Home

UNFILTER

1. In general set this to max for removing static anomalies like EQ or room resonance from your signal and lower this value if you need to process time varying sounds or remove varying anomalies Adjusts the time constant that is used to determine which signal components are considered to be part of the transfer function The higher this value the longer a component must persist to be considered a filter feature NOISE SAVE LOAD UNFILTER 31 User Manual v 1 0 0 AY zynaptiq When on the LEARN function evaluates only stochastic noisy signal components to determine the transfer function Use this when working with signals that consist mainly of harmonic content or when using very short LEARN DCY times These buttons open a browser window that allows saving the current transfer function estimate as impulse response file IR or importing an IR as transfer function On SAVE you can choose between linear and minimum phase modes Linear phase mode gives you the option to select Zero Phase Ordering ZPO which will result in the IR starting with the peak level instead of at zero Use ZPO when you plan using the resulting IR within an application that explicitly supports this and leave this option off for use in regular convolution processors The minimum phase mode allows you to set the filter order in the range 10 1000 Try both extremes to get a feel for how this influences results The IR output format is WAV 24 bit a
2. using the Tab key to advance through the fields If you ve copied the Activation Key to the Clipboard you may paste the entire key in at once using Cmd V When you ve finished click the Activate button A B Activation Key Enter the response code into the Authorizer app click activate and your software should now be activated successfully UNFILTER 45 User Manual v 1 0 0 a zynaptiq CPU Load optimization UNFILTER uses a lot of CPU The mathematics involved are highly complex so there s a lot of computation to be done However CPU load is affected by a couple of variables We ll outline strategies to get the most out of UNFILTER on your CPU here 1 Use large buffer sizes UNFILTER needs to look at a certain amount of signal to be able to discern which parts of the signal are the transfer function and which aren t If your buffers are set to values that are shorter than that CPU load increases significantly UNFILTER internally operates on a buffer size of 2048 samples so in most host applications you ll want to set the buffer size to the highest possible value We recommend at least 1024 Samples 2 In Pro Tools use multi mono instances if possible Pro Tools can compute the channels of a multi mono instance on separate CPU cores which distributes the CPU load more evenly and allows larger channel counts than when running a multi channel instance on just one core 3 In Logic Pro all plug in
3. 0 AY zynaptiq AVG amp DCY Additional parameters that affect the way LEARN evaluates your signal give you additional control over how this process works Most importantly the parameters AVG and DCY which control how quickly LEARN responds to changes in the signal and how quickly it forgets what it has seen AVG takes the average over time to detect components in the signal that contribute notably to the overall sound of the signal Low values for AVG will make the estimated filter response adapt quickly to the signal However it will also make the process react to spurious changes that are not actually part of the original signal such as a click resulting from a cable being unplugged during a live recording or transients generated by muting the signal abruptly in your DAW Higher values will make the process slower to adapt but you will also increase the chance that important parts of the signal especially attack transients will be missed and omitted from the filtered response Likewise DCY determines how quickly LEARN forgets what it has seen in the signal Lower values are generally very useful if your recording has overall properties that are changing Slowly over time such as a moving sound source or mic A setting gt 0 99 for DCY will disable the forgetting process entirely and everything will be remembered by the algorithm In this case you need to press the RESET button in order to reset the algorithms internal state whe
4. and Installation ID below to a text file which can then be printed or emailed as needed Once you ve created an Activation Key return to this screen and click the Next button Activation URL http J activate esellerate net Installation ID SOME WEIRD CODE IS HERE Save Cancel Back Next Enter the Installation ID into the webform found at the URL displayed using a different computer to access the web esellerate After Purchase Services Digital River About eSellerate Product Activation eSellerate Product Activation is an anti piracy technology that helps ensure software is used only on the computer for which it was purchased During activation the unique Installation ID for the target computer is sent to eSellerate s product activation servers This Installation ID does not include any personal information nor does it include any information about the software or the documents that reside on the computer For details see eSellerate s Product Activation Privacy Policy Enter Installation ID In the field below enter the Installation ID supplied by the software you are activating In some cases the field will be prefilled When you re finished click the Submit button CL amp n P Terms of Use Privacy Policy Copyright 2013 eSellerate You will then receive a response code UNFILTER 44 User Manual v 1 0 0 AY zynaptiq a Enter your Activation Key in the fields below
