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1. Wave Corrector displays the Save As dialog box so you can name the session Its default name will be the name of the source file but with the ses extension Note Do not delete the original uncorrected wave file from your hard disc Save Session only saves the correction data it does not save a copy of the wave file If you delete the wave file Wave Corrector will not be able to restore the session Auto Save Session command File menu Use this command to cause Wave Corrector to automatically save a session file once every five minutes during an editing session Selecting the command a second time turns off auto saving When auto save mode is in operation the program also automatically creates a session file whenever you save a wave file See the Save Session command for more information about session files 45 Session File Properties Displays the properties of a session file Select a session file to display its properties Record New Wave File command File menu Use this command to make a new recording via the Line In port of your soundcard Wave Corrector displays a Save As dialogue to enable you to provide a name for the file you intend to record You are then presented with the Record Dialogue shown below This dialogue enables you to monitor the level of the audio being recorded start stop and pause the recording settimed delayed and auto shutoff recording mode setthe audio
2. Trim Silence removes silence from the start and end of each file before it is saved The Re sample checkbox enables you to re sample each file as it saved Sample rates of 44100 48000 882000 and 96000 are supported with bit depths of 16 or 24 bit Use the Config Button to select your required re sample rate and to configure the re sampler Control Buttons Use the Add and Remove buttons to select and de select files for processing Start initiates the batch operation If batch processing is in progress Cancel will halt operation at the end of the current task Use the Save Settings checkbox if you want the program to remember your Batch settings between sessions File Type Batch Operation Use this section to specify the file type of saved files and to specify whether to add a cor suffix to the file name Note if you choose not to add a suffix there is a possibility that your original file will be overwritten Add Index adds a numerical value to each file name equal to its position it the batch file list This guards against files being overwritten since each output file will include a unique index number For compressed formats use the Configure button to select the compression parameters Progress Report This area reports the progress of the batch operation 41 Save command File Menu Use this command to save the corrected wave You will be presented with the following dialog box See File Naming for
3. Audition Original E Toolbar amp Audition Corrected Key Numeric Keypad 1 Audition Original Key Numeric Keypad 3 Audition Corrected or click the right mouse button in the main window and select the required option Cancel Command Corrections Menu and Tracks Menu Select Cancel to stop playback immediately Shortcuts Toolbar Key Esc Key Numeric Keypad 0 75 6 5 Tracks menu commands Next Previous Marker Split Track Merge Tracks Cue Markers to Tracks Play Commands From Start and From Marker Audition Track Boundary Pause Skip Back Cancel Playback Fade Type Gapless for DAO Properties Track mm ss Next Marker and Previous Marker Commands Tracks Menu These commands enable you to jump forward to the next track boundary marker or back to the previous one When auditioning the placement of track boundaries you can use these commands to quickly step through the tracks adjusting them as required Shortcuts Toolbar Next Marker Toolbar Previous Marker 76 Split Track Command Tracks Menu This command enables you to split the current track This will normally be because Wave Corrector has failed to correctly identify a track boundary You may also wish to place a track boundary in the middle of a piece of music in order to force a track change at that point on the resulting CD Remember to use Gapless Tracks mode if this is the
4. The maximum level of the recording in decibels relative to clipping level together with the position in the file where the peak occurs The name of the sound device used for the recording Use the Devices button to change the recording device Paths Command File menu Use this command to select the location where the program stores its output files and also where it stores its temporary files You can either choose a specific directory or you can choose to use the same directory as the file being processed For temporary files you can also choose to use the Windows TEMP directory Devices Command File menu Use this command to select an audio input or output device This is useful if you have more than one soundcard installed on your system In this case you could for example use one soundcard for input and the other for output If you are using a non standard soundcard you can also use this command to specify an alternative volume control instead of the standard Windows applet 49 External Encoders Command File Menu Use this command to configure the external command line encoders used by Wave Corrector See also the topic Using an External Encoder External Encoder Set up Auto Detect Encoders Set path Software Encoders Browse Encoder List Encoder Default Command Line flac exe f o 4OUT T TITLEZXT T ALBUM L T ARTIST 4 T GENRE G T TRACKNUMBER N flac oggenc2 exe
5. The use of these algorithms ensures that there is minimal degradation when up or down converting 3 3 File Tagging in Wave Corrector File tagging is the name given to the process of adding text fields to audio files The fields typically contain information such as the title artist genre etc Tags are used principally by audio library programs to sort and catalogue the items in the library Because Wave Corrector usually works with album files consisting of several tracks it provides the option to apply tags to the individual tracks of a file being processed These tags can be saved in the output files produced by the program and can also be used to generate output file names using a customisable rule File tags cannot be saved in wav files This is because there is no standardised way to do this and file tags on wave files are misinterpreted by many external programs The following tags are supported by Wave Corrector 1 Track Title 2 Track Artist 3 Track Number 4 Album Title 5 Genre 3 4 Using an External Encoder The use of external command line encoders expands the flexibility of Wave Corrector beyond its built in ogg and ape encoders External encoders allow you to save in the commonly used FLAC and MP3 formats and several other encoders can also be used if desired Encoders can be downloaded from various sites on the Internet Download links for all the supported encoders can be found at Encoder Downlo
6. title T album L genre G track N IN OUT FLAC flac f o OUT T TITLE T T ALBUM L T ARTIST A T GENRE G T TRACKNUMBER N IN SSRC wav rate 44100 bits 16 IN OUT note SSRC is not strictly an encoder it is a high quality sample rate converter that you can use via the external encoder interface SSRC_hp wav rate 44100 bits 16 IN OUT note a high resolution build of the SSRC sample rate converter See Command Line Help for an explanation of the command line parameters When you use an external encoder in Wave Corrector you specify which encoder to use from a drop down list in the Save window also in the Batch window 16 3 5 Command Line Help Although Wave Corrector will automatically generate a command line for most encoders you may wish to customise this to meet your own requirements For example you may wish to try out different compression settings All command line programs come with documentation describing the commands they recognise and their required format If you cannot find the documentation you can open the windows command prompt under accessories on the Start menu and navigate to the directory where your encoder is located Then type in name of the encoder followed by the command h for example lame exe h By convention this will display a help screen for the program The creation of a command line is best illustrated with an example From the LAME documen
7. Toolbar button has been added The Normalise function now works correctly Other minor bug fixes 3rd April 2000 Version 1 2 released Changes Version 1 2 from Version 1 12 A record function has been added together with the facility to normalise the amplitude of the recorded wave This new feature removes the present requirement to use a separate wave editor application to acquire a wave file for processing by Wave Corrector A block select function has been added together with various subsidiary functions eg delete corrections in block re scan block perform second pass on block etc The main window now behaves more like a regular wave editor window in particular the zoom range has been extended to allow unrestricted zoom out It is now possible to centre the display on any arbitrary position in the wave file Previously the display could only be centred on a correction or track boundary marker Screen updates have been speeded up and are now very fast The help file has been updated Bug Fix Manual track boundary moves now work correctly in Disk at Once mode Other minor bug fixes 21st February 2000 Version 1 12 released Changes Version 1 12 from Version 1 11 Compatibility between Wave Corrector and some other waveform editors and recorders was improved 21st January 2000 Version 1 11 released Changes Version 1 11 from Version 1 1 The following reported bugs were fixed The output file was occasionally corrupted wh
8. Wave Ctr RENTE S srs rens 18 3 7 Setting EIU ESI DERNIERE TE m 19 2H Buch Processing Wave EMBR iu e repite baise ean E rM eU NA M M US iS 20 CASE Records Wave a IQQ TEE UO STRE 20 210 Recording TIo eO c E TN 21 JAI 0 cR Roi ONE 22 Z File NADINE serere eiia a Ae irna Oa eKA AAEE eaP aL EE a Ea E a aena iOa 23 213 Correcting the Volne sciocca NOn e ae e NEU RASENE aE RRE ae e 24 CN EEG T MENTRE 24 pg ELSE 26 3 16 uae ISI AU NEQU T ie ae AARE E EE is 26 ER Wo Ee iiv IPTE Um 27 LN UU ALIE Click COmecU0nS orere ua E E E SE EE T EE EE 28 4 1 Understanding Click Concealinent sssini sepetin es ko EE Eini E a E eiai ae 28 A2 V ELM EN LS I esinin nar aiei eaae iaa EA EEEIEE EES 29 4 3 Au ditoning RE REINO m E 30 4A Adj s ng 3 Click CorrecG csin E 30 45 nemus New Click CUEIBEDOIU ao pte drugs a ved ito i E er A EEE s 31 4 amp 6 Removing fcc seacoast eO no vbt E Quit un 31 4 7 Correcting Very Severe Clicks and PIO ccisins adisscevaseesssnvaceienccoasnevancvancuseocasevnvacatanenscazeanes 32 S DEDOS L6 E a a A E E E E A ebd p ere 32 4 9 Spectral Methods for Finding Cit ici32205 ishesovatescccatsanccevandddectatsdasetadacivastasaccheitedsnesenoenas 33 410 Block OperJGOnS siseses iveene uns save eieae one AE anon vag woes EEA Ua Ter TEETE S ds 34 EEE A 4L NETTE 35 5 1 Selecting a Track or a Track nA ooo e p UE cena H pe na GoeiwanesdsadsateeanSens sob Qn uiri eR 35 5 2 Merging and Splitting br RTT IE 35 5 3 Adding Silence or Fade I
9. a threshold the recording stops when the signal falls below the threshold for more than 25 seconds Timed allows you to pre set a recording duration Any time can be set from 1 minute up to the maximum possible using Wave Corrector s recording format This is 3hrs 22min at 44 1kHz sampling rate and 3hrs 6min at 48kHz sampling Timing starts when you press the Record button and at the end of the pre set period recording is automatically stopped and the file saved Delayed Start allows you to set a start time for your recording This is useful if you are recording from the radio Sample Rate Options Use the selector to choose from sample rates between 44 1 and 96 kHz for your recording Use the check box to make 24 bit recordings Depending on your soundcard some options may be greyed out Use the Speed Conversion selector to adjust the sample rate to compensate for playing a disc at a slower than normal speed This is principally to allow playing a 78rpm record on a 45 rpm turntable Use the custom speed conversion option if you have a non standard eg 80rpm record Enter a conversion ratio equal to the actual playback speed divided by the speed at which the disc was originally recorded Note this option may not work with all soundcards 48 File Information The Information box shows The status of the recording idle in progress etc The duration of the recording and time remaining in minutes and seconds
10. a paused recording 0 8th March 2004 Version 3 0 released 1 Changes Version 3 0 from Version 2 5 The program now supports saving and loading in Monkey s Audio ape format as well as saving in Ogg Vorbis ogg format Both compressors can be configured to meet user preferences Files can now be tagged with the following additional information Track Title Track Artist Album Title and Genre This is to permit easy integration with a PC music library Tags are saved in ape files ogg files and Wave Corrector session files The program now supports a sampling rate of 48kHz as well as 44 1kHz 48kHz is the native sampling rate of most PC soundcards as well as DAT and most digital broadcasts Using 48kHz sampling will sometimes allow you to avoid unnecessary sample rate conversions Files names can now be specified as any combination of the input file name track tags track numbers and user entered text There is now an option to slow down playback speed to aid the identification of clicks Timed recordings are no longer restricted to one hour and are allowed up to the maximum permitted by Wave Corrector s internal format 3hrs 22 min at 44 1kHz sampling A new delayed start mode has been implemented allowing the user to specify a start time for recording to commence There is now a user adjustable speed compensation mode to allow for recording from old non 78 disks The Record Window now includes a colour coded banner indicating the current status
11. advice on naming your files Save Corrected Waveform Ebb tide The very thought of you I ll be seeing you Love letters Long ago and far away How deep is the ocean m M M I INPUT cort Y Ebb tide way The very thought of you way l Il be seeing you way Love letters way Long ago and far away How deep is the ocean wav Shortcut Key CTRL S 42 The Save window is divided into the following areas Track List This area lists the tracks that you have generated If you have named any of the tracks the names will be displayed in the right hand column Use the Properties button to add or alter track names Naming Options and Other Settings Select a file naming rule from the drop down list or type in a custom rule The naming rule is used to generate the output file names The following tokens can be used in track names INPUT GENRE ALBUM TITLE ARTIST and for track number Override the start number if for example you are processing the second side of an LP Use Consecutive Numbering to restrict numbering to just the tracks you have selected The generated names are previewed in the bottom window The check boxes allow you to normalise or scale individual tracks as they are saved Note to normalise the entire file use the Normalise command on the Waveform Menu When Normalise or Scale is selected enter your required decibel value in the dB box The Re sample checkbox enables you
12. buffer is used to fill the command line drop down list To prevent the list from becoming too long you can removes entries here that you no longer require Load and Save Settings commands File menu Use these commands to save and restore all program settings By default settings files are given a config extension 51 Exit command File menu Use this command to quit Wave Corrector You can also use the Close command on the application Control menu Wave Corrector prompts you to save any unsaved corrections Shortcuts Mouse Double click the application s Control menu button N Keys ALT F4 1 2 3 4 command File menu Use the numbers and file names listed at the bottom of the File menu to open one of the last four wave or session files you worked on Choose the number that corresponds with the file you want to open 6 2 View menu commands Show Overview Show Spectrum Show Spectrogram Signature Show Track Times Background Fine Line Trace Hide Normalisation Toolbar Status Bar Splash Screen 52 Show Overview View menu Use this command to show an overview of the entire file or of a single track The overview is displayed in a small window below the main window Show Spectrum View Menu Use this command to show the frequency spectrum of the currently selection portion of the waveform The spectrum is displayed in the Overview Window at the bott
13. by the selected menu item or depressed toolbar button and includes panes to indicate the statistics of the current operation A check mark appears next to the menu item when the Status Bar is displayed See Status Bar for help on using the status bar 55 Enable Splash Screen View menu Use this command to enable or disable the splash screen when Wave Corrector starts up 6 3 Waveform menu commands Undo Cut Re Scan Clicks Super Scan Clicks Re Scan Tracks Re Scan All Auto Scan Options UndoVolume Changes Goto Max Sample Normalise Channel Balance Remove Filtering Filters Edit Noise Profile Status Undo Cut Command Waveform Menu Use this command to restore a block that has been removed with the Block Cut amp Splice command To restore a cut block first select its Cut Marker in the Correction List and then select this command The block will be restored Any click corrections within the block will also be restored 56 Re Scan Clicks Command Waveform Menu The source file is automatically scanned by Wave Corrector when it is first loaded This command enables you to re scan for clicks if the results of the original scan are unsatisfactory All the existing corrections are removed before re scanning begins Track markers are unaffected when you use this command Selecting the command activates a dialogue box for entering new scanning parameters See the Options Dialogu
14. case in order to get a seamless track transition and also to burn the CD in Disc at Once mode Move to the point where you want a new track boundary to occur and select this command The new boundary will be created and subsequent track numbers will be incremented by one The new boundary is automatically selected to enable you to accurately adjust it to its final position Shortcut Toolbar x Split Track Merge Tracks Command Tracks Menu This command enables you to merge two tracks into one To use this command you must select a track boundary marker which lies between the tracks you want to merge and then select the command Note you can immediately move to the track end or track beginning marker associated with the current track by using the Next Marker or Previous Marker command You will normally use this command when Wave Corrector incorrectly identifies a track boundary say during a pause in the recorded music A confirmation dialogue prevents you from accidentally removing a track boundary Shortcuts Toolbar kad Merge Tracks Cue Markers to Tracks Command Tracks Menu This command converts each cue marker into a pair Track End Track Beginning of track boundary markers Use this command to manually split a file into arbitrary tracks 77 Play Track s Commands Tracks Menu These commands enable you to play back a track or the entire wave file Play track s from start Play tra
