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AudioSculpt v2.0

1. Open Analysis opens an fft file containing the image of the sonogram if a sound already had been opened Open Treatment opens a trt file if a sound already had been opened Open As Text opens a text file in particular temporary processing files that can be found in the temp directory Open Movie amp Sound opens a sound in QuickTime player Close closes the current window Save Treatment saves the current processing file Save Treatment As saves the current processing file Save Sound As saves the current sound file Ircam documentation 53 Revert disabled Page Setup useless Print disabled Quit exits AudioSculpt 6 2 Edit menu Treatir Edit y Processing Can t Undo Select All a6 A Select All Treatments Select by Attribute Preferences Can T Undo disabled Cut disabled Copy disabled Paste disabled Clear deletes all selected processes Select All select the whole sound Select All Treatments select all processes Select by Attribute disabled Preferences access to the preferences 54 Chapter 6 Menus Ircam documentation Chapter 6 Menus 6 3 Processing menu Best Treatments Wind Sonogram Analysis D Process Treatments dT Process 5election Normalize Source Filter synthesis Convert to Surface Replicate in Frequency Replicate in
2. the right output format will be set lt list gt o 18 2 listo Strings separated Dy y number time amplitude frequency phase etc lt file gt is a text file where output format is specified SAA Examples Oa number amplitude phase 0a foo format Ircam documentation 75 76 Appendix SuperVP Help List of available strings as output data t time time number number a amp ampl amplitude linear amplitude adb amp_db ampl_db amplitude db amplitude in dB pr partie_reelle pi partie_imaginaire f fhz freq frequence mid cents fmc ph phase phase spl sound press excess weight harmonic weight real part of a complex number imaginary part of a complex number frequency in Hz frequency in midicents tsp truesp truepitch harmonic true pitch SC SCOre SEDES coeff coeff _ pitch pitch coefficient largeur largeur _ formant cf coeff_filtre partie_reelle partie_imagin frequence_hz frequ_cents frequ_midicents frequ_inst amplitude lin amplitude_dB phase sndpressexcess truepitch weight score f0 coef pitch largeur formant coeff filtre LPC formant width autoregressive lpc filter coefficients NO Allowed combinations o m o cepstre masquage fO formant LOC OK NO NO NO OK OK NO NO NO OK OK OK OK OK OK OR OK OK OK OK OK OK OK OK OK OK NO NO NO OK OK OK OK OK OK OK OK OK OK OK OK NO NO NO OK NO OK NO NO N
3. For this function the sonogram is needs to be displayed as well as the floating palette Edit Colors that has to be is opened This will open if you check the Show Color Palette item in the Window menu Ircam documentation Chapter 2 Processing The Tab key hides or show in turn this palette as well as the two others Tools and Inspec tor The values by default are 10 dB for black and 40 dB for white In the Treatment menu choose Add Clipping On the sonogram two yellow vertical lines will represent the limits of the time selection The filtering is applied by using the two cursors of the floating palette Edit Colors While the whole sonogram is affected by the changes only the selected part of the sound will be modified during calculation africa aiff Pp 44100 0 Samp Sec 166it AIFF 5 23 Seconds Mono FA Horiz Sec 0 45 Wert Hz 22000 0 End Sec 2 741 Height CHz 22000 0 width Sec 2 291 21 High dE In Low dE 69 To Modify the two values you can either use the floating palette Edit Colors or open the dialog box by double clicking on the track element For this also the Inspector palette can be used You can move or readjust time wise or duplicate the rectangle therefore process on the track in the same way as surface elements You can also modify your processing by using the Inspector palette The function Replicate in Time is active Ircam documentati
4. You can move readjust time wise or duplicate the rectangle thus processing on the track in the same way as in surfaces Replicate in Time and Invert functions are active The Invert function changes the sign of gain 2 5 2 Dynamic Transposition In the Treatment menu choose Add Dynamic Transposition the process is the same one as for the Breakpoint filter The horizontal axis represents time and the vertical axis the transposition in Cents hun dredth of a semitone and in semitone africa aiff transposition 1 61 2 69 gt The editor limits the transposition to about 5 octaves The corresponding element will be placed on another track Ircam documentation Chapter 2 Processing africa aiff Pp 44100 0 Samp Sec 16Bit AIFF 5 23 Seconds Mono W Horiz Sec 1 611 Wert hz 220350 0 EndiSec 2 688 Height Hz zz050 0 width Sec Cents Replicate in Time and Invert are active The Invert function gives the opposite trans position 2 5 3 Dynamic TimeStretching expansion compression In the Treatment menu choose Add Dynamic TimeStretch the process is the same one as for the Breakpoint filter and Dynamic Transposition The horizontal axis represents time and the vertical axis the coefficient of expansion compression The editor limits the coefficient to 0 01 for compression and 10 for expansion The corresponding element will be placed on