5. dragging for finer resolution When the control has focus the up down arrow keys and mouse scroll wheel can be used to increment or decrement the value This control type has focus after it was clicked on AND the mouse hovers over it CTRL click or right click on the control to reset it to default Double click on the control opens a text box for numerical entry of the value A latching switch that activates a function or switches between two different functions CTRL click resets it to default UNFILTER 16 User Manual v 1 0 0 a zynaptiq cai Momentary Button A momentary switch that triggers an action such as a reset clear This control type comes in several sizes but is always essentially a rectangular outline En Pull down Selector Menu Opens a menu on click You can recognize this control type by its cut off top right corner CTRL click resets this to default value CET Checkbox Switch Functionally identical to the Toggle Switch this switch type is used within the display area UNFILTER 17 User Manual v 1 0 0 AY zynaptiq General GUI Layout The UNFILTER user interface is divided into 5 sections the Header Bar the Graphic Display amp Editor Area and the Learning Process and Output Sections Header Bar UNFILTER AY zynaptie Graphic Display amp Editor Learning Section Output Section Process Section UNFILTER 18 User Manual v 1 0 0 AY zynaptiq UNF
6. for example The Authorizer app will now display a dialog window that gives you several options for off line activation Activation Options To help reduce software piracy this product requires activation The computer you use to activate this product may be the only one that can use the fully functional software Automatic Activation is not an option with your present configuration However you can manually activate the software using a web browser on this computer or another computer with web access You will not need to provide your name or any other personal information for activation More Select the appropriate activation option below and then click the Next button Activate using a web browser on this computer Activate using a different computer that has web access I already have an Activation Key and would like to activate now Choose Activate using a different computer that has web access and click next This will bring up another window UNFILTER 43 User Manual v 1 0 0 AY zynaptiq ANN Product Activation Activate using another computer with web access K To proceed with activation you will need to take the Installation ID below to a different computer with web access and go to the manual software activation web site http activate esellerate net The site will provide instructions on how to create an Activation Key For your convenience you have the option to save the Activation URL
7. in dialog and location recordings but it became way more than that UNFILTER s intelligent detection of frequency response anomalies makes it a virtually automatic corrective EQ saving hours and hours of manually identifying and removing trouble peaks amp notches In most cases you literally adjust one control and you re good to go The free form curve editor in combination with the very high resolution filter engine makes it a highly efficient and great sounding general purpose clean EQ The fact that it can extract an inherent impulse response makes it a great tool for sound design engineering research and more We think that what we ve actually created is the single most flexible and efficient tool for working with frequency response and believe you will find many uses for it and save hours upon hours of your precious time We sincerely hope you will enjoy using UNFILTER Yours Stephan M Bernsee amp Denis H G kdag zynaptiq headquarters Hannover Germany May 2013 UNFILTER 7 User Manual v 1 0 0 System Requirements Mac Requirements v Vv Vv Windows Requirements gt v Vv v AY zynaptiq Intel based Apple Mac computer Minimum of 2 CPU cores running at 2 4 gHz or faster 1 GB of available RAM Mac OS X 10 6 or newer 60 MB free Hard Disk space Apple AU AudioUnits Steinberg VST 2 4 or Avid RTAS AAX compatible host software Internet Connection for Activation though not nec