15. clicks detected 3 the position of the mouse in the main or overview window 2 8 Keyboard Shortcuts Open File Ctrl O Save Ctrl S Record Ctrl R Batch Process Ctrl B Exit Wave Corrector Alt F4 Help F1 Context Help Shift F1 Next Correction Cursor Down Previous Correction Cursor Up Scroll Left Cursor Left hold down SHIFT key for bigger steps Scroll Right Cursor Right hold down SHIFT key for bigger steps Remove Correction s Delete Insert Correction Insert Shrink Correction Page Down Insert Cue Marker Numeric Pad Tab In most screens Right click mouse for context menu 11 During Correction Adjustment Confirm Apply Edit Return Cancel Edit Escape Playback Commands Play track Original Shift Space Bar Play track Corrected Space Bar Audition click Original Numeric Pad 1 Audition click Corrected Numeric Pad 3 Pause Resume Numeric Pad Del Space Bar Stop Numeric Pad 0 Escape Jump Back 2 sec Numeric Pad Enter Back Space Jump Back 1min Page Up Jump Forward 1 min Page Down Speed Up Numeric Pad 9 Slow Down Numeric Pad 7 Signal View Vertical mV div Expand Numeric Pad 8 Condense Numeric Pad 2 Horizontal t div Condense Numeric Pad 4 Expand Numeric Pad 6 12 3 Processing Audio Files 3 1 File Types in Wave Corrector Wave Corrector supports both compressed and uncompressed audio formats Compression reduces the disc space required to store wavefor
16. for those at the start of the first track and at the end of the last track Actions available from this window You can immediately enter track boundary adjust mode by holding down the left mouse button over the track edge the white vertical line and dragging to the required new position Similarly you can adjust the fade and silence settings by dragging their respective markers with the mouse 2 3 Overview Window The overview window at the bottom of the screen displays a time versus amplitude histogram of the currently selected track or if no track is selected it displays a histogram of the entire wave file When the entire wave file is displayed as above alternate tracks are shown in contrasting colours When the view in the main window is sufficiently wide a horizontal white bar is displayed at the top of the overview window to indicate the section being displayed in the Main Window Individual corrections are indicated by colour coded markers at the bottom of the window The colours correspond to the colours in the correction list window Optionally via the View menu you can also display a correction signature in this window The correction signature indicates the rate at which Wave Corrector is making corrections This helps you identify areas where manual editing may be required See under False Positives in Understanding Click Concealment for more advice on using the correction signature Except during play
17. from Version 2 1 A bug that caused some small perturbations in the corrected wave has been fixed Processing of some commands has been speeded up 19th February 2001 Version 2 1 released Changes Version 2 1 from Version 2 0 A marker is now displayed in the Correction List to indicate the current centre position of the display During playback a pane in the status bar indicates whether the original or corrected version is being played There is now the option to display the frequency spectrum of the currently selected portion of the wave There is now the facility to record 78rpm records at 45rpm There are additional user options for configuring the main display The user can now specify the location of temporary files The size and position of the main program window is now saved between sessions Full drag and drop support is now included for both wave or session files The program now checks for sufficient free disk space when opening and saving files Track file names now include a leading zero for track numbers less than 10 Click detection sensitivities 1 and 2 have been reduced slightly The most recently uses file list now shows wave files as well as session files For users of Windows NT and Windows 2000 only The 32k limit to the number of corrections no longer applies 1st November 2000 Version 2 0 released Changes Version 2 0 from Version 1 26 A range of digital filters hiss hum etc have been imple
18. of the recording operation Peak hold indicators have also been added which are useful for setting up recording levels It is now possible to specify a default output directory for saving files It is now possible to select an input or output device from within Wave Corrector and to select an alternative record Volume Control if one is supplied with your soundcard The limitations in the demo version have been relaxed All tracks can now be saved although there is a 30 second limit on tracks after track 1 A new command Shrink Correction has been added Various keyboard shortcuts have been added Vertical and horizontal scale settings are now saved in the session file The playback routines have been modified to ensure better synchronisation with some soundcards 92 Visibility of the moving playback cursor in the main window has been improved Bug fixes There was a rather major bug in v2 5 that prevented the hiss filter from working in auto scan mode This bug is now fixed along with some other more minor bugs 0 19th July 2003 Version 2 5 released 1 Changes Version 2 5 from Version 2 4 A new batch mode of operation has been implemented This allows users to select a group of files to be processed and to specify a sequence of actions to be performed on each file A new graphic equaliser has been added It is now possible to selectively remove a click correction on the left or the right channel The super scan function has been en
19. persistence the record meter now removes dc offset at low volume levels The program now checks disk space before recording and sets a maximum recording time accordingly 91 The batch dialog now shows the click count after click detection and the maximum amplitude when normalising The tracks menu now allows up to 500 tracks to be listed There is a new link on the Help menu direct to the support section of the Wave Corrector website There is a relaxation of the limitations in the trial version The program now saves the first and last 30 seconds of tracks after track 1 This enables the full trialling of track editing features Some minor modifications have been made for improved Linux compatibility Bug fixes when tokens were used in file naming only one directory could be created in a nested chain This restriction has been fixed A problem associated with the horizontal scale have been fixed The bug caused an incorrect scale setting to be used when a file was loaded after a previous file had been closed Restoring a session file now works when the original file is in ape format Changes between record sample rates of 44 1 and 48kHz are now applied immediately The temp and output paths are now set correctly when a root directory is selected The context menu shrink correction command now works properly The cursor position window now always showing correct time It is now possible to stop a recording by hitting stop button during
20. phone or fax UK Customers Only If you have a UK bank account you can pay us by sending a cheque direct to Ganymede Test amp Measurement In this case the price is UK 30 Cheques should be made payable to Ganymede Test amp Measurement Only cheques denominated in Pounds Sterling can be accepted Send orders to Ganymede Test amp Measurement Holly Croft Barrack Hill Coleshill Amersham HP7 OLW 86 Registration Form for Wave Corrector Professional Edition Last name First name Company Street and City State postal code Country Phone Fax E Mail Please do not forget to include your e mail address We will use e mail to communicate with you How would like to receive the registration key e mail fax postal mail I enclose a cheque for 30 sterling Date Signature 87 7 2 Wave Corrector Support Support can be obtained via the Wave Corrector website Here you will find the latest version of Wave Corrector together with FAQ s bug reports and information regarding future releases Wave Corrector is developed by Ganymede Test amp Measurement Holly Croft Barrack Hill Coleshill Amersham HP7 OLW United Kingdom E mail admin wavecor co uk 7 3 Acknowledgements Monkey s Audio ape format support is included by kind permission of its author Matt Ashland Further information can be found at the Monkey Audio website at http www monkeysau
21. processing and scan for clicks and track boundaries Wave Corrector displays the Open dialog box in which you can locate and open the desired file e Record a new wave file and scan for clicks and track boundaries Wave Corrector displays a File Save dialog box via which you can locate and name the desired file be Re Scan and process the currently loaded wave file for clicks Opt E Call the Scan Options dialog box Options such as click detection threshold can be set by the user tl Find a correction meeting new search criteria A Jump back to the previous correction meeting the current search criteria amp Jump forward to the next correction meeting the current search criteria Ed Audition a click before correction has been applied 4 Audition a click after correction has been applied x Remove a correction from the correction list The original waveform is restored A confirmation dialog appears before the correction is permanently removed T l Starts the correction adjustment process or manually inserts a new correction Using this command the placement and width of a correction can be altered kS Use Cut amp Splice to remove a section of the wave and cross fade over the join amp lt Apply digital filters to the currently loaded wave file rd Play track s from start Plays the current track from the start or if no track is selected plays the entire file A gt Play track
22. q7 o 0UT EXT 1 L a A 5 6 N N XIN ogg WMBEUTIL exe input IN output OUT a_setting 160_44_2 wma waypack exe h IN OUT wy lame exe b 160 IN OUT mp3 faac exe b 160 o OUT IN aac Remove Command Line History q o OUT XT 1 L a 4 G 5 N N IN b 128 IN OUT Delete The External Encoder window is divided into the following sections Auto Detect Encoders Wave Corrector will automatically search the path you specify including subdirectories for command line encoders that it recognises it will add them to the encoder list and fill in default entries for the command line string and file extension Therefore the easiest way to set up Wave Corrector is to place all your command line encoders in a directory and specify it as your auto detect path 50 The following encoders are recognised flac exe flac lame exe mp3 fastencc exe mp3 e wm8etil exe wma e wmcemd vbs wma oggenc2 exe ogg wavpack exe wv nereoaacenc exe mp4 faac exe mp4 mppenc exe mpc ssrc exe wav sample rate converter ssrc hp wav sample rate converter Encoder List This list shows the encoders that are registered with Wave Corrector together with their default command lines and file extensions Use the buttons to add delete or modify these entries Command Line History When you modify a command line in the compression settings window the new command line is saved in a history buffer The
23. saved between sessions The program now handles multiple session files with different names The scale in the main window can now optionally show track timings The trial version of the program now gives full functionality for 30 days Bug fixes Session files now include track fade settings Hiss filter now works correctly with 44 1kHz 24bit and 48kHz 24bit files Various other minor bug fixes 7th September 2009 Version 3 6 released Changes Version 3 6 from Version 3 5 The program now supports 24 bit files and 88 2 and 96kHz sampling rates The built in ape encoder has been updated to the latest version v4 06 T The Cut amp Splice user interface has been improved Track detection has been improved Support has been added for using the wma9 external encoder Support has been added for using the SSRC sample rate converter as an external encoder Bug fixes Vertical scrolling now takes proper account of the vertical scale setting The stereo corrections option now works properly when correction width is reduced to zero cue markers can now be placed much closer together Various other minor bug fixes 9th June 2008 Version 3 5 released Changes Version 3 5 from Version 3 4 An option has been added to display a spectrogram in the bottom Overview window An option has been added to disable the splash screen at start up Search settings are now saved between sessions The program now attempts to repair damaged header sections of file
24. think you have identified it select the Adjust Insert command The program enters adjust mode 4 Now fine tune the width of the correction to match the characteristics of the click If necessary you can also nudge the position of the correction to the left or right with the cursor left right keys Use the Audition command to evaluate the effectiveness of your adjustments 5 When you are satisfied with the result click Apply and your new correction will be inserted into the correction list 6 If your identification of the click was mistaken simply click Abort to return the normal waveform screen See also Inserting Cue Markers for another tool to help you manually insert corrections 4 6 Removing Click Corrections Occasionally it will be necessary to remove a correction or a group of corrections because the click detect system has misfired on actual music Individual Corrections can be removed using the Remove Current command If you need to remove a contiguous group of corrections highlight a block around the corrections you want to remove and select the Block Remove Corrections command 31 4 7 Correcting Very Severe Clicks and Plops If a click is very severe it may not be possible to remove it completely using the standard Wave Corrector procedure This is because too much of the original waveform may be obliterated for the program to be able to reconstruct the waveform In this case the click can be re
25. to re sample each file as it saved Sample rates of 44100 48000 882000 and 96000 are supported with bit depths of 16 or 24 bit Use the Config Button to select your required re sample rate and to configure the re sampler The Save Settings checkbox causes the program to save your normalise and re sample settings between sessions Re sample Settings Use the controls to set your required sample rate and bit depth It is recommended that you leave the other controls on their defaults Two Pass is only required if the signal level is very close to maximum It checks for clipping and reduces the signal level if necessary Resample Settings xj New Sample Rate 44100 TwoPass New Bits per Sample h x Cancel Dither z F The current file no dither default Y AEE 44100 16 Probability Density Function PDF rectangular default 43 Output Names This box lists the file names that will be created Any files that already exist will be shown in red File Type Save Operation Select the file type for your output files For compressed formats use the Configure button to select the compression parameters Compression Options Use this dialogue to select the compression options for the Ape Flac Ogg or external encoder The Flac and Ape settings determines the amount of compression and the time taken to compress the file There is no quality difference between the settings The Ogg setting offers a
26. trade off between audio quality and file size For help with configuring an external command line encoder see the topic Command Line Help e Compression Settings M Built in Encoders Flac Compression Level Ape Compression Level Ogg Quality Settings optimum 5 Y High Y High 210k Y External Encoder Encoder File Extension lame exe mp3 Restore Defaults Custom Command Line Parameters b 160 ta 95A Et 9T El SaL tg G En N add id3v2 IN OUT 44 Save and Close command File Menu Use this command when you have finished making corrections to the wave file The corrected wave is saved and all open files are closed See File Save command for more information about this command Restore Session command File menu Use this command to restore a session you have previously saved The command restores the correction list track list filter and volume settings that were previously saved and regenerates the corrected waveform Wave Corrector displays the Open File dialog box so you can select the session file you want to open Session files are identified by a ses extension Save Session command File menu Use this command to save and name the current session Do this if you will want to return to it later to modify the corrected wave The command saves the correction list track list filter and volume settings so that they can be restored later
27. until the distortion reduces to an acceptable level If the overall amplitude is now too low you can use Wave Corrector s Normalise function to correct the level before burning your CDr Left Right Channel Reversal Problems You should be aware that some CDr burning software does not correctly allocate the left and right channels to the CDr This seems to be because the wave file format allows different size header blocks but that the CDr burning software does not take account of this when identifying the first sample to burn Therefore depending upon which wave recording program you use the resulting CDr may or may not have the channels reversed For example using Adaptec Easy CD Creator 3 5b the channels are reversed if you use Goldwave to make your original recording but are correct if you use Wave Studio This is another reason to carry out test recordings before committing your record collection to CD If you find that the CD channels are reversed then the simplest way overcome the problem is to reverse the left right leads between your record player deck and your sound card This will in effect give you a double reversal that will solve the problem Remember however to re perform the check whenever you change either your CDr burning software or your wave file recording software To ensure that it does not compound this problem Wave Corrector strictly maintains the header block size of all its output files to be the same as the header
28. waveform to its pre filtered state Click corrections are not removed by this command 64 Filters Command Waveform Menu This command allows any combination of five different digital filter types to be applied to the waveform For a more complete discussion on digital filtering see the section Digital Filtering and subsequent sections i 2x Select Filters Apply Selected Filter s Hiss Reduction 8dB us l Off Min TM Replace Existing Apply IV Hiss id E C Superimpose Test Treble Control Off Save Settings Cut Off Lift Cancel M Treble OPER ETT ANS Hum Rumble Mp Applied Filters v Graphic notch New Edit None UTLELLLELLLLLE 10 LLL ILE Lr gl 20 H MU 2 4 6 810 12 14 15 18kHz 22 Toolbar Button BI The Filters window is divided into the following sections Hiss Filter Select the check box and move the slider to the amount of hiss reduction you require Treble Filters Select the check box and move the slider to the amount of treble lift or treble cut you required 65 Special Filters Use the check boxes to select the Rumble and Hum filters Graphic Filter Select the check box and choose a graphic filter from the drop down list To create a new filter or to edit an existing filter click on the New Edit button This launches the Graph
29. x1 adjusting the image of the waveform Wave and Track buttons for selecting the view mode for the main window Vertical Scale in mV per Division ranges 20 to 1000 in1 2 5 steps A check box to auto scale the vertical display Horizontal Scale Waveform View in Samples Secs Mins per Division ranges 5 samples to 5 minutes in 1 2 5 steps Horizontal Scale Track Boundary View in Seconds per Division ranges 0 1 to 10 in 1 2 5 steps Trace Separation in Divisions ranges 0 to 8 Left and Right Channel On Off buttons labelled L and R A window showing the centre position of the main display in mins secs msecs from the start of the track or file A slider to slow down playback This is to aid the identification of clicks Shortcuts Keys Num Keypad 2 Down Arrow Vertical Zoom In Num Keypad 8 Up Arrow Vertical Zoom Out Num Keypad 6 Right Arrow Horizontal Zoom In Num Keypad 4 Left Arrow Horizontal Zoom Out Other Shortcuts use the mouse scroll wheel to zoom the main window display hold down the shift key for vertical scroll 2 6 Toolbar lt le amp alale ele sels 9 El Fle o eela sepe The toolbar is displayed across the top of the application window below the menu bar The toolbar provides quick mouse access to many tools used in Wave Corrector To display or hide the toolbar use the Toolbar command in the View menu Click To Open a new wave file for