5. 1 Channel numbers start from 1 The default value depends on the selected output format For sounds the default is to process all channels for analysis data only one channel can be processed and the default channel is channel 1 AA Examples s C2 selects the second channel from a stereo sound file Ee lt end gt specifies last selected sample in the input file Def end of file if end points to samples past the end of file zeros are added to the file content If end contains a decimal point it is interpreted as time in seconds if not it specifies time in sample number Ea Examples E5 0 E8 9200 Aafanalysis type Def fft specifies the analysis procedure type is ATTENTION all analysis types besides tft 1pe lpe inv are not tested for the current version of svp Use at your own risk fft fast fourier transform a Example Afft lpc order Def 30 linear prediction analysis order is the number of poles The lpc filter is multiplied by the residual energy to have a proper spectral representation See ns truelpc switches for further information on lpc normalization Fee Example Alpc 50 lpc_inv order Def 30 linear prediction analysis with envelope inversion order is the number of poles LPC analysis with with inverted spectrum for inverse filtering for possible application see G option or Fgabarit The inverse lpc filter is multiplied by the inverse residual energy such that it may b
6. Bpf You can put the pointer on any value of any scale and while holding the mouse button you can zoom in it by moving the mouse slightly to the right and zoom out by moving slightly to the left The same action can be obtained with the command key apple starting from the value on the left of the window By positioning any tool on any value of any scale and by holding the mouse button the scale will get bigger and bigger around this value until the release of the mouse button The magnifying glass tool has the particular characteristic that it can become negatif when pressing on the option key you can zoom backward Double clicking on a scale will turn it into its initial dimension The magnifying glass see section 1 7 allows you to select a part of the sonogram or the sound sound window and to readjust the size of the window Double clicking in the sono gram or on a ruler will return it to the initial width 6 Ircam documentation Chapter 1 Getting started By positioning the magnifying glass on the sound window or on the sonogram and by using option click the magnifying glass becomes negative and a back zoom centered on this position is done Once you zoomed in the sound or the sonogram the red frame on the upper zone reduces the part of the sound which is visible in zone 2 O ari ca aiff gt BB gt 44100 0 Samp Sec 16Bit AIFF 5 23 Seconds Mono Note If the zoom is too big the red frame cannot
7. Inspector and Color Palette After that go to the menu File and select Open MIA Edit Processing Ti Mew Text Mew Console Mew Bpf Mew Sonogram dN Open Analysis Open Treatment Open s Text Open Movie amp Sound Close HWY Save Treatment 5 Save Treatment As Save Sound As Revert Page Setup Print de P Quit a5 Choose your sound in the dialog window Audiosculpt s main window will open and the name of the sound file will appear as follows Ircam documentation Chapter 1 Getting started Open Audiosculpt AIFF 7 S FT Hier Num of Ch Mono gt S Kernels Hier Duration 5 23 Sec Sample Rate 44100 0 Bud G Sounds Aujourd hui Data Format 16 Bit Integer taal africa aiff 19 01 02 Num Frames 230656 gt Gi avp Aujourd hui gt Ci Temp Aujourd hui Masquer l aper u FA Ae africa aiff 7 44100 0 Samp Sec 16Bit AIFF 5 23 Seconds Mono When using the drag and drop method the window will open automatically 1 3 AudioSculpt s window This window can be adjusted in the ordinary way see the box bellow on the right In top on the left you will find information concerning the opened sound gt 44100 0 Samp Sec 16Bit AIFF 5 23 Seconds Mono Zone 1 Upper zone displays the sound as a waveform The red frame displays the visible part of the sound in zone 2 e 44100 0 Samp Sec 16Bit AIFF 5