8. is defined by the distance to the neighboring nodes STEP EDGE creates a stepped shape without transition with the edge of the step being placed at the node position UNFILTER 27 User Manual v 1 0 0 a Zzynaptiq STEP MID also creates a stepped shape but the node is placed in the center of the segment the edges being halfway between the node and its neighbors in terms of frequency not necessarily in terms of graphical representation UNFILTER 28 User Manual v 1 0 0 AY zynaptiq Notes on INTENSITY BIAS mode As described earlier when the editor is set to INTENSITY BIAS mode the breakpoint curve is added subtracted to from the main INTENSITY control s value allowing you to adjust the filtering unfiltering amount frequency dependently This feature allows for great flexibility in processing you could for example remove resonances in the upper mid range to enhance intelligibility of dialog exaggerate frequency response anomalies in the low end for increased weight and leave the low mid range untouched The BIAS value set with the Breakpoint Curve has a range of 1 1 and this is added to the current value of the main INTENSITY control with values outside of the range 1 1 being clipped This means that when INTENSITY is in it s center neutral position the Breakpoint Curve covers the entire range of the control Notes on EQ mode In EQ mode the breakpoint curve represents a highly flexible free form EQ
9. that are inserted on a bus output or aux strip that is fed by a live input source such as a live input or a virtual instrument track set to record enabled are rendered on one core This may result in CPU overload messages even while all except one core are idling Try changing the routing or disabling any record enable switches on virtual instrument tracks 4 Closing the plug in GUI saves some CPU cycles too UNFILTER 46 User Manual v 1 0 0 a zynaptiq Getting Support If you re having trouble with UNFILTER that isn t covered in these FAQ please email us amp we ll get you up and running ASAP We can be reached via http www zynaptig com support form UNFILTER 47 User Manual v 1 0 0 AY zynaptiq UNFILTER 4 User Manual v 1 0 0
10. will reset them to a vertical zero center position Similarly CTRL click right click and del backspace will remove multiple selected nodes see below for selection mechanics The INT BIAS CLR button will remove all except the first and last nodes which are set to 0 Selecting nodes Click on a node to select it Shift click on a selected node to de select it Shift click another node to add it to the selection Shift click on a selected node to remove it from the selection Shift drag from anywhere in the Editor area draws a selection box that selects nodes or adds them to an existing selection Of multiple nodes are selected clicking anywhere in the editor area will clear the selection UNFILTER 24 User Manual v 1 0 0 Breakpoint Editor SNAP AY zynaptiq Moving nodes Move a node or multiple selected nodes by dragging with the mouse use the cursor keys on your keyboard or the mouse wheel to move selected nodes The first and last nodes can be moved vertically only Moving a node past another node horizontally will remove the other node when you release the mouse button If you drag the first node back without having released the mouse button the other node will re appear The same is true when moving multiple selected nodes When moving multiple nodes the vertical movement stops when one of the nodes reaches the boundaries of the editor so you can not accidentally drag out of the edito
11. AS parameter adding or subtracting to the value of INTENSITY frequency dependently Which of these two modes is active is selected by the left pull down selector underneath the editor When in INT BIAS mode the breakpoint curve amp nodes are displayed in blue and the scale on the left of the display is in the range of 1 1 corresponding to the value range of the INTENSITY parameter When in EQ mode the curve and nodes are displayed in yellow and the scale is switched to the range of 12 12 dB The x and y axis values are displayed next to a node when moving it the node position in Hz for both INT BIAS and EQ modes the vertical node position as value 1 1 and 12dB 12dB respectively UNFILTER 23 User Manual v 1 0 0 Breakpoint Editor Operation AY zynaptiq Operation of the Breakpoint Editor is described here While there are many rules on how this works in practice you will find the breakpoint editor workflow to be very intuitive and fast Adding and removing nodes Click anywhere in the Editor area to insert a new node To remove a node a CTRL click or right click it b drag it out of the editor area and let the mouse button go or c select it and press delete backspace Whether and how the delete backspace keys will work depends on how your DAW handles keyboard events when a plug in window is in focus The first and last nodes can not be removed a CTRL click or right click on either of these
12. ILTER 1 User Manual v 1 0 0 The Header Bar The Preset Manager Storage Locations AY Zynaptiq To make working with the different plug in formats easier UNFILTER provides it s own preset manager and preset format This way you can load your custom settings exactly the same way regardless of whether you re working on the Mac or on a Windows machine whether you re using RTAS or VST The Preset manager is accessed using the small triangle icon in the upper left corner of the GUI A click on the triangle icon brings up a menu that provides options for Saving and loading presets saving the current setting as default and re setting the default preset to factory default values If you edit a recalled preset the triangle icon will be lit up to indicate that the current and saved values don t match There are separate locations for factory presets and user presets and they both depend on the OS platform you re working on Factory presets Mac OS X these are stored inside the actual plug in Factory presets Windows these are stored in the UNFILTER VST RTAS AAX Data folder which is installed next to the plug in User presets Mac OS X and Windows these are stored to lt your user document directory gt Zynaptig UNFILTER Presets UNFILTER 20 User Manual v 1 0 0 About Screen amp Update Check Pad zynaptiq UNFILTER 21 User Manual v 1 0 0 AY zynaptiq Clicking on the Zynaptiq Logo ope