30. 5 98 or ME then a limit will be automatically set to comply with the list limitations inherent in these operating systems no more than about 32000 Items can be listed Certain items will always be displayed Irrespective of the option you select These items are Track boundary markers grey User corrections light blue Cut Markers dark blue Cue Markers white The currently selected correction Audition Commands Corrections Menu Use the Audition Correction commands to hear a click before and after correction has been applied Use the Audition Original or Audition Corrected option as required The duration of the played back correction is dependent on the selected horizontal scale of the main window If the window is displaying more than 2 seconds of waveform then the playback will start and end at the window boundaries If on the other hand the window is displaying less than 2 seconds the playback if forced to a 2 second period centred on the correction event 74 During playback the second status bar pane from the left indicates whether the original or corrected version is being played You can instantly switch between versions by clicking over this pane with the mouse Note if a block is selected these commands audition the cut and splice feature Audition Original plays the section without cutting the block Audition Corrected plays the section with the block cut Shortcuts a Toolbar AE
31. Opening C waves beet1 wav Removing Clicks Filtering Treble Filter 39 The Batch window is divided into the following areas File List This area lists the files to be processed You can drag and drop files here or alternatively use the Add button to bring up a file selector box Click Removal Check the check box to remove clicks Use the Configure button to change the click detection and correction parameters Batch De click Options The detection options are described in the Super Scan topic For badly damaged recordings set a super scan value to enable multiple passes of the click corrector Set De Click Options 2 x r Click Threshold 2 Dff Min Max jo Cancel m Super Scan Passes fi Set De Click parameters for Batch File Operations For Advanced Options click here for expert users only Advanced gt gt Digital Filters Check the check box to apply digital filters Use the Configure button to select which combination of digital filters to apply 40 Other Operations Use the check boxes to select the normalise scale balance or Trim Silence options Normalise fixes the peak amplitude of each file to the value you set Scale varies the amplitude of each file by the amount you set For both Normalise and Scale you can type in a value or select a value from the drop down list Note Scale allows both positive and negative values use positive for gain
32. Profiles As already mentioned the Hiss and Hum reduction filters use a technique known as Noise Subtraction This technique takes a snapshot of the unwanted noise that is to be removed This snapshot is known as a noise profile and it is used to generate a noise mask that is subtracted from the entire file For the technique to be successful it is very important that the noise profile consists of typical noise from the file It must be taken from a quiet passage where there is noise present but no music If there is any music at all present then program will over correct the noise and unpleasant artefacts are likely to be the result It is also important to remember that the noise must be constant throughout the file If the noise varies throughout the file then it won t be possible to locate a typical noise profile This will result in some sections being over corrected and others under corrected The technique is really only successful for removing tape hiss hum or interfering tones However in the case of interfering tones these might be more effectively removed with a notch filter See the section on the Graphic Equaliser Filter Wave Corrector automatically generates a noise profile when you load a wave file To do this it searches the first and last 30 seconds of the file and if that is unsuccessful it looks for a quiet section within the file for example at a track change To aid the program in its task you shou
33. Support command Help menu Use this command to visit the support section of the Wave Corrector website About command Help menu Use this command to display the copyright notice and version number of your copy of Wave Corrector Context Help command R Use the Context Help command to obtain help on some portion of Wave Corrector When you choose the Toolbar s Context Help button the mouse pointer will change to an arrow and question mark Then click somewhere in the Wave Corrector window such as another Toolbar button The Help topic will be shown for the item you clicked Shortcut Keys SHIFT F1 85 7 Wave Corrector Reference 7 1 Registering Wave Corrector Use the Register command on the Help Menu to enter your user name and registration key A user name and registration key will be provided when you purchase Wave Corrector The key will enable Wave Corrector to process files longer than two minutes The Registration fee is US 59 or the equivalent in other currencies If you have an Internet connection you can register on line using PayPal or the Sharelt Registration service Use on of the following links to go directly to the ordering page Purchase via PayPal Mastercard Eurocard VISA Delta Switch Solo Discover American Express Purchase via Sharelt Mastercard Eurocard VISA Diner s Club US check Euro cheque or wire transfer The above link also allows you to purchase by
34. Wave Corrector Professional Edition v3 7 Vinyl Tape to CD R Processing Digital Audio Editing for the PC User Manual This user manual is an edited version of the help file that is included in the Wave Corrector installation package The manual is available in Adobe Acrobat pdf format from the Ganymede Test amp Measurement website Manual produced by Derek Higgins Ganymede Test amp Measurement Holly Croft Barrack Hill Coleshill Amersham HP7 OLW Tel 44 0 1494 724362 email admin wavecor co uk web http www wavecor co uk S Table of Contents LA des UDI REN EAE A T A A EN 1 LEW e Wwe Corredor PE cm 1 eR Wave Corector ar TRIP 1 2 ne Leer MET IOE aTe T NUT 2 2 1 The Main Window Wave VieW esessseeeeeseeessseeesssseessssreessssresseseeesssseessssreesssseeesserersssseeessssne 3 2 2 The Main Window Track VieW eesoeeeeseseeesesreesssseessssreessssresseseeesssseesssseeesssseeesserersssseeesssne 5 23 Overview Window TOT 6 24A Correction List IH US ATTE 7 PAERUA E E e PR E PA E O A AE EEE 8 E e e E TEE P EENT E E E E ETET 9 pA NULLS E E AEE ASS ASS AS 11 28 Keyboard SUOG ETT Tem 11 CN RECIBEN T e R E r A A EE iE EEEE iaa 13 21 Eile Types in Wave Conen ERE 13 3 2 Sample Rate and Bit Depth Rn ee T das ierre eo EO DT ee 14 3 3 File Tagging in Wave COrreCtOr cs es its a ncsv ons ninp aun nes TTE 15 CIN ONDE NI OE NS NETTE S TUO 15 Za Command CIN BRL RENT OTT EO OO TESTES 17 3 6 Loading Files into
35. ad Links Encoders that the program recognises are displayed in the Encoder setup window See External Encoder Setup Each time you start Wave Corrector it automatically scans for encoders searching the path specified at the top of the setup window 15 To add an encoder place it in somewhere in the auto scan path Alternatively you can use the Add button in the setup window to add an encoder in any arbitrary location Wave Corrector automatically sets a default command line and file extension The following list shows the automatically recognised encoders and their associated command lines LAME mp3 vbr new V2 ta 96A tt T tl L tg G tn N add id3v2 IN OUT warning versions of LAME prior to v3 98b4 will crash if you use a non standard genre If this happens remove the tg G element from the command line FASTENCC mp3 IN OUT br 160000 WMBEUTIL wma input IN output OUT a_setting 160 44 2 WMCmd vbs wma input IN output 96OUT a setting Q100 96 2 24 note this Visual Basic script is included in the Microsoft wma9 package FAAC mp4 b 160 artist 96A title T album L genre 96G track N o OUT IN NERO AAC mp4 q 0 5 if IN of WOUT WAVPACK wv h IN OUT note this command line is for lossless encoding See Wavpack documentation for lossy encoding OGGENC2 ogg q 7 o WOUT t T l L a 96A G 96G N N IN MPPENC mpc standard overwrite artist 96A
36. ary security if for example you need to back up your library onto a second computer For these reasons we recommend it over other encoding systems Wave Corrector also supports the use of external command line encoders such as LAME EXE for the production of MP3 files This support give you the flexibility to save in any format for which a command line encoder exists Note this option allows you to use the command line versions of the ogg ape and flac encoders These give you a wider range of encoding options than are present in Wave Corrector s built in encoders See Using an External Encoder for more information 13 The characteristics of Wave Corrector s different file types are summarised in the following table File Type Advantages Disadvantages Fast load and save Best possible audio quality Compatible with most audio software Wave wav Inefficient use of disc space Does not support textual tagging Ape Flac Supports tagging Best possible audio Slower saving and loading Limited ape flac quality Efficient use of disc space compatibility with other programs Slower saving Limited compatibility with other programs Some loss of audio quality Ogg Vorbis Supports tagging Very efficient use ogg of disc space ape flac and ogg formats are supported by PC audio applications such as Foobar2000 Winamp and Media Jukebox Ganymede Test amp Measurement recommends
37. back a vertical cursor indicates the position of the currently selected item During playback the cursor is synchronised with the audio As you move the mouse over this window the rightmost pane of the status bar indicates the position of the mouse pointer in minutes seconds and milliseconds Spectral Methods for Finding Clicks This window can also used to display the frequency spectrum of the waveform in the main window See the section Spectral Methods for Finding Clicks for more information on this topic Shortcuts from this window You can re centre the main window display by single clicking over the required new centre position If there is a correction near where you clicked that correction will be selected You can click over the Track Indicator in the top right hand corner of the window to switch between All Tracks and single track display You can play the track s shown in the window by clicking the right mouse button and selecting the play command from the context menu During Track playback you can move immediately to a new position by clicking over the new position 2 4 Correction List Window Celene The window to the right of the main window lists the click corrections ime ag determined during the scan operation together with various additional markers The list can be customised to show only corrections greater than a given magnitude The list shows the timestamp of the correction together with the ma
38. be used to place a track boundary in the middle of a piece of music in order to force a track change at that point on the resulting CD In this case you must use Gapless Tracks mode in order to ensure a seamless silent track transition 35 5 3 Adding Silence or Fade In Out to Boundaries As well as altering the position of Track Boundaries Wave Corrector also enables you to specify a fade in or fade out period for each track And you can add a period of silence to the start or end of a track The fade and silence parameters for a particular boundary are indicated in the Track Boundary view at the top of the window The yellow bar indicates the volume setting the triangular portion of the yellow bar represents the fade period The silence period is indicated by the hatched red bar Both of these bars can be adjusted by dragging with the mouse Click the Apply button to confirm your adjustments You can see the fade and silence settings for all your tracks with the Tracks Properties command The parameters can be individually edited if required You can audition your changes by using the Audition Track Boundary toolbar button See the Audition Track Boundary command for a description of this process 5 4 Adjusting and Auditioning Track Boundaries A track boundary must be selected before it can be adjusted or auditioned To immediately select a track boundary belonging to the current track use the Next Marker or Pre
39. been extended to cover additional sound card drivers There is some improved error reporting There is improved correction editing when adjacent corrections interact with one another There is a new keyboard shortcut for the remove corrections from block operation ctrl X The correction list now scrolls so that the selected correction is always visible Bug fixes Displayed channels no longer left right reversed after re scan or super scan operation The correction signature line no longer disappears off the top of the screen if the correction rate is very high Setting the click detect threshold to Off now works correctly Before very large clicks were still detected 9th June 2000 Version 1 24 released Changes Version 1 24 from Version 1 23 Minor changes to ensure compatibility with the Windows 2000 operating system It is now possible to open wave or session files by dragging onto the Wave Corrector program icon and support is also included for opening via the Windows Explorer right click context menu Minor cosmetic changes Sharelt postal address updated in help file 16th May 2000 Version 1 23 released Changes Version 1 23 from Version 1 22 A bug which caused a GPF in Windows NT has been fixed Track files now include a short fade in and fade out section at each end Other minor bug fixes 1st May 2000 Version 1 22 released Changes Version 1 22 from Version 1 21 The following changes have been made to the user
40. before applying the filter s Test Apply Filters To test the currently selected set of filters click the Test button The filter will be applied to a short section of the file centred on the current centre position in the waveform window Wave Corrector gives the option of testing over a 4 second or 20 second period and you can audition the section before and after the filters are applied To apply the filter s to the entire wave file click the Apply button Filters Status This area shows what filters if any have already been applied to the current file 67 Edit Noise Profile Command Waveform Menu The command enables you view and audition a file s noise profile and to capture a new one if necessary By default Wave Corrector automatically captures a noise profile by scanning the start of the file the end of the file and if necessary a quiet section in the middle of the file Wave Corrector analyses the quality of the captured profile and issues a warning if its reliability is suspect The profile can also be unreliable if the start or end of your wave file has noise like characteristics eg applause In such circumstances you should use this command to check the profile To check the noise profile click the play button You should hear background hiss but no wanted audio content If wanted audio is present drag the blue block to another part of the waveform and check again To select a different section of th
41. block When invoked from the Corrections Menu a short block is automatically created at the centre of the screen Cut amp Splice x Adjust the position and width of the block if necessary then click Apply or Abort Splice Length Audition Buttons C Short 5m5 egy x Medium 25m5 C Long 100mS Apply Abort Use this command to remove a serious aberration that cannot be removed with the normal correction process The command can also be used to remove longer sections for example an audience cough during a live concert The length of the cross fade is determined by the Splice Length setting Before applying the cut you can preview its effect with the audition buttons Audition Original plays the section without cutting the block Audition Corrected plays the section after cutting the block Note these actions are duplicated by the Audition buttons on the Toolbar See also Correcting Severe Clicks Toolbar Button 71 Insert Cue Corrections Menu Use this command to insert a Cue Marker into the Correction List at the current location Cue markers are also shown in the main display window as light blue short vertical lines Cue markers are used to identify locations that you might want to return to later Note during playback you can insert cue markers by pressing the TAB key Markers are inserted at the current playback position Short
42. block size of the corresponding input file This means that once you have performed the above check you can use Wave Corrector without worrying about its effect on channel reversal 21 3 11 Saving your Work Wave Corrector supports various file types for saving your work If you want to break off from an editing session and return to it at a later time you can save a session file Session files contain a list of click corrections and track boundaries values together with filter and volume settings The session file enables Wave Corrector to restore the editing session when required Use the File Save Session command to create a session file Note session files do not include any audio data When you restore a session the audio data is obtained form the original uncorrected audio file Therefore never delete the original uncorrected audio file until all editing work is complete When editing is complete you can save your work in one of three different built in audio formats You can also use an external encoding program to save to a file type not directly supported by Wave Corrector eg MP3 See File Types for help with deciding which file type to use See also Using an External Encoder If you are embarking on a complicated editing session you can select File Auto Save command This causes a session file to be saved once every five minutes Also with auto save in operation a session file will automatically be saved whenever yo
43. ch the Overview window Bug fixes Fixed overflow in normalise function when OdB selected Fixed crash when opening a file when there is a huge non audio data chunk at end of file Fixed test for drive when saving now does case insensitive test of drive letter Fixed test filter process when graphic filter changed response is now recalculated before test Fixed record meters going to spurious overload when input signal equals zero 8th November 2004 Version 3 1 released Changes Version 3 1 from Version 3 0 You can now use an external command line encoder as an alternative to the built in ogg and ape encoders This will most likely be used with the popular mp3 encoder lame exe although other command line encoders can also be used if desired The Batch processing window now has an additional scale option This enables you to apply a selectable amount of gain or loss to all the files being batch processed When clusters of click corrections overlap they are now processed in the order of their severity ranking This overcomes a problem when editing corrections in such circumstances In previous versions edits were not always preserved after the Apply button was selected Various improvements have been made to the Record dialog These include the addition of Windows mnemonics and ToolTips the option to select a stop time instead of a duration the option to auto start a recording the recording directory is now saved to the registry for