8. S1 xval 82 cross type cross Sl and S2 are calculated in amplitude freg representation and the output is Amp SO Xval Amp S1 xval Amp S2 qval Amp S1 Amp S2 Fre SO Yval Fre S1 yval Fre S2 cross type mul source filter Sl and S2 are transformed into Amp Phase representation and the output is Amp SQ Amp S1 Amp S2 Pha SO Pha S1 Pha S2 cross type amul source filter Sl and S2 are transformed into Amp Phase representation and the output is Amp SO Amp S1 Amp S2 Pha SO Pha ol cross type pmul source filter Sl and S2 are transformed into Amp Phase representation and the output is Amp SO Amp S1 Pha S0 Pha Sl Pha szZ filename is the parameter file for add and cross modes for cross mode the file is made of lines with time X x Y y q for add mode the file is made of lines with time X x Notes Order and position of the XxYyq flags is free The processing is stopped in cross and add mode if both files are finished in mul amul pmul mode if either source is finished Note that the increment step of the second track is adapted to match the duration of both sources if you do not specify the step size for the second channel with i explicitely HS Examples Gadd file Gadd x 0 X240 Gcross X0 5 E D Y1 0 y1 0 q0 0 with mul mode inverse filtering to obtain a normalized excitation can be performed with the same sound on both channels Here Exampl
9. Time Add markers Sonogram Analysis launches the sonogram calculation on the totality of the sound Process Treatments launches the processing calculation on the totality of the sound in gray as long as a processing is not defined Process Selection launches the processing calculation on the sound selection in gray as long as a processing is not defined or a part of a sound has not been selected Normalize opens the normalize dialog box Source Filter Synthesis opens the source filter synthesis dialog box Convert to Surface disabled Replicate in Frequency opens the dialog box allowing to adjust duplication in frequency of surfaces and the pencil Replicate in Time disabled Add markers opens the dialog box allowing to adjust duplication in the time positively or negatively of the selected processing Ircam documentation 55 Chapter 6 Menus 6 4 Treatments menu Aa Window Aide Add Constant TimeStretch Add Constant Transposition Add Constant Formant Add Band Add Clipping Add Breakpoint Add Dynamic Transposition Add Dynamic limeStretch Add Dynamic Forman Invert The items of the menu are in gray and are not displayed while the whole sound or part of it is not selected Add Constant TimeStretch opens the dialog box allowing to adjust the coefficient of expansion compression Constant Add Tra
10. aforementioned window Bpf windows will lose their name and become simply Breakpoint filter or another type in a set of processings which has been saved in a trt file except the first one The value will indicate 0 even if the Bpf line does not seem to be aligned on zero The Resampling item will not appear in gray in the Bpf menu If you select it AudioSculpt will crash The Resampling item will not appear in gray in the Bpf menu If you select it Au dioSculpt will crash The sequencer If you get back to a type of processing which has already been used a new track will be created If you deleted all the elements of one or more tracks a new processing on a new track will be added anyhow If you open a trt file a group of processes which has been saved before this will be done on one or more new tracks Right now it is not possible to remove a track even if it is empty Saving a set of processes in a trt file unfortunately does not save track changes Ircam documentation Appendix A SuperVP Help Note This document corresponds to the output of supervp ha command SUPErVP IRCAM 1990 2002 version 2403 compiled by ro bel Lor 1686 Linux 2 4 9 13smp on Mon Sep 9 12 09 52 CEST 2002 i Prints GUE Lars help description ha prints out all sections of the help besides the extended filter description hi prints out the help message for input options hp prints ou
11. after the installation you have to check in the preferences Edit menu Preferences choose the Environment tab and click on Defaults then on OK The processing Dynamic Formant does not work with this version of SuperVP The pencil is only active in the surface method As for the pencil the preferences will not include the width of the stroke Therefore it is better to define this in its corresponding menu By holding the shift key it seems that you are able to obtain a rectilinear movement of the pencil while actually no object is created In fact it s not possible yet to remove points which has been created on surfaces or bands A certain number of bad displays will require refreshing by clicking twice on the box in the top right corner of the window Zone 2 of the sound window makes it possible to travel in the sound but first it will show the sound in its totality except the end which is hidden by the vertical scrollbar The sonogram is not really displayed from zero Hz By pointing on the vertical bar of the sonogram and by clicking on it the pointer will be transformed into a hand which holds the bar and allows you to move it laterally in order to adjust the width of the sonogram lt is not advised though to use it in its extreme position on the right because in this case the spectrum will not be displayed any more Moreover the bar will disappear almost completely except a small part of it The