13. In comparison to classic bell shelving or graphic equalizers this type of EQ allows creating arbitrary response curves Try setting curve type to EASE I O and raising just the rightmost node slightly this will result in a very natural and open sounding high shelf with a super smooth knee Or you could set up a mid boost with different slopes at the top bottom and a flat top in the middle or one that has super steep slopes without the cut boost needing to be super narrow at the same time UNFILTER 29 User Manual v 1 0 0 Learning Section LEARN RESET DCY AVG UNFILTER 30 User Manual v 1 0 0 AY zynaptiq Activates learning When off the current transfer function is kept and static When active the transfer function estimate is continuously updated Generally you should keep this on until the red curve essentially settles down unless you want to apply the current transfer function to another signal or want to apply the same processing to all channels see LINK Resets the transfer function estimate to default so LEARNing will restart from a neutral state Sets the rate at which the LEARNed transfer function estimation decays or how long the algorithm remembers the peaks identified as filter components which are defined by the AVG control At maximum DCY memory has an infinite duration nothing is ever forgotten lower values will adapt the transfer function to changes in the signal
14. LTER 1 4 User Manual v 1 0 0 AY Zynaptiq The Parameters General Controls Behavior UNFILTER sports several control types which have a variety of usability features We will describe the ones with extra functionality here Trackball Slider This control is a unique Zynaptig type it is essentially a vertical fader that looks like a knob The benefits of this configuration are that they are simple to control with a mouse like a fader yet conserve GUI space like a rotary control Also the combination of the horizontal marking on the Trackball and the circular value display make it very easy to tell the current value of the parameter Drag up down to change the parameter value Hold shift while dragging for finer resolution When the control has focus the up down arrow keys and the mouse scroll wheel can be used to increment or decrement the value The control has focus whenever the mouse hovers over it CTRL click or right click on the control to reset it to default Double click on the control opens a text box for numerical entry of the value UNFILTER 15 User Manual v 1 0 0 AY zynaptiq This is a straight forward slider control which comes in horizontal as well as vertical configurations Essentially it follows the same rules as the Trackball Drag the thumb along the slider axis to adjust the value Click anywhere in the slider groove to set the value directly Hold shift while
15. LUTION 32 f SMOOTHING 33 WEIGHTING 33 7 BAND EQ 34 Output Section 35 UNFILTER 4 User Manual v 1 0 0 GAIN LIMIT BYPASS LINK High pass Filter NOISEMON itor The Standalone App Understanding LEARN FAQ Overview AVG amp DCY Notes on AVG amp DCY NOISE Tips on Setting up LEARN Questions amp Answers UNFILTER 5 User Manual v 1 0 0 35 35 35 Sis 35 35 36 37 37 38 39 40 41 4 2 42 a zynaptiq AY zynaptiq Authorization Issues Windows 43 CPU Load optimization 46 Getting Support 4 7 UNFILTER 6 User Manual v 1 0 0 Introducing UNFILTER What is UNFILTER a zynaptiq UNFILTER is a plug in that can remove filtering effects like resonance EQ roll offs the effects of comb filtering or even synthesizer type resonant filtering To do this it uses a process called rea time blind de convolution to estimate the frequency response of the filter that was applied to your signal UNFILTER then creates a transfer function that undoes the filtering You can also apply the estimated transfer function to a different signal and save it to or import it from an impulse response file Additionally UNFILTER doubles up as mastering grade adaptive free form and graphic EQ and features a brick wall limiter to allow for unsupervised batch processing Our original intent was to create a tool for removing the peaks and notches introduced by resonance and comb filtering especially