44. ck boundary could be moved When switching back and forth between Track Boundary View and Click Correction View the scale is now memorised Track Boundary view is now scaled in seconds per division and multiples thereof The track list in the Tracks menu has been lengthened to a maximum of 20 items Keyboard shortcuts have been added for various commonly used functions After inserting a manual correction the program now immediately launches adjust mode to fine tune the position of the insertion The insert correction confirmation dialogue is now optional To act as an additional warning the screen background colour now changes to blue when in insert or adjust mode Aborting adjustment of a newly inserted correction now deletes the correction Restrictions on use of unregistered version have been relaxed to allow trialling of track detection The help file has been updated Other minor bug fixes December 1999 Version 1 0 released 98
45. ck s from marker If a track is currently selected see selecting a track these commands play that track If no track is selected then the entire wave file is played When Wave Corrector gets to the end of the track it loops back to the beginning and continues playing To cancel playback select the Cancel Command either via the tracks menu or by selecting the toolbar button or by pressing the Escape key During playback you can jump immediately to any point in the track by left clicking the mouse in either the overview window or the main window Playback continues from that point Also you can use the backspace key to skip back about 2 seconds By default these commands play the corrected file To play uncorrected hold down the Shift key when you select the command The second status bar pane from the left indicates whether the original or corrected version is being played You can instantly switch between versions by clicking over this pane with the mouse Shortcuts Toolbar Play from start Key P Toolbar gt Play from marker Key Space Bar 78 Audition Track Boundary Command Tracks Menu Use this command to audition the placement of a track boundary For an end of track marker playback starts at the left hand side of the main window and stops at the marker For an start of track marker playback starts at the marker and ends at the right hand side of the main window You can alter the placem
46. cting as many clicks as possible whilst at the same time not being triggered by musical forms resembling a click When this balance is incorrect the result will be false negatives the failure to detect a click even though it is audible to the human ear false positives detecting and modifying parts of the music which the ear does not perceive as a click acombination of both the above Wave Corrector s advanced features help to overcome these limitations False Negatives False negatives are relatively rare with Wave Corrector However if a click has slow rising and falling edges then Wave Corrector may fail to identify it particularly if the click detection threshold is set at a relatively insensitive value These missed clicks can usually be tracked down by using Wave Corrector s Block Re scan operation However if this does not work it is possible to manually insert one or more individual corrections This is quite difficult because you need to learn how to visually identify a click from the shape of its waveform Having identified it you then insert a correction precisely over the centre of the click and adjust the width to obtain the optimum audio quality See Inserting New Corrections for a description of this process False Positives False positives are rather more numerous than false negatives but they are much easier to deal with The vast majority can in fact be ignored since they impart only minor changes to the
47. cuts Key Tab Key Numeric Keypad Plus Find Correction Corrections Menu Use this command to invoke the Find Dialogue that allows you to specify search criteria to be used by the Find Next and Find Previous functions Find Correction xi Find ccrrections meeting these criteria Find Next Magnitude 30 red Find Previous Magnitude 15 red yellow Custom Limit 2 C r Cancel C magnitude e C Hie User Cor It blue Cut Marker dk blue Cue Marker white Timed Jump 333 seconds 72 You can search for corrections based on the various criteria Magnitude 30 Magnitude 15 Custom Limit User Corrections Cut Marker Cue Marker Timed Jump Shortcuts Find a correction whose magnitude is 30 or greater These corrections are shown in red in the correction list This option is the equivalent of the Find Critical Correction command in previous versions of Wave Corrector This is the default criterion for searches Find a correction whose magnitude is 15 or greater These corrections are shown in yellow or red in the correction list Use this option to set your own magnitude limit Find a user correction User corrections are those which have been manually entered and are shown in blue in the correction list Find a cue marker Cue markers are created when you press the TAB key during track playback and are shown in white in the correction list They
48. dio com Ogg Vorbis ogg format and flac format support is provided using publicly distributed libraries copyright of the Xiph Org Foundation Further information including source code of the libraries can be found at the official Xiph Org Foundation website at http www vorbis com The Fast Fourier Transform routines used in Wave Corrector are based on the General Purpose FFT library written by Takuya OOURA The source code can be found at http www kurims kyoto u ac jp ooura Sample rate conversion is derived from the program SSRC written by Naoki Shibata Homepage http shibatch sourceforge net e mail shibatch users sourceforge net Source code including the derived Wave Corrector code is contained in the archive http wavecor co uk class SSRC zip Wave Corrector s installation package has been generated with Jordan Russell s Inno Setup program Download at http www jrsoftware org Ganymede Test amp Measurement gratefully acknowledges the work of these authors 88 7 4 Version History 10th October 2011 Version 3 7 released Changes Version 3 7 from Version 3 6 Support for FLAC format files is now built in The program now processes all non standard tags found in FLAC input files Re sampling is now supported using algorithms by Naoki Shibata ssrc Multitrack files can now be normalised on a per track basis Program settings can now be saved to file Batch settings and Save settings can now be optionally
49. e Separate traces are shown for the left and right channels In the following illustration a spectrum is shown where a click is present on the right channel red and not on left channel green Original C Corrected In Spectrogram view an entire sequence from the wave is shown in a single image In this view the x axis represents time the y axis represents frequency and the colour of a point represents its amplitude In Spectrogram view a click is usually visible as a vertical bar of a single colour Original C Corrected Gain Colour j The Spectrum and Spectrogram views are displayed in the bottom Overview window when they are selected Use the View Overview command to revert to the normal Overview display 33 4 10 Block Operations Block operations are available from the Block menu on the main menu bar Block operations enable you to perform corrections and other tasks on a portion of the wave file rather than on the entire file To create a block drag with the mouse in the main window over the area you want to process The block will be highlighted in blue and corrections in the block are indicated by blue vertical line in the correction list Note having selected a block you can fine adjust the edges of the block or move the entire block to the left or right by dragging with the mouse To cancel a block click with the mouse anywhere outside the block Note to avoid accidentally cancel
50. e file click Create New This will enable you to navigate to a new position Note the noise profile block must be in the range between 0 1 and 1 0 seconds The program will not let you select a block outside this range To read more about noise profiles see the section Noise Profiles For shellac records you can specify a dual profile Select a profile for the lead in period of the record and a second profile for the lead out See Processing Shellac Records for more information about this povio o S N Block Help Kol AR S pln Al xama M Edit Noise Profile Adjust the position or width of the block to ensure that it contains no music and only noise Use Create New to cancel the current profile and to set up a new one create Now gt uj cancel Dual Profile for Shellac Discs Enable LeadIn Lead Out 00 03 551 00 03 951 00 04 351 xi 68 Status Command Waveform Menu This command shows the status of the currently loaded file It lists the number clicks corrected the number of tracks found the filters which have been applied and any amplitude changes which have been applied 6 4 Corrections menu commands Remove Current Stereo Left Right Channel Adjust Insert Shrink Cut amp Splice Insert Cue Find Find Next Previous List Audition Commands Original and Corrected Cancel Playback Remove Correction Command Corrections Menu Use this c
51. e for descriptions of the detection parameters available When running re scan you have the option to preserve any manually entered user corrections Similarly you can preserve any cut amp splice blocks in the waveform Note You cannot use this command after digital filtering has been applied eg the hiss filter Therefore make sure your click corrections are satisfactory before applying any digital filters Alternatively you can use the Remove Filtering command to restore the Re scan Clicks capability m Click Threshold 3 Off Min Ma IL Cancel Do NOT Remove v User Corrections MV Cuts All corrections will be deleted The entire file will be re scanned for clicks For Advanced Options click here for expert users only Advanced gt gt Toolbar Button amp Super Scan Clicks Command Waveform Menu The source file is automatically scanned by Wave Corrector when it is first loaded This command enables you to re scan for clicks if the results of the original scan are unsatisfactory The command is similar to Re Scan Clicks except that the original corrections are not removed before re scanning the new corrections being superimposed upon the existing corrections 57 If you have a very crackly recording set the number of passes of super scan to a value greater than one Each pass of the super scan detector removes residual clicks Selecting the comma
52. ear an existing correction Wave Corrector will lock on to that correction and it will become selected During playback you can click in this window to play from a new position You can audition the contents of the window by clicking the right mouse button and selecting the audition command from the context menu You can select a block for special processing by holding down the left mouse button and dragging with the mouse The selected block is highlighted in blue 2 2 The Main Window Track View 02 30 640 02 34 640 02 38 640 00 01 146 00 05 146 This window displays a magnified section of the file in the form of a histogram representing the audio amplitude The track colours correspond to the track colours in overview window at the bottom of the display When a track boundary is selected a vertical white line denotes the position of the boundary A vertical black band indicates the gap between the end of one track and the beginning of the next At the top of the display a horizontal bar indicates the track fade in or fade out settings together with a pre or post track silence period The triangular part of the yellow bar denotes the fade period the hatched red bar denotes the silence period Note If Track Boundaries are gapless See Options Dialogue there is no inter track gap and the track boundary is indicated by a thick black vertical line Also in this mode track fade and silence settings will be ignored except
53. ed when scrolling the display or changing resolution The following bugs were fixed An error no longer occurs if both left and right channels are disabled during playback The Restore Session command no longer crashes when a block has been cut from the extreme start of the file 3rd March 2002 Version 2 31 released Changes Version 2 31 from Version 2 3 It is now possible to select a block form the Overview Window The Test Filter function now remembers if the filter has already been tested The following bugs have been fixed The Cut Splice hatched area now displays correctly with all display drivers The program no longer crashes if you switch position during playback The program no longer crashes if you select all tracks from menu after a block has been cut from the extreme start of the file Other minor bug fixes 93 5th December 2001 Version 2 3 released Changes Version 2 3 from Version 2 21 A new cut and splice feature has been implemented This enables the user to cut out arbitrary sections of the wave and the program cross fades between the sections immediately before and after the cut The normalise function now ignores inter track gaps and cut sections when looking for the peak signal level In addition the program now re searches for the peak after the wave has been edited The channel balance dialogue now measures the average unbalance between channels and offers an auto balance option The operation of the
54. en save all tracks to one file was selected A GPF could occur when Next Critical was selected from the corrections menu 4th January 2000 Version 1 1 released Changes from Version 1 0 The following reported bugs were fixed Scanning was truncated for some wave files longer than about 25 minutes Final Track was occasionally truncated especially if track length was less than 30 seconds Temporary files were not always be deleted when a new wave file was loaded The following features were altered added A much improved track management interface has been provided Track View is now clearly 97 differentiated from Correction View by means of a time versus amplitude histogram display including Track number labelling and track colours corresponding with the overview window The Overview Window display now also takes the form of a time versus amplitude histogram The position of the mouse pointer in the overview window is displayed as Minutes and Seconds in the Status Bar right most pane Feature present but undocumented in version 1 0 Options and Current directory are now saved to the registry and hence maintained across sessions A Restore Defaults button has been added to the Options Dialog The correction algorithm at low sensitivity settings has been improved Track start and end points are now adjustable even when the input file consists of a single track In Version 1 0 at least two tracks needed to be present before a tra
55. enable you to mark a particular point to return to later Find a cue marker Cue markers are created when you press the TAB key during track playback and are shown in white in the correction list They enable you to mark a particular point to return to later Use this option to move forward or back by a precise timed interval This option is provided to help locate the remnants of repeating clicks on vinyl records Pre sets are provided for the three common turntable speeds or for greater precision you can enter your own value Toolbar a Find Correction Find Next and Find Previous Correction Commands Corrections Menu Use these commands to jump forward or back to the next correction that meets the search criteria Search criteria are set using the Find command Shortcuts Ca Toolbar amp Find Next Correction o Toolbar al Find Previous Correction 73 List Corrections Menu Use this command to specify which corrections are displayed in the correction list x Specify which corrections will be displayed in the correction list Cancel C All Corrections Cancel Only corrections with magnitude 30 fred C 15 yelllow red Custom Limit 20 This command is useful when Wave Corrector generates a very large number or corrections You can make the list more manageable by restricting visibility to only those corrections larger than specified limit If you are running under Windows 9
56. ent of a marker by dragging it with the mouse while holding down the left mouse button Confirm the new position by selecting Apply in the Confirmation dialogue Shortcuts Toolbar Es Audition Track Boundary Pause Tracks Menu Use this command to pause playback Use the command a second time to resume playback Shortcuts Toolbar A Pause Key Space Bar Key Numeric Keypad Del Skip Back Tracks Menu Use this command to skip back 2 seconds during playback This is useful to repeat a section that you have just heard Shortcuts Key Backspace Key Numeric Keypad Enter 79 Fade Type Tracks Menu Use this command to select the type of fade to be applied at the start and end of tracks The options are linear or logarithmic Linear is a more gradual type of fade whereas logarithmic mimics the turning of a typical volume control Fades are applied using the Properties command or directly in the Track Boundary View window Gapless Tracks Menu Use this command to force zero length gaps between tracks When gapless mode is in operation you cannot insert fades or silent sections at the boundaries There is an exception to this rule at the start of the first track and at the end of the last tracks For these special boundaries you can insert fades and silences even in gapless mode Use gapless mode when you require a seamless transition between tracks See Gapless Tracks for more in
57. erefore to run the click filter for several passes to remove most of the impulsive noise and then to run the hiss filter at its gentlest 8dB setting to mop up some of the remaining noise Large diameter shellac records will have a noise profile that varies as the record plays This is because the stylus velocity increases as it travels towards the centre of the record This causes the noise spectrum to skew linearly with time To accommodate this effect Wave Corrector allows you to specify two noise profiles one at the start of the record and another at the end The program calculates a moving average of these two profiles to provide an optimum match of the surface noise Use the Waveform Edit Noise Profile command to set a dual profile When recording shellac records if possible run your turntable at a lower speed eg 45rpm and use Wave Corrector s speed conversion feature to compensate for this This allows you to make a recording with a lower stylus velocity and hence lower distortion 3 17 The Graphic Equaliser As well as its regular filters Wave Corrector also provides a more versatile graphic equaliser filter This allows more advanced users to define their own filter to cope with special situations The frequency response of the graphic filter is defined by 256 equally spaced points on a frequency axis spanning 0 to 22kHz Each of these points can be individually set by the user The most common uses for this filter will be
58. f you want the maximum possible volume set the slider to OdB The default setting is 1dB which corresponds to the volume of typical commercially produced CD s If you want to see or audition the section of the file where the maximum sample occurs use the Waveform Goto Max command This centres the display on the maximum sample but does not invoke the normalise dialogue Note it is quite usual for some tracks of an LP to be louder than others Using the Normalise command preserves these differences while raising or lowering the overall volume If you want to normalise tracks individually you can do so by using the Normalise option in the Save Window You can adjust the left right channel balance using the Waveform Channel Balance command The command shows the average imbalance between the channels as a decibel value If you choose auto balance a correction is applied to bring the average channel amplitude into balance Alternatively you can manually select a re balancing value to apply using the slider You should be aware that some stereo recordings are deliberately unbalanced Therefore you should use the auto balance option with caution 3 14 Digital Filtering Wave Corrector provides five different digital filters that can be used to correct deficiencies in either vinyl or tape cassette source recordings The filters can be applied singly or in any combination The following filters are available Hiss Red