12. be displayed Positioning any tool on this red frame and holding the mouse button allows you to move along in the sound and the sonogram Note The red frame is not very precise The hand tool see section 1 7 allows you to grab the image of the sonogram and to move it into any direction in its window the sound window will be automatically displayed In the Window menu Optimize Sonogram allows you to display the sonogram and the sound window zones 2 and 3 in full screen mode and vice versa The corresponding keyboard short cut is command u 1 7 The tool palette Tools The tool palette appears if you check Show Tools in the Window menu it is advised to check this option once for all Qutil pointeur Outil loupe Qutil main Outil curseur Outil surface rectangulaire Outil surface libre Outil lasso Outil crayon Outil diapason Outil harmonique Inactif Ircam documentation Chapter 1 Getting started The tools have about the same functions as in the previous versions of AudioSculpt Their particular use is described in the corresponding paragraphs Keyboards Shortcuts make it possible to change quickly from one tool to another a Arrow pointer h Hand tool s Frame surface tool Lasso tool d Tuning fork tool z Magnifying glass tool Zoom b Selection cursor Beam r Area tool disabled in this version e pencil tool disabled in this version Note The Tab key allows swit
13. freehand Select the elements in the usual way by holding the shift key then use one of the two methods described above by opening the window Edit dB Valuee by double clicking on the rectangle of the track or by pressing on the control key then by holding the mouse button pressed and by moving this one The color of the surfaces depends on the value of the gain blue for a positive value and red for a negative value 2 3 3 4 Replicate in Frequency This function can be found in the Processing menu It is used for duplicating selected surfaces along the frequency axis Ircam documentation 17 18 Chapter 2 Processing dia Treatments Wind Sonogram Analysis 3D Process Treatments dT Process Selection Normalize Source Filter Synthesis Convert to Surface Replicate in Frequency Replicate in Time Add markers lt is necessary to choose the number of replicates and their frequency shift upward or down ward in Hertz or Cents one hundredth of a semitone or in interval Replicate in Frequency Replicate times Shift by Tir J Ey o cents Q By 8 Up Down It should be noted that the track elements are superposed You can change the gain of each replicate only by selecting them one by one with the pointer tool Each one of them could be moved horizontally and even vertically Ircam documentation Chapter 2 Processing africa aiff Pp 44100 0 Samp Sec 16Bit AIFF 5 23 Sec
14. iis lid 41 WO BUGS and EMOS ui ee 43 A Super vP Help aiii 45 B SuperVP Help Filter module descriptiON oooncccocnncnnccooncnnnoncnnncnconennnnancnennananononnans 55 Ircam documentation Introduction 1 Foreword This document will not consider the basic concepts of AudioSculpt Those could be con sulted in the AudioSculpt 1 2b1 documentation The AS2 directory contains the following elements e AudioSculpt 2 the application itself e Fft an empty directory storing the temporary Fft files Kernels a directory which contains the SuperVP binary in this version SuperVP 2 03 e Sounds a directory containing africa aiff a sound file example and in which can be stored other sound files svp a directory which contains essential files used for running the application Temp an empty directory storing the application s temporary files Treatments an empty directory storing processing files It s very important not to move any of these directories or files except the Sounds directory If this would be the case Audiosculpt would crash or result in errors AudioSculpt was tested on MacOS 9 and MacOs X 10 2 2 Warning Warning AudioSculpt 2 01 is still in its develooment phase However a great number of bugs have been corrected and new functions are available In chapter 11 you will find a non exhaustive list of bugs and known features All observations and comments can be s