16. Y zynaptiq the Zynaptiq copy protection allows the user to de activate a system at any time and re activate it later without contacting us So essentially you can pretty much move your authorizations around as needed The only limitation is that in order to de activate a machine it needs to be connected to the internet De Activating a Machine To free up an activation you can de activate a machine To do this please launch the UnfilterAuthorizer app and click Deactivate Product You will be presented with a confirmation message and you re done Please note that the machine to be de activated needs to be connected to the internet UNFILTER 13 User Manual v 1 0 0 AY zynaptiq Overview Applications For UNFILTER UNFILTER has a lot of uses here are some of them v Applying corrective equalization to sources in a virtually automatic manner v Removing unwanted resonance equalization or filtering from a signal Vv Mastering grade equalization of program material Vv Removing issues like comb filtering resonance and roll offs from Dialog recordings v Enhancing intelligibility of speech in forensics and law enforcement v Matching tonal character of multiple signals v Creatively shaping the tonal contour of a signal Vv Extracting a filter response curve as IR for use in other applications v Adaptive equalization of time varying audio such as streamed music in broadcast UNFI
17. Zynaptiq 970 92 Hz 0 44 Les INT BIAS CLR SNAP EASE VO Original Signal Output Signal Transfer Function sr 44 100 00 Hz PROCESS LEARNING m Kg BE RP 60 150 400 1k 3k 6k 19k Aa ipa D KC um Coms cs DE ACTE mu INTENSITY f RESOLUTION f SMOOTHING T BAND EQ CLR WEIGHTING ve a HPF i 200 Hz NOISE Baar LA LA LIMIT NOISEMON Introducing UNFILTER What is UNFILTER System Requirements Mac Requirements Windows Requirements Installation amp Authorization Installation Mac Installation Windows Authorization Mac amp Windows Authorization Details De Activating a Machine Overview Applications For UNFILTER UNFILTER 2 User Manual v 1 0 0 O v N V o o AY zynaptiq The Parameters General Controls Behavior General GUI Layout The Header Bar The Preset Manager Storage Locations About Screen amp Update Check The Graphic Display amp Editor Overview Display Breakpoint Editor Overview Breakpoint Editor Operation Breakpoint Editor SNAP Breakpoint Editor Curve Type Notes on INTENSITY BIAS mode UNFILTER 3 User Manual v 1 0 0 AY zynaptiq 15 15 18 20 20 20 21 22 22 22 23 24 25 26 29 a zynaptiq Notes on EQ mode 29 Learning Section 30 LEARN 30 RESET 30 DCY 30 AVG 30 NOISE 31 SAVE LOAD 31 Process Section 32 INTENSITY 32 f RESO
18. essarily on the Computer used for audio Minimum of 2 CPU cores running at 2 4 gHz or faster 1 GB of available RAM Microsoft Windows XP SP3 Windows Vista or Windows 7 8 60 MB free Hard Disk space Steinberg VST 2 4 or Avid RTAS AAX compatible host software Internet Connection for Activation though not necessarily on the Computer used for audio UNFILTER 8 User Manual v 1 0 0 Installation amp Authorization Installation Mac a zynaptiq Installing and authorizing UNFILTER on a Mac is very straight forward Simply expand the ZIP file you received navigate to the Mac OS X folder in the resulting directory and mount the contained disk image file dmg by double clicking it in the Finder Then launch the installer contained on the resulting auto mounted volume Follow the on screen instructions to install The installer will install the following files to the following locations 1 AudioUnits mono stereo and 8ch plug ins for both 32 and 64 bit use to lt root drive gt Library Audio Plug ins Components 2 VST mono stereo and 8ch plug ins for both 32 and 64 bit use to lt root drive gt Library Audio Plug ins VST 3 RTAS mono stereo plug in to Library Application Support Digidesign Plug Ins 4 AAX mono stereo plug in to Library application Support Avid Audio Plug ins 5 Manual UNFILTER Authorizer app amp stand alone application to Applications Zynaptiq Plug In Support During installation you will be pro
19. malize the frequency response use higher values f RESOLUTION UNFILTER 32 User Manual v 1 0 0 f SMOOTHING WEIGHTING UNFILTER 33 User Manual v 1 0 0 a Zynaptiqa f SMOOTHING applies a smoothing algorithm to the process resulting in less narrow band boosting attenuation The transfer function curve in the display reflects this parameter s effect If you hear artifacts similar to pre ringing or narrow band signal components breaking out increase this value WEIGHTING applies a Fletcher Munson curve to the transfer function of the plug in This allows for more natural sounding results when un filtering aggressively The most pronounced effect is in the low frequency range so if you re losing too much low end in the un filtering process increase the value of this control a zynaptiq 7 BAND EQ The 7 BAND EQ is a mastering grade graphic EQ intended for broad stroke equalization after un filtering The sliders have a range of 6 6 dB The CLR button resets all sliders to 0dB UNFILTER 34 User Manual v 1 0 0 Output Section GAIN LIMIT BYPASS LINK High pass Filter NOISEMON itor i UNFILTER 35 User Manual v 1 0 0 AY Zynaptiq This control adjusts the output gain of the plug in the unit is dB This control is pre limiter to allow controlling the amount of limiting applied Activates a brick wall limiter with a fixed threshold at OdBFS to catch an