59. file sampling rate adjust the sampling rate for records played slow eg 78rpm records played at 45rpm Record File F Test Waves xy1 way Information Timed Recording 1 30 Hrs Mins Time Recorded 0 13 Time Remaining 1 29 47 Stop Peak Level 1 2 dB at 00 07 Device Realtek AC97 Audio Devices __ Override Record level Scan Now EEC sese i TT I Clear Peak o Doe Overload Aux Monitor Sample Rate Start Stop Options icy 44 1kHz Default RD C 480kHz C 24 bit 88 2kHz C Auto on Signal C 960kHz Duration Cm 01 30 r Speed Conversion gt ms m Eal No Conversion Default Start Time Stop Time Delayed g p E C 78 45 Conversion E Hui fi 1 55 fi 3 25 EM C Custom Conv 1 000 1 46 Shortcuts Toolbar e Keys CTRL R The Record window is divided into the following areas Volume Level Meter The volume level meter consists of a pair of moving bars indicating the per channel amplitude in decibels relative to the digital clipping level The bars are colour coded according to the following criteria Green below 6dB Yellow 6 to 3 dB Orange 0 to 3 dB Red OdB A pair of overload indicators latch red when clipping level is reached A pair of blue markers hold the peak readings since the last reset Use the buttons as follows Set Volume Reset Peak Call up the Windows Volume Control applet Use the applet to select t
60. files of the appropriate type See File Types for the loading restrictions To open a file for processing select the File Open File command If a file is already being processed you will be prompted whether to save or discard any outstanding corrections Note Wave Corrector also provides the File Restore Session command This command is used to restore a complete list of click corrections and track boundaries together with filter and volume settings See Saving Your Work for information on how to save a session file 18 3 7 Setting the Auto Scan Options Wave Corrector automatically scans the source file when it is first loaded or immediately after it is recorded if you select the Scan option Note if you find the results are not satisfactory you can re scan for clicks or tracks correct the volume or apply a range of digital filters via the Waveform menu However the bulk of the work is done for you automatically by Wave Corrector Auto scan is performed according to a range of options that are available to the user The options available are summarised below Source Type The source type of Vinyl or Tape can be selected Vinyl enables click detection and correction tape enables the hiss filter Note if you wish to apply both click correction and the hiss filter you should select vinyl and after the file has been auto scanned manually apply the hiss filter via the Waveform menu or use the toolbar bu
61. formation about this subject Properties Command Tracks Menu This command enables you attach text information to a track You can also to set fade in and fade out times and pre or post track silence periods Track Properties EE xl Album Title Genre Ronnie Aldritch Magnificant Pianos Popular 8 Len Title Ans S FA roo s 1 2 42 Ebb tide Ronnie Aldrich 00 00 05 00 2 241 The very thought of Ronnie Aldrich 00 03 04 00 3 2 19 I ll seeing you Ronnie Aldrich 00 07 04 00 4 254 Lowe letters Ronnie Aldrich 00 03 03 00 Use Defaults 5 2 35 Long ago and far aw Ronnie Aldrich 00 05 04 00 6 2 48 How deep is the oce Ronnie Aldrich 00 05 11 03 Artist Timings Default Values o Artist Not Set Timings Pre Silence S l 0 5 Fade Out F O 1 0 Change Cancel Fade In F I 1 0 Post Silence S O 3 0 80 The dialogue lists all the tracks in your project and shows the track running times together with the text information tags that apply to each track As well as these track tags you can also enter an album title and a genre These tags will be applied to all tracks Settings for fade in out and pre post track silence periods are shown in the right hand columns To alter the settings for an individual track highlight the track and click the Edit button You can also use this dialogue to set one or more tracks to the program s default values To do this highlight the tracks you wish t
62. gnitude of the underlying click as determined by Wave Corrector If a track has been selected the timestamp shows the time measured from the start of the track 00 14 ae P 00 14 492 Mrkr d otherwise it shows the time from the start of the wave file 00 14 518 0 00 14 778 1 mM WES 3 The currently selected correction is indicated by the blue arrow 0014804 5 0214 04 dy The corrections are colour coded according to the expected click magnitude 00 15 550 0 i arie d The colour code is as follows 00 15 881 1 00 15 966 Cue i 00 15 966 2 High Magnitude Red oesie 1 Magni XB ne i D 0017228 12 Low Magnitude Green 00 17 228 User 0017220 2 sl User Entered Lt Blue Cut Section Dk Blue Marker White Track Boundary Grey Shortcuts from this window You can select a correction or track boundary for viewing or auditioning by clicking over it with the left mouse button You can step between listed corrections using the Up Down cursor keys To step between all corrections including unlisted ones use Shift Up Down You can select a block of corrections as follows select the first correction in the block then hold down the shift key and select the last correction in the block The entire block will be selected 2 5 Control Bar The Control bar to the left of the main window provides the following controls for scaling and Display CR Cursor Position 05 28 398 Playback Speed
63. hanced to allow multiple passes When you adjust an existing correction it is now marked in the correction list as a User Correction When re scanning for clicks either a block or the entire file it is now possible to preserve user corrections and cut and splice sections There is now a command and a keyboard shortcut to skip back a few seconds during playback The Test Filter dialog can no longer move around independently of the background Filter Dialog Files saved by Wave Corrector have had their format changed slightly by removing a copyright message from the end of the file A new Auto Save feature has been added for session files Other minor enhancements 22nd July 2002 Version 2 4 released Changes Version 2 4 from Version 2 31 A new Pause command has been added including a toolbar button The Test Filter function has been improved and now allows immediate comparison of the waveform before and after filtering The Time Display window now shows current time during playback The Time Display is now calculated relative to the start of the current track The View Signature option is now saved between sessions The auto shut off and timed recording options are now saved between sessions Space Bar and Shift Space Bar now act as Keyboard shortcuts for Play Track s Corrected and Original and Pause When zoomed out beyond 1 second per division the display now shows peaks more accurately Block boundaries are now preserv
64. he input you want to record from usually Line In and to set the recording level Hint Use Ctrl S to toggle the applet between normal and compact mode Compact mode takes up significantly less space on your desktop Vista Windows7 Users Under Vista and Windows7 this command opens the Sound Recording Devices window When this appears double click on your recording device eg Line In to bring up its properties Then select the Levels tab to select its volume control Reset the blue Peak Hold indicators and the Red overload indicators 47 Record Command Buttons The following command buttons are provided Record Start Recording Note this button becomes a pause continue button once recording has commenced Stop Recording Override When using one of the automatic recording modes this button allows for manual override of the start and stop functions Scan Now Scan the recorded file for tracks and clicks or to remove hiss Done Exit the recorder without scanning Note the file is saved and can be scanned later if required Aux Monitor Monitor the recording source NB only use this option if you are using a separate soundcard for recording eg a USB sound capture device Record Options Four recording options are available Continuous causes recording to continue until you press the Stop button Auto on Signal causes the recording to automatically start when the input signal exceeds
65. hiss hum filter has been improved The filter now uses independent noise profiles for the left and right channels This improves performance in situations when there is significant noise imbalance between the channels The Record Dialogue now includes the option to call up the Windows Volume Control applet to select your recording source and to set the recording level Track boundary fades can now be specified as either linear or logarithmic It is now possible to adjust the size or position of a block without having to cancel and re select it You can now make multiple contiguous selections from Correction List The Left and Right channel buttons now control playback as well as the display During playback you can now click in the main display to move immediately to a new position A new means of inserting cue markers has been introduced The display of track markers in the main display has been improved to include track numbers In addition the main display now shows cue markers The method of switching the Overview Window between a single track and all tracks and has been changed Instead of double clicking in the window you now single click over the Track Number indicator This enables you to change the view without changing position in the file The following minor bugs and other problems have been fixed The program no longer crashes if you attempt to change the horizontal scale with no file loaded The program no longer crashes
66. hite You can also insert cue markers during playback mode During playback press the TAB key at any time to generate a new Cue Marker You can freely insert markers in this way until you cancel playback Note that during playback you can jump back or forward for example to repeat a section by clicking over the point you want to jump to in the overview or the main window If you just want to jump back a few seconds you can use the Backspace or Enter key shortcuts Cue Markers are converted to ordinary user corrections when you use the Adjust Insert command They are converted to Track Boundary markers when you use the Split Track command 32 4 9 Spectral Methods for Finding Clicks Wave Corrector provides two methods to manually find clicks using spectral analysis of the wave Musical forms tend to consist of discrete frequency peaks usually with a harmonic relationship ie the peaks tend to be evenly spaced across the frequency range Noise on the other hand has no coherent structure and all frequencies tend to be present in approximately equal amounts These characteristics can help you recognise a noise event when it is not obvious from the waveform display in the main window Wave Corrector provides a simple spectrum view and the more informative spectrogram view The Spectrum view shows the frequency spectrum at a single point in the file In Spectrum view the x axis represents frequency and the y axis represents amplitud
67. ic Filter Editor Graphic Filter Editor notch 2 xl 10 LLL LL DL LL DL LL EERE lllll 10 Jes Ex j EETL PL tt th j LLL IM ae 40 LF Expand Freg 10 62 Level 0 00 Pe Select Existing Filter or Create New Filter Save New Filter Enter Name Below notch Update notch Delete Filter Undo Changes o To add a new point to the graph click with the left mouse button at the new position To move an existing point drag it while holding down the left mouse button To delete a point click over it with the right mouse button 66 You can also use the keyboard to edit the filter as follows Cursor Left Right Select Point Delete Delete selected Point ee Inset point to the left of currently selected point Ctrl Cursor Up Down Ctrl Cursor Left Right Move Currently selected point vertically Move Currently selected point horizontally Use the LF Expand button to display the bottom 10 of the spectrum If you are editing an existing filter click the Update button to save your changes Alternatively create a new filter by entering a new name in the edit box on the right and clicking Save Use the Delete Filter button to remove an existing filter from the drop down list Replace Superimpose Filters Replace Existing causes Wave Corrector to remove all existing filtering before applying the filter s you have selected Superimpose does not remove any existing filtering
68. if you set the default boundary parameters when no file is loaded The program no longer allows you to merge tracks while a track boundary adjustment is in progress 28th May 2001 Version 2 21 released Changes Version 2 21 from Version 2 2 A bug which affected the normalise function has been fixed The status window now shows correct data after multiple filters have been applied Other minor bug fixes 14th May 2001 Version 2 2 released Changes Version 2 2 from Version 2 11 It is now possible to search forward or backward to find corrections that meet user defined criteria The Correction List can now be customised to show only correction greater than a given magnitude The program can now process files with more than 32000 corrections under all operating systems It is now possible to customise the start and end of tracks with fade and silence settings The Cancel Scan Feature has been improved with additional options Keyboard shortcuts have been added for various functions The Status Bar Tracks pane now shows the Track number as the Mouse pointer moves over the All Tracks display in the Overview window Bug fixes 94 Some previous versions would not run under versions of Windows 95 prior to OSR2 This problem is now fixed A bug which caused some track boundaries to be slightly misplaced has been fixed Some resource and memory leaks have been plugged 27th February 2001 Version 2 11 released Changes Version 2 11
69. ines have been completely rewritten Track detection is now much more reliable and there is now the option to give the program a target number of tracks to find The click scanning options have been revised and expanded This gives additional scanning and correction options for advanced users The signature line is now displayed in the main window as well as the overview window This permits clusters of corrections to be identified more easily The graphic equaliser has been considerably enhanced There is now the option to expand the bottom 10 of the frequency range and the filter can now be configured with the keyboard as well as the mouse The filter also now correctly takes account of the sampling rate and adjusts itself accordingly In spectrum view the frequency scale is annotated with values scaled for 44 1 and 48kHz sampling as appropriate Maximum width corrections are now always given a magnitude greater than 30 Minimising is now possible during loading and recording A new Cancel Block command has been added A new command has been added to convert cue markers to track markers Now tests for ape version 3 97 when loading ape files Drag drop to the batch window has been improved The program now checks for valid audio files and allows the dragging of nested folders Track information in the Overview window is now provided by floating ToolTips When the main window is in Track View the display is now scaled logarithmically to mat
70. interface Inter track gaps are now shown in grey in the overview window When scanning is cancelled by the user there is now an option to continue loading the file without scanning for clicks Selecting a block you can now drag the mouse beyond the edge of the screen The Overview trace is now forced to minimum height of 5 pixels This renders it always visible The screen no longer flickers during adjustment modes The Overview window scale indicator no longer moves with the cursor during play modes The remaining changes affect the internal operation of Wave Corrector Automatic track detection is now more accurate and more reliable The track boundary detector now automatically compensates for the presence of rumble Processing is now faster for short and medium length files Minimum Track length is now 5 seconds 96 A Track 1 is now always generated even if no tracks boundaries are detected Recording mode is now given a higher thread priority to prevent buffer overruns The screen drawing routines are now compatible with all display resolutions The track boundary list is no longer corrupted after manual adjustments It is now always possible to select a track by clicking in the Tracks menu The program no longer crashes due to file size buffer size conflicts Surrounding corrections are now regenerated correctly when a correction is deleted 8th April 2000 Version 1 21 released Changes Version 1 21 from Version 1 2 Record
71. ld always ensure that your recordings include a few seconds of lead in or lead out In this way you will help the program to locate a suitable profile There are certain types of recording however that it is not possible to auto profile An example is a live concert that starts with applause Applause has very noise like characteristics and it is likely to be mistaken by the program for actual noise As in the example above this will result in the program over correcting the noise and causing artefacts If the program cannot find a suitable profile it issues a warning that the profile may be unreliable If you see this warning or if you are at all suspicious that your recording may not be suitable for auto profiling then you should check the validity of the auto profile and manually create a new one if necessary To check the auto profile use the Waveform Edit Noise Profile command This will centre the main display con the current profile and enable you to audition it If the auto profile is unsatisfactory you can move its position to somewhere more suitable 3 16 Processing Shellac Records Shellac records usually 78 s are more difficult to process than vinyl because there is a greater amount of surface noise This type of noise is particularly difficult to remove because it is too continuous for the click to detector to be fully effective but too spiky for the hiss filter to be fully effective 26 The best technique is th
72. le Merge Open Batch Open Save Save amp Close Restore Session Save Session Auto Save Session Session File Properties Record New Wave File Paths Devices External Encoders Load Save Settings Open File command File menu 37 Use this command to open a new File for processing in Wave Corrector Wave Corrector displays the Open File dialog box so you can select the wave file you want to open During loading Wave Corrector will automatically scan the file for track boundaries If the source type is vinyl it will also scan for clicks and corrections will be generated If the source type is tape then the hiss filter will be applied Note if you have previously saved a Wave Correction session you can continue working on the file with the Restore Session Command Shortcuts Toolbar Keys CTRL O Merge Open Files Use this command to merge two or more wave files prior to processing For example if you make two separate recordings of the two sides of an LP you can use this command to combine them into a single file The order of the files to be merged can be changed by dragging with the mouse The program automatically places cue markers at the file junctions Note this command can only be used with stereo wave files wav and all files to be merged must share a common sample rate 44 1 or 48 kHz e Merge Open Files xj Files to Merge Drag file