20. mpted to activate your plug in so please keep your activation code at hand Please note that we strongly advise to activate your software at this point and not from within your host application UNFILTER 9 User Manual v 1 0 0 Installation Windows AY zynaptiq Installing and authorizing UNFILTER on a Windows system is very straight forward Simply expand the ZIP file you received and navigate to the Windows folder in the resulting directory Therein you will find the following individual installers 1 VST 2 4 mono stereo and 8ch plug ins 32bit 1 VST 2 4 mono stereo and 8ch plug ins 64bit 2 RTAS mono stereo plug in 3 AAX mono stereo plug in Choose the appropriate installer and launch it Please note that you need to be logged in as admin level user The installers create the following files 1 The VST installer creates the UNFILTER VST plug in in lt Program Files Folder gt Steinberg VstPlugins Note should you keep your VST plug ins in a different location you should point the installer to that directory when provided with the option Note please do not rename move or delete the Data folders installed next to the plug ins 2 The RTAS installer creates the UNFILTER RTAS plug in as well as the UNFILTER RTAS data folder in lt Program Files Folder gt Common Files Digidesign DAE Plug Ins Note please do not rename move or delete the Data folder installed next to the plug in 3 The AAX installer crea
21. n working with a different signal For moving sound sources and filtering effects DCY should be set to a value lt 0 99 for removal of stationary filtering effects such as channel EQ you should try the highest possible setting For channel auto equalization in order to create a good sound for longer recordings such as mixes and audio streams try a value around 0 5 for both AVG and DCY UNFILTER 38 User Manual v 1 0 0 Notes on AVG amp DCY AY zynaptiq While UNFILTER will in most cases simply work great there are some trade offs to consider in terms of how to set DCY and AVG times when you run into a signal that is particularly tricky Note that tricky doesn t relate to how strong the resonance issues are in fact the stronger the resonances the easier they are to detect It relates to how similar the signal and transfer function are For example long AVG times allow considering only components that have been in the signal for a long time which causes less signal components to be mistaken for resonances However with monotonous speech or other signals that do not vary their pitch a lot long AVG times also Show a tendency towards preferring resonances near the fundamental frequency of the sound Lower values allow a more balanced analysis but may also result in less accurate detection as more signal is allowed into the transfer function Similarly long DCY values have the advantage that if your signal isn
22. nd the sample rate is taken from the current session On LOAD the IR s transfer function is inverted and the data is converted to match the session sample rate The IR will be truncated to UNFILTER s internal length so importing a reverb IR will not allow adding or removing reverb Supported file formats are WAV AIF F 16 or 24 bit AY Zynaptiq Process Section The INTENSITY parameter controls the amount of un filtering or filtering applied The center position is neutral Positive values result in the detected filter response being removed from the signal linearizing its frequency response Negative values will apply the detected filter response which will exaggerate the filtering when using the same signal or apply the filter if using a different ideally already linear ized signal The Breakpoint Editor in the Graphical Editor Area allows adding positive or negative offsets to this value frequency dependently when in INT BIAS mode so you could for example linearize just a specific frequency range INTENSITY f RESOLUTION adjusts the behavior of the algorithm with regard to the frequency response anomalies to be removed applied Lower values will remove apply only anomalies such as resonances or EQ higher values will also affect harmonics or roll offs If you want to attenuate resonances without affecting the general frequency response of the signal use lower values if you want to remove roll offs or generally nor
23. nmental noise stochastic components in the signal will all be used to derive the frequency response in this case Since this process works independently of strong harmonics you can derive a smooth frequency response in these cases as well Note As resonances are typically narrow and depending on the acoustic situation may persist over a longer period of time some of them will also be ignored when using NOISE In a nutshell NOISE mode may help with some signal types but at the expense of precision under some circumstances UNFILTER 40 User Manual v 1 0 0 AY zynaptiq Tips on Setting up LEARN so how to adjust these values in practice Generally you ll be fine inserting the plug in with the default preset which has LEARN set to ON and DCY set to infinite and de activating LEARN once the transfer function red line in the display has settled down From there adjusting INTENSITY is probably all you ll need to do If you re not satisfied play with the two parameters to get a feel for how they influence the result RESET the LEARN first Try setting both DCY and AVG to 0 5 Try setting AVG to 0 and DCY to 0 99 as well as the reverse Activate NOISE and listen to the noise components by switching in the NOISE MONITORING in the OUTPUT section Repeat the steps pertaining to DCY and AVG while in noise mode It should become apparent within a minute or so which combination gets you in the right ballpark you can then fine tune from