73. ling a block hold down the CONTROL key during block adjustment To modify the corrections within the block use one of the following three functions Remove Corrections removes all corrections from the block Re Scan removes all the existing corrections from the block and re scans it using the parameters you supply when you select the option Super Scan is the same as re scan except that it superimposes the new corrections on top of the existing corrections rather than removing them first Note These operations are not possible after digital filtering has been applied eg the hiss filter Therefore make sure you have finished editing corrections before applying any digital filters Alternatively you can use the Remove Filtering command to restore the block command capabilities There is also a Block command called Cut and Splice This command removes the entire block from the waveform and cross fades between the sections immediately before and after the block The command is named after the customary practice of audio engineers to physically cut a section from an audio tape and then splice the tape back together Shortcuts Whenever a block is selected you can right click the mouse to activate a menu of block options 34 5 Managing Tracks 5 1 Selecting a Track or a Track Boundary Selecting a Track Once the source file has been scanned a list of the detected tracks is appended to the bottom of the Tracks Menu To selec
74. m data and is necessary if large volumes of audio are to be permanently stored on hard disk There are two types of compression that can be used Lossless compression permits a bit perfect copy of the original wave file be to recovered Hence lossless compression is preferred by users who want to retain the maximum possible fidelity in their recordings Lossy compression on the other hand uses psycho acoustic processing to produce smaller files than can be achieved with lossless compression Lossy compression will degrade your audio files to some extent but the degradation is very little if a sensible compression ratio is applied Wave Corrector will load files in the uncompressed Microsoft wav format and the losslessly compressed formats flac and ape format Lossy compression formats are not supported for loading Files loaded into Wave Corrector must also conform to the following requirements 1 Bit depth 16 or 24 bits 2 Sampling Rate 44 1 48 88 2 or 96 kHz 3 1or2 channel ie mono or stereo For saving Wave Corrector uses the above wav flac and ape and also the Ogg Vorbis ogg format Ogg Vorbis is an open source audio compression system similar to MP3 but without the licensing restrictions imposed by the MP3 patent Independent tests have also indicated that Ogg Vorbis produces better audio quality than the common MP3 encoders Ogg Vorbis is open source and is free of digital rights management issues which can compromise libr
75. mented for tape cassette and or vinyl source correction The Normalisation function has been enhanced This function is now selected via the main menu and can be applied to any wave file A Left Right Channel Balance Control has been added A horizontal scroll bar has been added to the main window to enhance waveform navigation The Record Dialogue now includes the options of a record timer and auto shutoff The Overview window now uses a logarithmic vertical scale and represents the waveform more accurately 23rd August 2000 Version 1 26 released Changes Version 1 26 from Version 1 25 A faster set of FFT routines have been implemented These have resulted in corrections being generated several times faster than previously It is now possible to restore a session file when the associated wave file has been moved to a different location Also read only session files are now supported Temporary files are now stored in the system TEMP directory Minor enhancements to the user interface 95 Bug Fixes In previous versions very amplitude high frequency content caused the program to generate large numbers of spurious corrections This is now fixed The Block Remove Corrections command now completely removes all corrections in the block Previously remnants of the deleted corrections were sometimes still present Other minor bug fixes 11th July 2000 Version 1 25 released Changes Version 1 25 from Version 1 24 Compatibility has
76. ments to corrections A correction can be made wider or narrower and it can be shifted to the left or the right By these means the audible artefacts of the correction can be minimised During adjustment use the Audition commands to optimise your result 42 What are Click Corrections When Wave Corrector detects a click it removes it from the waveform and substitutes a replacement waveform In Wave Corrector this replacement waveform is called a Click Correction Each Click Correction has a unique timestamp and is recorded in the Correction List at the right hand side of the program window A light yellow band at the centre of the main display indicates the width of the selected correction Click Corrections can be auditioned and adjusted via the user interface To select a Click Correction for audition or adjustment use one of the following methods 1 Click over the required correction in the Correction List 2 Click over the required correction in the Overview Window 3 If a non selected correction is visible in the main window double clicking over it will cause it to be selected You can also step through the correction list with the Cursor Up Down arrow keys Once a correction has been selected it appears at the centre of the main window Depending on the width of the correction and the amplitude of the waveform you may need to alter the horizontal or vertical scale using the Control Bar controls to optimise your view Yo
77. mmand The following tokens are used for rule generation TITLE ARTIST GENRE ALBUM INPUT Whenever a token is encountered in a file naming rule it is replaced by the corresponding tag from the track s properties An example will illustrate the application of a file naming rule Suppose you have a track with the following properties Input File LK4574a wav Genre Popular Album Title Magnificent Pianos Track Title Love Letters Track Artist Ronnie Aldrich Track Number 4 The following table shows the output names generated by various naming rules File Naming Rule Output File Name INPUT cor LK4574acor04 ALBUM Magnificent Pianos04 ALBUM TITLE Magnificent Pianos 04 Love Letters GENRE ALBUM TITLE Popular Magnificent Pianos V04 Love Letters Note you can include a nest of subfolders in a rule by including backslash characters If a folder doesn t exist it will be created 23 3 13 Correcting the Volume Wave Corrector provides tools for correcting both the overall volume and also the relative volume of the left and right channels channel balance To correct the overall volume use the Waveform Normalise command This command searches for the maximum sample value in your file and displays this value relative to the maximum possible value The value is expressed in decibels Use the slider control to select the new volume level you require I
78. moved effectively using the Cut amp Splice command Cut amp Splice removes the entire click from the waveform and cross fades between the sections immediately before and after the cut To use the command centre the screen on the click to be removed and select Cut amp Splice from the Corrections menu or use its toolbar button Use the Cut amp Splice audition buttons to preview the effect of the operation By adjusting the size and position of the block you should be able to make the click inaudible It may also be necessary to alter the length of the cross fade Splice Length A short cross fade is more likely to be audible but will have minimal effect on the tempo of the music A long cross fade will produce a very smooth transition but a larger section of the music is removed 100 msec This can have a noticeable effect on the tempo and should therefore be used sparingly 4 8 Inserting Cue Markers Cue Markers are placeholders that you can add to the Correction List They are useful for marking a particular point in the waveform to return to later Cue Markers can be used to mark a point where you hear a residual click when playing back the corrected wave They can also be used for example to mark a point where you wish to insert a track marker To insert a Cue Marker use the Insert Cue command on the Corrections menu Alternatively use the TAB key shortcut The marker will appear in the Correction List highlighted in w
79. n Out to BOnn riii eiue esie esee ee brote poen nS opu o eH P ln tad ne cS aids 36 5 4 Adjusting and Auditioning Track Boundaries ccccesccsscesececeseeeseeeeeeseeecsceesseeesaeeeeeeneeeees 36 35 Playing a Track a 42 eM 36 TUS 37 ME a ECRIRE oro op oe uve IS donati mii iMac Do Date vix wepe dar disse route 37 6 2 View An Een UID CIS 52 6 3 Waveform BEES SD NETT TOTO ET 56 GA Corrections ment COMMIS CENE TTE 69 Boc Tracks menn Comins seios naen RH I C EDEN ue ew Ga ee 76 G66 Block menu commande sesinin eies ier nds ia aaa ei E TEE m 82 GF Help menu Commande TREE TE Rm 84 AW ave Conector Ba NONU 86 2 1 R gisteri ng Wave COTO E r sisis riiin EnEn EEEn P ESE EREEREER aei 86 QE DU EN NE SUDDO faces score eer erk aE E aE EKE EER e E EE EE Rein 88 7a I aiio EL RTT TEN 88 C Verion Nel ck MET E 89 1 Introduction 1 1 What Is Wave Corrector PE Wave Corrector PE is the Professional Edition of Wave Corrector Wave Corrector is a true WYSIWYG waveform corrector that automatically removes clicks ticks and plops from recordings of vinyl records before transfer to CD R It also removes hiss and corrects other audio impairments from both vinyl and tape cassette recordings Unlike conventional wave editors Wave Corrector presents the user with a graphical display of the corrected and uncorrected waveforms overlaid on each other to allow easy visual compari
80. n signal options Wave Corrector uses the Windows Volume Control applet to select the recording source and to set the recording level To launch the applet click on the Set Volume button in the Record Dialogue Check the recording source you wish to use usually line in and adjust the recording level using 20 the associated slider When setting the recording level you should take account of the performance of your sound card See Recording Tips for more advice on this subject Once your file has been recorded you can immediately scan it into Wave Corrector using the Scan Now button in the Record Dialogue Important If you are recording a tape or cassette and intend to use the Hiss Filter please ensure that you include a short lead in or lead out period Wave Corrector produces a noise profile by analysing the noise in the lead in or lead out period 3 10 Recording Tips Recording Levels To obtain the maximum benefit from Wave Corrector recording levels should be as high as possible whilst ensuring that the signal does not distort Some sound cards are unable to utilise the full 16 bit dynamic range of the system and start to clip before the maximum signal level is reached For this reason it is sensible to make some test recordings before committing your recordings to CDr If you find there is audible distortion from your sound card when recording at maximum level you should back off the recording level
81. nd activates a dialogue box for entering new scanning parameters Track markers are unaffected when you use this command Selecting the command activates a dialogue box for entering new scanning parameters See the Options Dialogue for descriptions of the detection parameters available Note You cannot use this command after digital filtering has been applied eg the hiss filter Therefore make sure your click corrections are satisfactory before applying any digital filters Alternatively you can use the Remove Filtering command to restore the Re scan Clicks capability Super Scan for Clicks 1 2 xl prs ae 3 NE Cancel m Super Scan Passes New corrections will be generated and superimposed on top of existing corrections For Advanced Options click here for expert users only Advanced gt gt Re Scan Tracks Command Waveform Menu Wave Corrector automatically scans the source file when it is first loaded This command enables you to re scan for track boundaries if the results of the original scan is unsatisfactory All the existing track boundaries are removed before re scanning begins Click corrections and digital filtering are unaffected when you use this command Selecting the command activates a dialogue box for entering your scanning options 58 Re Scan for Tracks E 21 x All existing tracks will be deleted and new tracks will be generated Cancel Target Track C
82. ntion by the user To set up a batch job select the File Batch Open command Any combination of the following tasks can be included in a batch job Click removal Digital filtering Normalising Channel balancing Trimming silence Re sampling Converting format You cannot do track splitting as part of a batch job as the process is designed to work with single song files However it is possible to trim the silence from the start and end of each file Note batch processing is also useful even if you are only working with a single file In this case you can use Batch Open to open the single file and you can leave the program to perform the sequence you require 3 9 Recording Wave Files Wave Corrector provides the facility to record your own wave files direct from the Line In port of your soundcard Wave files are recorded in 16 or 24 bit stereo at a sample rate of 44 1 48 88 2 or 96kHz If you are going to burn CDr s use a sampling rate of 44 1 kHz or 88 2 kHz The the default sampling rate is 44 1kHz To start recording select the File Record New Wave File command If a wave file is already being processed you will be asked whether to save or discard the outstanding corrections You will be prompted to supply a file name for your new recording and then the Record New File Dialogue will appear The Record New File dialogue provides level monitoring and recorder controls with record timer and start stop o
83. o Correcting the Volume for further advice Normalise Amplitude l x Current Peak Level 9 8 dB Set New Peak level to 1 dB 4 Normalise Cancel 63 Channel Balance Waveform Menu This command allows you to vary the relative amplitude of the left vs right channels by up to 6 dB The command is provided principally to allow the correction of cassette originated recording which sometimes exhibit a channel imbalance Wave Corrector measures the average amplitude of the left and right channels to provide an estimate of any imbalance that might be present Please remember however that stereo recordings can have a deliberate imbalance between channels so this information should be treated with caution You can manually select a re balancing value or alternatively you can check the auto balance check box If you check auto balance Wave Corrector s estimated value will be used When xdB lift is applied to say the left channel the program actually increases the amplitude of the left channel by x 2 dB and decreases the amplitude of the right channel by the same amount This gives the required re balancing See also Correcting the Volume for further advice Re Balance Channels 2 xl Left Right Balance Left Right Cancel Auto Balance Estimated Correction Required Right 0 5 dB Remove Filtering Waveform Menu This command removes all digital filtering and restores the
84. o set and click one or both of the Use Defaults buttons To edit the default values click the Change button in the Defaults section of the dialogue Shortcuts EST Toolbar Track Properties Track List Tracks Menu Once the source file has been scanned a list of the detected tracks is appended to the bottom of the Tracks Menu The list shows the track number and the track duration in minutes and seconds To select a track click on it in the Tracks menu The currently selected track is indicted by a check mark next to it in the menu Shortcuts You can also select a track by clicking over the Tracks indicator in the top right hand corner of the Overview Window If a track is selected and the user selects a correction from a different track the current track is automatically updated to reflect the change 81 6 6 Block menu commands Block operations are only available when a block is selected See Block Operations for more information on selecting and using blocks Remove Corrections Re Scan Super Scan Merge Tracks Cut amp Splice Play Block Cancel Block Remove Corrections Command Block Menu This command enables you to remove all corrections from a block and to restore the original waveform A confirmation dialogue prevents you from accidentally removing a block of corrections This command is only available when a block is selected See Block Operations for more information on
85. om of the display See Spectral Methods for Finding Clicks for more information on this command Show Spectrogram View Menu Use this command to show a spectrogram of the signal in the main window The spectrogram is displayed below the main window in place of the Overview The spectrogram provides a powerful method to locate elusive vinyl clicks See Spectral Methods for Finding Clicks for more information on this command View Signature View Menu Use this command to display or hide the correction signature in the overview window The correction signature is a thin red line that can be displayed at the top of the Main window and in the Overview window It indicates the rate at which Wave Corrector is making corrections A rise in the signature during a medium or loud passage usually means that the click detector has mis fired due to the music content Such areas of the file can be auditioned and unnecessary corrections deleted as required Alternatively the click threshold could be reduced during these periods using the block re scan function 53 See under False Positives in Understanding Click Concealment for more advice on using the correction signature View Grid View Menu Use this command to turn on or off the Grid in the main window View Scale View Menu Use this command to turn on or off the Scale in the main window Show Track Times View Menu Use this command to toggle
86. ommand to remove a correction from the correction list and to restore the original waveform A confirmation dialogue prevents you from accidentally removing a correction Shortcuts Toolbar x Key Delete Stereo Left Right Channel Command Corrections Menu Use this command to selectively remove a correction from the left or the right channel First select the correction you want to modify from the correction list and then select the left or the right channel command The correction for that channel will be removed Selecting the command again will restore the correction 69 Adjust Insert Command Corrections Menu Use this command to adjust the placement and width of a correction The command is also used to manually insert a new correction If an existing correction is selected when you invoke this command then that correction will be adjusted Otherwise the command creates a new user correction and inserts it at the current location Once you have confirmed the new correction it will appear in blue in the correction list and will be annotated User Note this command is automatically invoked when you drag with the mouse over the edge of a correction Alternatively it can be manually invoked via the menu or by clicking the toolbar button When the command is invoked the Adjust Mode dialogue appears and the main window background colour changes to mid blue To adjust the placement and or width of the correcti
87. on you can use the cursor keys or the mouse You can pick up and drag the edge of the correction with the mouse This widens or narrows it and affects the sound quality of the correction The cursor Up Down keys can be used as an alternative to the mouse The placement of the correction can be moved with the cursor Left Right keys The cursor keys on their own move the correction 1 sample at a time nconjunction with the Shift Key they move it one division at a time nconjunction with the Ctrl Key they move it half a screen at a time Alternatively you can hold down the shift key and click with the left mouse button over the required new position During adjust mode you can audition your changes in order to hear their effect by using the auditioning commands When you are satisfied with the changes click Apply in the confirmation dialogue box to make them permanent To cancel your changes click Abort Shortcuts Toolbar l Insert Adjust Key Insert 70 Shrink Command Corrections Menu Use this command to reduce the width of the currently selected correction Note this command is only available at horizontal scales of 100 samples per division or less Shortcut Key Page Down Cut and Splice Block Menu and Corrections Menu Use this command to remove a section of the waveform The selected block is removed and the program cross fades between the sections immediately before and after the
88. ount User Assisted 2 Y C Auto Detect Gapless Track Boundaries C Remove All E D isk At Once User Assisted This setting allows you to tell Wave Corrector how many tracks to aim for The program increases its track detection sensitivity until the required number is reached Auto Detect Tracks are detected automatically Remove All All track markers are removed and the file is treated as a single song Gapless Track Boundaries This setting is provided to enable the production of Disc At Once recordings on your CDr In gapless mode the end of a track is always made exactly adjacent to the start of the next track It is also positioned on a 588 sample boundary This enables the CDr burner to produce a seamless track change with no gap between tracks You can only do this if your burning software supports Disc At Once Re Scan All Command Waveform Menu This command is the equivalent or re loading the file into Wave Corrector and starting again All existing corrections track boundaries and digital filters are removed before re scanning begins Selecting the command activates a dialogue box for entering new scanning parameters See the Options Dialogue for descriptions of the detection parameters available 59 Auto Scan Options Command Waveform Menu Use this command to select the Auto Scan Options Dialogue Box The dialogue box allows you to set the source recording medium to either
89. ow displayed at the bottom of the main window It is now easier to enter track properties the track title box is pre selected when entering the edit window and the track artist is copied from the previous track when tabbing to the artist box only of box is empty You can now use the scroll wheel to zoom the main display The method of selecting and editing the noise profile has been improved There is now a dual noise profile option intended for removing background noise from large diameter shellac records The play track commands have been amended There is now the option to play from cursor as well as to play from the beginning of the track A problem with editing overlapping corrections has been fixed The waveform no longer no longer changes after a correction is applied The track detection algorithm has been further tuned The program now gives a warning when trying to save to a read only file The program now saves the default folder properly as used when saving and opening files It is now possible to view a session file properties without actually loading the session It is now possible to open a session file when the associated wave file has been renamed Bug fixes The sequence Scan Test Filter Superscan no longer causes a crash Fixed crash when selecting block in overview window when end of file exceeded 90 20th September 2005 Version 3 2 released Changes Version 3 2 from Version 3 1 The track scanning rout
90. ower line frequency 50 60Hz and its harmonics Like the hiss filter the hum filter uses noise subtraction to help avoid removing too much of the musical content However you should only use the hum filter as a last resort If there is hum present in your recordings you should make every effort to isolate and remove the cause usually incorrect grounding of one or more components in your recording set up Using the hum filter after the event will inevitably lead to some degradation of music quality The treble control filter provides up to 12dB of treble lift or treble cut You can experiment with this filter to obtain the optimum tonal balance from your vinyl tape or cassette recordings Cassette recordings in particular often need to be tonally corrected due to a mis match between the Dolby B pre emphasis and de emphasis characteristics If you find that your cassettes sound too dull or too bright you can correct them using this control You may also find that you obtain good results by recording your cassettes with the Dolby turned off and using Wave Corrector s hiss reduction and treble control combination to correct the sound Although this gives a theoretically false result it can sometimes be more pleasing with some types or source material The graphic equaliser enables you to draw a required frequency response with the mouse and have the filter applied to your wave file See Graphic Equaliser for more information 25 3 15 Noise
91. ps and corrections are generated for each aberration detected In the case of tape cassette on the other hand a digital hiss filter is applied to the wave file to remove tape noise Both click correction and hiss removal are configurable by the user and can be completely disabled if required Click corrections are displayed in the Correction List at the right hand side of the main window As you step through the correction list each correction is displayed in the main window overlaid on the uncorrected wave By selecting the Audition command you can immediately hear the before and after effect of the individual correction If a click is still audible after correction it is possible to manually adjust the correction parameters for the individual click to better match the underlying waveform During adjustment you can audition you modifications to assess their effectiveness For both vinyl and tape cassette recordings files are scanned for track boundaries and a provisional list of tracks is generated for later editing Track boundaries are detected by searching for periods of inter track silence Track boundaries can easily be moved and tracks can be customised by splitting or merging 2 The User Interface The user interface comprises the following main components The main window displays the file being processed in one of two views wave view and track view Wave View shows separate traces for the left and right channels and
92. s Compatibility with non standard wave file formats has been improved Bug fixes minimising dialogue windows now works correctly under Windows Vista A track can now share the same track title and album title Various other minor bug fixes 1st October 2007 Version 3 4 released 89 Changes Version 3 4 from Version 3 3 The program now accepts mono as well as stereo files There is a new Merge Load command to combine several files before processing External command line encoders are now automatically configured You can now load flac files including tags flac exe must be present There is a new option to monitor recordings via the internal sound card There is a new option to auto scale the vertical display The action of the scroll wheel has been reversed A drop down list has been added to the artist field when entering track properties A new Undo Volume Changes command has been added Set Volume in the recording window now works correctly under Windows Vista The help system now uses htmlhelp for compatibility with Windows Vista It is now possible to delete cue markers after filtering 25th September 2006 Version 3 3 released Changes Version 3 3 from Version 3 2 It is now possible to scroll between track boundaries This has been achieved by providing a new Irack View to complement the original Waveform View Two new buttons have been provided on the left hand panel to switch between the two views A time scale is n
93. s from marker Plays the current track from the current marker position or if no track is selected plays the entire file Pause or continue playback e Cancel playback Eg Split a track by inserting track boundary markers x Merge two tracks by removing track boundary markers Es Audition the placement of a track boundary This button is used interactively when you fine tune the position of a track boundary ES Display and or edit tags and track boundary parameters ie Jump back to the previous track boundary position Jump forward to the next track boundary position 9 l Call this help file R ae Ld Enable context sensitive help After selecting this button click over a region of the Wave Corrector window to obtain help 10 2 7 Status Bar For Help press F1 Readyto Save Clicks 558 Tr 2 of 4 Zl The status bar is displayed at the bottom of the Wave Corrector window To display or hide thestatus bar use the Status Bar command in the View menu The left area of the status bar describes actions of menu items as they are selected This area similarly shows messages that describe the actions of toolbar buttons when the mouse pointer moves over them The right hand areas of the status bar indicate in turn 1 the current Wave Corrector status Note during playback you can click in this area to instantly switch between the original and corrected wave 2 the total number of
94. s here or use the Add button yilTest Wavesllk4574a wav Add yiiTest Wavesldemo2tone wav yiiTest Waveslprofile test 2 wav Remove Ik Delete after merging Cancel 38 Batch Open File Menu Use this command to open a group of files for processing in Wave Corrector Wave Corrector displays the following dialog box so you can select the wave files and the processing you want to apply to each of them You can perform all the usual Wave Corrector operations in Batch mode except for track splitting Batch mode is intended for processing individual track or song files Note the batch command is also useful if you intend to apply several processes to a single file eg click removal normalisation and channel balance In this case you can use Batch Open to open the single file and the program will perform the sequence of operations without further user intervention REE Files to Process Drag files here or use the Add button C waves beet1 wav C wavesi p way Add Remove Ci waves metro wav Cilwavesltest wav z Save ox Vv Settings r Click Removal Other Actions Settings Balance Channels Auto Super Passes 1 Normalise Iv De Click Configure E zj dB Scale Trim Silence Re sample Config Filters r Output File Type Names wave Configure Iv Fiter Configure dd cor to Filenames Add Index Path Progress
95. selecting and using blocks Re Scan Block Menu This command enables you to re scan a portion of the file leaving the rest of the file unchanged All the original corrections in the block are removed before re scanning begins Selecting the command activates a dialogue box for entering new scanning parameters When running re scan you have the option to preserve any manually entered user corrections in the block Similarly you can preserve any cut amp splice sections in the block This command is only available when a block is selected See Block Operations for more information on selecting and using blocks 82 Click Threshold 3 Off Min Max Came Cancel Do NOT Remove IV User Corrections V Cuts Corrections in the selected block will be deleted New corrections will be generated For Advanced Options click here for expert users only Advanced Super Scan Command Block Menu This command enables you to re scan a portion of the file leaving the rest of the file unchanged The command is similar to Re Scan Block except that the original corrections are not removed before re scanning the new corrections being superimposed upon the existing corrections Selecting the command activates a dialogue box for entering new scanning parameters If the block contains very crackly material set the number of passes of super scan to a value greater than one Each pass of the
96. son In this way the efficacy of individual click corrections can be assessed and adjusted if necessary Corrections can be modified or deleted and new corrections can be cued or inserted Thus the user has complete control over the correction process Wave Corrector also automatically finds track boundaries and assembles separate wave files representing each of the tracks of a multi track source Wave Corrector includes the following key features Anintuitive user interface which allows easy before and after auditioning of individual click corrections artefacts produced by the correction process to be as small as possible A minimal number of user settings The capability to adjust and optimise individual corrections The inclusion of a range of digital filters to correct continuous noise and amplitude frequency distortion The capability to correct the audio volume of recordings The capability to automatically split a wave file into separate tracks Tagging and audio library support 1 2 Wave Corrector Operations This section provides an overview of the operation of Wave Corrector Wave Corrector is designed to automatically process both vinyl and tape cassette source material and to correct the usual impairments found with these recording media Standard processing takes place while the file is loaded into the computer In the case of vinyl the wave file is automatically scanned for clicks ticks and plo
97. super scan detector removes residual clicks This command is only available when a block is selected See Block Operations for more information on selecting and using blocks Super Scan for Clicks 2 xl r Click Threshold 3 Off Min Max EL Cancel m Super Scan Passes E New corrections will be generated and superimposed on top of existing corrections For Advanced Options click here for expert users only Advanced 83 Merge Tracks in Block Block Menu Use this command to merge a group of tracks into one single track Mark a block encompassing the track boundaries you wish to remove and select this command The tracks boundaries will be deleted and the tracks merged Play Block Commands Block Menu Use these commands to audition the selected block before or after correction Use Play Block Original or Play Block Corrected as required Cancel Block Command Block Menu Use this command to cancel the currently selected block 6 7 Help menu commands Tip of the Day Help Topics On Line Support Register Wave Corrector About 84 Tip of the Day Help menu A useful tip is displayed at start up Help Topics Command Help Menu Use this command to display a list of help topics From the opening screen you can jump to step by step instructions for using Wave Corrector and various types of reference information On Line
98. t a track click on it in the Tracks menu The currently selected track is indicted by a check mark next to it in the menu and it is displayed in the Overview window You can also select a track from the overview window by clicking over it and then clicking over the All Tracks indicator in the top right hand corner Clicking on the indicator a second time deselects the track and reverts to the All Tracks view If a track is selected and the user selects a correction from a different track the current track is automatically updated to reflect the change Selecting a Track Boundary Track boundaries are identified by track start and track end markers A marker can be selected by using the Next Marker or Previous Marker commands on the track menu Alternatively use the toolbar buttons 5 2 Merging and Splitting Tracks You can use the Merge Tracks and Split Track commands on the Tracks Menu or the equivalent toolbar buttons to add or remove track boundaries You can also merge a group of tracks by highlighting them in a block and using the Block Merge Tracks command Merge Tracks enables you to merge the tracks on either side of a track boundary marker You will normally use this command when Wave Corrector has incorrectly identified a track boundary say during a pause in the recorded music Split Track enables you to manually insert track boundary markers to split an existing track into two new tracks This will usually
99. t is better to detect on each channel separately PER CHANNEL Mode To summarise Mono Record Stereo Cartridge Use Differential Mode At all other times Use Per Channel Mode This setting has no effect when the Tape source is selected Note if the Differential detection mode is selected when there is no stereo difference channel data available then the detection mode automatically reverts to Per Channel mode 62 Correction Width This setting allows you to normal or narrow correction widths The narrow setting causes less disturbance to the waveform but some severe clicks may not be fully corrected Advanced Defaults Sets all advanced options back to their default values Undo Volume Changes command Waveform Menu Use this command to remove normalisation and channel balance that has been applied to the file Goto Max Sample Waveform Menu This command scans the file if necessary for the maximum amplitude sample and re centres the display on that sample If you have edited the file since the last time you used this command Wave Corrector will re scan the file in case the peak has changed Normalise Command Waveform Menu This command linearly adjusts the amplitude of all samples such that the maximum sample amplitude is equal to a user selected level The level range available is 20 to 0 dBFS where OdBFS decibels relative to Full Scale is the maximum sample amplitude possible See als
100. tation the usage is as follows lame options lt infile gt outfile The square brackets mean that the item contained in them is optional A simple option is b to set a bit rate so for example b 160 sets a bit rate of 160 kbit sec Wave Corrector translates the command that you enter using tokens for file names and textual tags When Wave Corrector encounters a token it replaces it with the corresponding value associated with the file Tokens always start with the 96 character The following tokens are recognised by Wave Corrector IN input file name OUT output file name A Artist L Album T Title G Genre N Track Number Note the LAME encoder also allows you to include tag information eg it uses tt to add a title tag Therefore for example to add a title tag you would use tt 96T A complete command line example is therefore b 160 tt T IN OUT The Compression Options dialogue is used to enter your command line 17 re Compression Settings Built in Encoders Flac Compression Level Ape Compression Level Ogg Quality Settings optimum 5 X high High 210k Y External Encoder Encoder File Extension lame exe mp3 Restore Defaults Custom Command Line Parameters b 160 ta 95A Et 9T El SaL tg G En N add id3v2 IN OUT Cancel 3 6 Loading Files into Wave Corrector Wave Corrector only processes
101. the context of the scale at the bottom of the main window When the option is checked the scale indicates timings relative to the start of each track When unchecked the scale shows raw file timings 54 Background View Menu Use these commands to select the background colour of the main window Use White background if you require a high contrast image for example if you are using a laptop or if you are visually impaired Fine Line Trace View Menu Use this command to reduce the thickness of the waveform trace This improves the resolution of fine detail Hide Normalisation View Menu Use this command to force the normalised wave to overlay the un normalised wave When you normalise the amplitude of a file or adjust the left right channel balance the corrected and uncorrected waves will no longer overlay one another This command adjusts the display amplitudes so that the overlay is restored This is useful if you want to visually compare the corrected and uncorrected waves Toolbar command View menu Use this command to display and hide the Toolbar which includes buttons for some of the most common commands in Wave Corrector such as File Open A check mark appears next to the menu item when the Toolbar is displayed See Toolbar for help on using the toolbar Status Bar command View menu Use this command to display and hide the Status Bar which describes the action to be executed