24. ns an About screen which displays version information as well as copyright and and legal notices Also from within the About screen you may check for updates manually or toggle automatic weekly update checking a Zynaptiqa The Graphic Display amp Editor Overview Display The Graphic Display amp Editor area serves two purposes it displays various pieces of information and allows creating and editing a breakpoint curve that generates a frequency dependent bias offset to the INTENSITY parameter or serves as free form EQ The display shows amplitude versus frequency plots for the input magenta and output mint signals as well as the estimated transfer curve a k a the measured filter response red Amplitude frequency ranges that are covered by both input and output plots are displayed in cyan this makes it easy to see what is being added or removed by the UNFILTER process You will note that this analyzer type display is extremely fast and accurate on low pitched sounds you can actually see the individual harmonics Also shown are a legend as well as the current sample rate UNFILTER 22 User Manual v 1 0 0 AY zynaptiq Breakpoint Editor Overview The Breakpoint Editor allows creating a free form curve defined by an arbitrary number of nodes which are connected by line segments with user selected interpolation The breakpoint curve can be used either as free form EQ or to adjust the INTENSITY BI
25. ollow the following steps 1 make sure you set the system sample rate to the rate that your source amp destination files have should have from within the Audio MIDI Setup utility 2 start playback on the source file before you start recording UNFILTER 36 User Manual v 1 0 0 H Understanding LEARN Overview AY zynaptiq The LEARN function lies at the heart of UNFILTER and thus understanding it will help you getting the most out of the plug in Well how does it work LEARN first creates a distinction between spurious frequencies in your signal such as noise and long term stationary components that contribute more to the overall sound of the recording Once this distinction has been made the stationary components are evaluated over time to see which components change rather quickly most likely part of an instrument or voice and which components do not For instance filtering effects such as room resonances tend to stay stationary or change only Slowly with time when compared to the actual frequencies in a musical performance This distinction in time and frequency allows the UNFILTER algorithm to separate out a frequency response curve that can estimate and successfully remove an undesired filtering effect Since both the frequency response of the undesired filtering and the actual filtered signal are unknown to the algorithm in advance this process is called blind deconvolution UNFILTER 37 User Manual v 1 0
26. r area which would remove the relevant node Also when moving multiple nodes horizontal movement is stopped when one of the outer selected nodes reaches the editor s left or right boundaries When the first or last node is selected together with other nodes the entire group can be moved vertically only When SNAP is on a node will snap to zero and if you re in INTENSITY BIAS CE mode also to the inverse of the current INTENSITY value when moved to within 14 pixels of the respective vertical value This makes it easy to set a specific frequency range up to have no BIAS at all and thus be at exactly the current INTENSITY value SNAP to zero or to bypass filtering un filtering for a specific frequency range altogether by setting a BIAS that results in an INTENSITY value of zero for that range SNAP to inverse INTENSITY value In EQ mode SNAP makes it a snap to set a node to zero UNFILTER 25 User Manual v 1 0 0 a Zynaptia Breakpoint Editor Curve Type The curve type selector lets you choose the shape of the line segments connecting the nodes of the breakpoint curve Choices are LINEAR EASE I O ease in ease out PEAK DIP STEP EDGE and STEP MID LINEAR simply connects the nodes with straight lines EASE I O creates a smooth curve between the nodes UNFILTER 26 User Manual v 1 0 0 a Zynaptia PEAK DIP creates a narrow peak or dip curve referenced around zero whose width aka Q