102. these applications for playing your music files 3 2 Sample Rate and Bit Depth Wave Corrector supports sample rates between 44 1 kHz and 96 kHz and word lengths of 16 and 24 bit The following list shows how the formats are used in different audio applications CD Audio 44 1kHz 16 bit DAT and DVD Audio 48kHz 16 bit Professional Studio Audio 88 2kHz or 96 kHz 24 bit All these formats produce very high quality results much better than the compressed audio available from Internet radio or Satellite or Terrestrial Digital broadcasting Although 16 bit and 44 1 or 48 kHz sampling gives excellent quality results there are advantages to using higher bit and sample rates when transferring audio from the analogue domain This is because the extra quality gives more headroom when digitally processing your recordings Also the higher sample rate allows Wave Corrector s click detection to be more discriminating For these reasons it is recommended to make your original recordings in a higher sample rate format if your soundcard supports this 14 Sample Rate Conversions Many computer audio programs and operating systems are able to convert between different sample rates However the quality of these conversions is often very poor For highest fidelity and to avoid audible artefacts very high order digital filters need to be employed Conversions in Wave Corrector use algorithms by Naoki Shibata as used in his stand alone program SSRC
103. to equalise the frequency response of an old recording and or to notch out single frequency tone interference An example of the latter is the 19kHz pilot tone in FM broadcasts The graphic filter allows you to set up at deep notch at this single frequency while passing all other frequencies unaltered 0 2 4 6 8 10 12 14 16 18 20 kHz 22 Example Notch Filter Centred on 8kHz The filter is very easy to adjust You can add or move points with the left mouse button and remove them with the right mouse button In this way you can quickly create a filter of your choice 27 4 Managing Click Corrections 4 1 Understanding Click Concealment Click concealment is the name given to the process whereby individual clicks are removed from a recording and replaced by a wave shape that is less offensive to the human ear Because the original signal is obliterated by the click concealment algorithms construct a replacement waveform by analysing the known waveform on either side the click Wave Corrector s automatic mode of click concealment is more than adequate for general use However audiophile users archiving treasured record collections may wish to achieve even cleaner results by utilising Wave Corrector s waveform comparison and editing functions These notes are provided to enable you to use these features to the full The Limitations of Click Concealment All click concealment programs must balance the conflicting requirements of dete
104. tomatically scanned for clicks when they are loaded but no filters are automatically applied If Tape is selected wave files are not scanned for clicks but a hiss filter is automatically applied instead Click Threshold Hiss Reduction When a vinyl source is selected this slider allows the click threshold can be set to a value between 0 and 5 where 0 is Off ie no clicks will be detected This alters the sensitivity of the click detection algorithm The default value is 3 When a tape source is selected the slider allows the amount of hiss reduction to be set Values between 0 and 20 dB can be set where 0 applies no hiss reduction and 20dB applies the maximum The default value is 8dB Enable Splitting Check this box to cause Wave Corrector to locate boundaries between album tracks Gapless Track Boundaries This setting is provided to enable the production of Disc At Once recordings on your CD In gapless mode the end of a track is always made exactly adjacent to the start of the next track It is also positioned on a 588 sample boundary This enables the CD recorder to produce a seamless track change with no gap between tracks You can only do this if your recording software supports Disc At Once In normal non gapless mode you can cut out unwanted gaps between tracks Remember that the CD recorder will normally insert its own 2 second silence between tracks Restore Defaults Select to return options to their default
105. tton Click Threshold This setting determines the sensitivity of the click detector The click threshold can be set between 0 and 5 where 0 is Off ie no clicks will be detected The default value is 3 Hiss Filter This setting determines the amount of hiss reduction applied by the hiss filter Four settings are available between OdB off and 20dB The default value is 8dB Enable Track Splitting This option causes the program to place markers at the start and end of each track it detects Gapless Track Boundaries This setting is provided to enable the production of Disc At Once recordings on your CDr In gapless mode the end of a track is always made exactly adjacent to the start of the next track It is also positioned on a 588 sample boundary This enables the CDr burner to produce a seamless track change with no gap between tracks You can only do this if your burning software supports Disc At Once In normal non gapless mode you can cut out unwanted gaps between tracks Remember that the CDr burner will normally insert its own 2 second silence between tracks 19 3 8 Batch Processing Wave Files Sometimes if you have a number of files to process it is more convenient to process them all together as a batch job With batch processing you give the program a list of files to process and a sequence of tasks to be performed on each file Then the program will work its way through the list without any further interve
106. u can also use the cursor keys on the numeric keypad to set the horizontal and vertical scale 29 As well as zooming in to reveal the detail of a particular correction you can also zoom out to view as much of the surrounding wave as you require This enables you to view and audition other clicks in the vicinity of the selected correction 4 3 Auditioning a Click Correction You can audition the current correction at any time by selecting the Audition command on the Corrections menu and selecting either the Audition Original or the Audition Corrected option There are also toolbar buttons for these functions or the numeric keypad keys 1 and 3 can be used as shortcuts During auditioning the second status bar pane from the left indicates whether the original or corrected version is being played You can instantly switch between original and corrected versions by clicking over this pane with the mouse 4 4 Adjusting a Click Correction If required the placement and width of the currently selected correction can be adjusted in order to optimise the shape of the corrected wave This is done using the Adjust Insert Command Having selected the correction simply drag the correction edge with the mouse to widen or narrow it To move it to the left or right use the left right cursor keys Note you can also adjust the width using the cursor up down keys if you prefer During adjustment you can audition the changes yo
107. u make To save your changes select the Apply button otherwise select Abort Note Corrections cannot be adjusted after digital filtering has been applied eg the hiss filter Therefore make sure you have finished adjusting corrections before applying any digital filters Alternatively you can use the Remove Filtering command to restore the adjust Insert capability 30 4 5 Inserting New Click Corrections Although Wave Corrector automatically generates corrections it will occasionally be necessary to manually add corrections because of imperfections in the click detect algorithms If a click is still audible after your wave file has been scanned and corrected it can often be found by highlighting a block around the area where you can hear the click and then selecting the Block Re scan or Super scan option using a more sensitive click detect threshold If this method fails however you can manually add a correction using the Adjust Insert command The following step by step procedure explains how this is done 1 Centre the main window display as nearly as possible over the click you want to correct Note that you re centre the display by double clicking over the new centre position you require 2 Expand the horizontal scale re centring if necessary until the rogue click is identified by its waveform shape Use the Audition command and its synchronised moving cursor to help you locate the click precisely 3 When you
108. u save an audio file see below If you have finished making adjustments to click corrections track boundaries etc then you should save your results in one of the audio formats described above Choose a format that can be read by your CDr burning software or by the other audio applications that you use Use the File Save Save command if you want to continue editing after the save or use the File Save amp Close command to automatically close the input file after the save operation is complete You will be prompted to specify how to name the output files and where you to store them If you have assigned tags to your individual tracks title artist genre etc then you can generate file names based on these tags Alternatively you can use the default naming convention which is to take the original file name and add the suffix cor followed by a pair of numerals equal to the track number See File Naming for guidance on the file naming features of Wave Corrector If any of the corrected file names already exist on your computer you will be prompted whether to overwrite them 22 3 12 File Naming Wave Corrector provides a very versatile mechanism for naming your output files File names are generated using a File Naming Rule that you either specify explicitly or select from a drop down list The file naming rule consists of free text and tokens The tokens are replaced by tags that you have entered using the Track Properties co
109. uction 8 14 or 20dB Hum Reduction 20dB Rumble Reduction 20dB Treble Control 12 8 4 4 8 12 dB Graphic Equaliser user defined equaliser filter 24 Filtering is used for two principle reasons To remove unwanted nose components To correct the frequency response of the recording Of the filters available in Wave Corrector the Hiss Hum and Rumble filters are solely for noise removal and the Treble Control filter is solely for correcting the frequency response The Graphic Equaliser being user defined is more versatile and can be used for both purposes The Hiss and Hum reduction filters use a special technique known as Noise Subtraction This method uses a noise profile that represents the unwanted noise present in the file The noise profile is used to create a mask that is subtracted from the entire file Noise subtraction is very effective at removing unwanted noise whilst preserving the full range of frequencies in the underlying music However for the technique to be successful there are some important precautions to be observed See the topic Noise Profiles for extra guidance The rumble filter is a simple high pass filter that removes the sub audio frequencies below about 30Hz Rumble is generated by some tone arm pickup cartridge combinations When it is excessive rumble can cause damage to loudspeakers so it is important to filter it out it you suspect its presence The hum filter removes the p
110. values as shown below Click Detect Threshold 3 e Hiss reduction 8dB Note only these basic settings are restored to their default values The advanced settings have their own restore Defaults button 61 Advanced Options Enable and Disable Wave Corrector s advanced options AGC Setting This setting turns down the click detector sensitivity as the music gets louder At low volumes clicks are detected normally but as the volume increases they become progressively less likely to be detected Noise Discriminator This setting causes Wave Corrector to analyse the spectrum of a click and reject or accept it depending on the noise characteristics of its spectrum Minimum Magnitude This setting allows you to reject clicks below the magnitude you set Most low magnitude clicks tend to be inaudible anyway so it is often possible to allow Wave Corrector to ignore them Click Detect Mode The click detect mode can be set to differential or per channel and should be set according to the characteristics of the source recording If the original source is of a mono disc recorded with a stereo cartridge then there can be an advantage to be gained by detecting on the stereo difference channel This is because there is no legitimate difference signal and therefore all the difference channel signal represents unwanted noise This mode is called DIFFERENTIAL Mode On the other hand if the original source is a stereo record then i
111. various other colour coded information is also present Track View shows a simple histogram of the file that is colour coded to represent the tracks of an album When a track boundary is selected the end or beginning of a track this window is used to adjust the positioning of the boundary and to add fades or silence To the left of the main window is a control bar for setting the horizontal and vertical scale and other aspects of the view Below the main Window is an Overview Window that normally displays a histogram of the current track or of the entire wave file Below the histogram markers represent each of the detected clicks To the right is the Correction List window that lists all click corrections applied by the program These corrections are colour coded according to the estimated severity of the click Track boundary markers are also listed in this window A conventional windows toolbar and status bar complete the Wave Corrector Interface View Waveform Corrections Tracks Block Help WV e Eb ot MAR CE NH Pel Olax eFa wml ew MIMI E m NNN 228 ES tart of Track 05 24 711 05 24 723 05 24 840 05 24 952 IE POP IO EE PO SO C2 i n9 Pr OTIO SO PO PO pA 2 00 03 836 00 03 837 03 00 03 839 00 03 840 x All Tracks C Track3 Hi 2 2 2 2 2 23 4 5 2 3 6 2 2 2 3 2 3 2 L NED For Help press Fl Ready to Save Tracks 6 2 1 The Main Window Wave View Wa
112. ve View emulates an enhanced dual trace oscilloscope display Its green and red traces representing the left and right channels At high magnification the display is scaled in multiples of samples per division at low magnification it is scaled in multiples of seconds or minutes per division During playback a synchronised vertical cursor moves across the window As you move the mouse over this window the rightmost pane of the bottom status bar indicated the position of the mouse pointer in minutes and seconds The green and red traces represents the corrected wave Both traces are overlaid on top of the uncorrected wave which is displayed in blue Because the traces are overlaid the blue trace is only visible where a correction has taken place This enables corrections to be easily identified The light yellow band at the centre indicates the width of a selected click as estimated by Wave Corrector Note that the blue uncorrected trace is only available at zoom ranges higher than 1 second per division At lower zoom ranges the waveform is dimmed to indicate that the overlay is not present Actions available from this window If a click correction is selected you can immediately enter correction adjust mode by holding down the left mouse button over the correction edge you want to alter and dragging to the required new width Double clicking over any point in the window re centres the display on that point If you double click n
113. vinyl or tape set the detection thresholds for vinyl clicks set the amount of hiss reduction for tapes and cassettes specify whether to separate an album file into tracks specify whether you want gapless track boundaries Note that you must select Re scan All to apply revised options to a wave file which is already loaded Source Recording Vinyl C Tape r Click Threshold 3 Off Min Restore Default Track Splitting Gapless Track Boundaries M Enable Disk At Once For Advanced Options click here REEL for expert users only The Advanced options should only be altered by expert users They are provided to help prevent the incidence of False Positives ie places where components of ordinary music are detected as clicks Most of these settings allow you to selectively reduce the click detection sensitivity Click Detect Mode C Differential Per Channel r Advanced Options m AGC Setting 0 Low High Lr L Noise Discriminator 0 Low High I L Min Magnitude 0 Low High m Correction Width Normal C Narrow Adv Defaults 60 Opt Toolbar Button E The Auto Scan Options window is divided into the following sections Source Recording This setting allows you to choose options for either a vinyl or a tape cassette source recording If Vinyl is selected wave files are au
114. vious Marker command Once a track boundary is selected you can easily re position it by dragging it with the mouse while holding down the left mouse button At the top of the Track Boundary View window a control bar enables you to set fade in out times and to insert pre or post track silence See Adding Silence or Fade In Out to Boundaries for a description of this process You can audition your changes by using the Audition Track Boundary toolbar button See the Audition Track Boundary command for a description of this process 5 5 Playing a Track Wave File You can play the current track at any time by selecting the Play Track command on the tracks menu and selecting either the Play Original or the Play Corrected option There are also toolbar buttons for these functions 36 If no track is currently selected then the entire wave file will be played When Wave Corrector gets to the end of the track file it loops back the beginning and continues playing During playback you can move immediately to a particular point by clicking over it in the main window or the overview window Playback then continues from that point The second status bar pane from the left indicates whether the original or corrected version is being played You can instantly switch between versions by clicking over this pane with the mouse See Play Track for a description of this process 6 Menus 6 1 File menu commands Open Fi
115. waveform which are usually inaudible 28 However if you wish to obtain maximum fidelity to the original recording any corrections which do not appear to serve a purpose can be easily deleted using either the Block Remove Corrections command or else the Delete Correction command if you just want to remove a single correction To help you identify the location of false positives Wave Corrector provides the option of displaying a correction signature in the Overview window The signature indicates the rate at which Wave Corrector is making corrections during the course of the wave file A high correction rate during medium to high amplitude music is probably indicative of the false operation of the click detector Such areas should be auditioned and false corrections removed if necessary See Removing Corrections for a description of this process Adjusting Corrections Although the majority of Wave Corrector s auto corrections are inaudible at normal listening levels there are occasions when a click is not completely removed To minimise correction artefacts Wave Corrector retains as much of the original waveform as possible and this can sometimes allow small portions of a click to slip past the corrector Usually this will only affect the highest magnitude clicks highlighted in red in the correction list These can be located using the Find Correction commands For these situations Wave Corrector allows you to make fine adjust

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