27. t constantly on if there are pauses and or sections with very different signal you ll still be able to keep track of what resonance candidates were seen But should a signal component be identified as resonance mistakenly it will also remain in the transfer function longer and if it is seen again before it has decayed it will be retained indefinitely Using short DCY values on the other hand ensures that only the components that are longer than the decay time are retained while more spurious components will be discarded faster UNFILTER 39 User Manual v 1 0 0 AY zynaptiq NOISE Another important parameter in the LEARN process is NOISE NOISE removes foreground information from the input sounds before processing and allows the algorithm to only focus on the background information within the signal To hear what this sounds like with your recording turn on NOISE MONITORING If this is on you will hear exactly what the algorithm will hear when NOISE is enabled Why is this useful For instance if you are processing a piano recording you will generally have a lot of stationary harmonics and large frequency gaps between them which are devoid of information that the algorithm could use to estimate a smooth frequency response By removing the foreground i e the harmonics the algorithm uses only the frequency response derived from the noise that was present in the original signal Attack transients background or enviro
28. tes the UNFILTER AAX plug in in lt Program Files Folder gt Common Files Avid Audio Plug Ins UNFILTER 10 User Manual v 1 0 0 AY zynaptiq All Windows installers will install the UNFILTER Authorizer app to lt Program Files Folder gt Zynaptiq UNFILTER Windows Vista Windows 7 8 users please make sure you activate the plug in when the activation dialog is opened during install and NOT from within your host UNFILTER 11 User Manual v 1 0 0 Authorization Mac amp Windows Authorization Details zynaptiq To be able to use your new software it needs to be activated During installation of UNFILTER the UnfilterAuthorizer app will automatically be launched YO UnveilAuthorizer Pa zynaptic Please activate your product You can find your activation serial number printed on your registration card or on your receipt Enter your serial number and click Activate If your machine has access to the internet you ll be shown a confirmation of the successful authorization and you re good to go If the machine you re activating on has no internet connection you will be guided through the process Generally our copy protection mechanism will allow you to have two machines authorized at the same time It is essentially a challenge response type system that takes specifics of your computer into account anonymously However unlike most other challenge response systems UNFILTER 12 User Manual v 1 0 0 A
29. there UNFILTER 41 User Manual v 1 0 0 AY zynaptiq FAQ Questions amp Answers Q I am hearing ugly drop outs ring modulation distortion what is causing that amp what can I do A Most likely you are overloading your CPU UNFILTER is a computationally very heavy weight process The first thing you should try is to set the I O and or processing buffers of your host to higher values ideally 2048 samples or higher This will significantly decrease the CPU use and in most cases eliminates the artifacts mentioned above Q Mac Logic Pro shows me a Sample Rate Mismatch or similar error when inserting UNFILTER and sound is distorted or stops altogether What can i do A You are overloading the CPU but Logic is displaying the wrong error message Increasing the I O and process buffer sizes usually cures this issue If not see the CPU load optimization section below for some tips on how to get more out of your machine UNFILTER 42 User Manual v 1 0 0 AY zynaptiq Authorization Issues Windows Q I am using Windows and when I try to activate UNFILTER I am seeing an error message stating there has been an Unknown Error and activation fails What can I do A This means that there is something interfering with the activation process Disable any firewall security or anti virus software and try again If the problem persists you should temporarily disable your internet connection by pulling the ethernet cable
30. y overs The limiter is positioned after the output gain control This is intended for ensuring clip free batch processing and will not replace a fully featured limiter even though it is a very good sounding limiter as is Bypasses all processing and routes the input signal directly to the output Applies identical processing to all channels This option is only active when LEARN is OFF Adjusts the cutoff frequency of a 96dB octave shelving high pass filter in the range of 0 Hz which switches the filter off to 200 Hz This filter is pre limiter and sounds excellent When on the signal used for the NOISE LEARN mode is routed to the output The un filtering is active so this can be used for creative sound design a zynaptiq H The Standalone App On MacOS X UNFILTER comes with a simple stand alone application the Zynaptig Stand Alone This application is intended for quickly previewing audio through the plug in and is explicitly NOT intended to be an editing application See it as a free bonus FYC The application allows playing files through UNFILTER as well as recording the results to a new file As the application is not a full blown host it uses the Mac system audio preferences including device amp sample rate As any open application including browsers the finder etc can request to change the system sample rate this means that in order to make sure your new file has the correct sample rate written you should f

UNFILTER

Contents

Download Pdf Manuals

Related Search

Related Contents