15. or by pressing on the control key then by maintaining the button of the mouse pressed and by moving it Moving duplicating deleting and saving by Drag and Drop on the finder of surfaces can be done in the same way as for rectangular surfaces To readjust one of these surfaces in time place the end of any tool on the border of the corresponding track element it will be transformed into two small black triangles then while clicking stretch or reduce the element horizontally Modifications on the surface itself is impossible Ircam documentation Chapter 2 Processing The Inspector window indicates the position dimensions and gain of the selected pro cessing It is possible to modify the gain and time positioning by using this window But it is not recommended at all to modify the frequency positions 2 3 3 General notes to all surfaces 2 3 3 1 Reminder Moving duplicating deleting and saving by Drag and Drop can be applied to an unspecified number of surfaces of any type 2 3 0 2 Selection of several surfaces In addition to the usual method holding the shift key the selection of several surfaces on the sonogram can be made in the same way as on the Finder with the pointer tool by drawing a rectangle around them It can also be done with the lasso tool it is not necessary to include them completely 2 3 3 3 Gain lt is possible to give the same gain at the same time to several surfaces rectangular or
16. processes which do not appear on the sonogram as well as surfaces select them on the track then press backspace key or choose Clear from the Edit menu To select all the processing choose Select All Treatments in the Edit menu 2 9 Multiple Processing You may have noticed that the processes can overlap In fact they can be overlapped and defined in no matter which order AudioSculpt will use them all and sound processing will be done in one time Tip It is preferable to carry out the least possible successive number of processing in SuperVP It is thus advised to save your processing see chapter 4 as a whole in order to modify them again and to be able to apply them to the original sound file Important Do not forget that the gains are added when several filterings overlap Be careful with overlapping several processes which could result in conflicts Tip Reminder Displacement duplication deletion and saving by drag and drop can be applied to an unspecified number of processing of any type Invert Replicate in Time and if the filtering which was selected allows it Replicate in Frequency functions can be applied to an unspecified number of processing 2 10 Calculation of processings 42 2 10 1 Calculation on the totality of the sound Process Treatments To launch the processing choose Process Treatments in the Processing menu This command will be marked in gray as long as a processing command h
17. the other hand for the expert user who would like to consult them they are text files which can be sometimes extremely long and which can also be edited with any text processor such as BBEddit and who would like to modify them in order to use them again in a command line processing it is necessary to move them in another directory see chapter 9 1 audiosculpt listes ircam fr 44 Ircam documentation Chapter 3 The sequencer 3 1 The sequencer s tracks The tracks zone 4 of the AudioSculpt window represent the processing including their duration which is ordered in time The track header is as follows The two buttons are not active yet If you have defined several identical processes they will be added on the same processing track 2 Ga pa a A 4 5 1 4 125 2 4 eo 5 4 Bt eal 4 4 A second type of processing automatically opens a second track Note If you return to a type of processing which has been already used a new track will be created Note Even if you deleted all the elements of one or more tracks a new processing will be added on a new track Note If you open a fichier trt containing processings which has been already saved one or more new tracks will be opened Ircam documentation 45 Chapter 3 The sequencer Note It is not possible yet to remove a track even if it is empty Note You can move any element on any track with any tool This is possible with an unspecified number of elem
18. the sonogram polygonal or freehand A polygonal surface is obtained by positioning the tool wherever you want for the first point then by clicking once and by moving the tool at the location of the second point Again by clicking once the same procedure can be repeated Double click will close again the polygon Ircam documentation Chapter 2 Processing 1 as 1 4 1 5 2 6 FE It is possible to move a point using the pointer tool this one is transformed into a red cross when it reaches a point You can click on it to move it It is possible to create a new point by using the pointer tool this one is transformed into a black cross when it touches a line You can click on it to move it Ircam documentation 15 16 Chapter 2 Processing a5 1 6 1 5 2 6 A freehand surface is obtained while positioning the tool at the location you want by main taining the button of the mouse clicked and then drawing the desired contour The surface will be closed again automatically by a segment once the button of the mouse is released Surfaces are gray At the same time rectangles track elements are created on one same track zone 4 having the same duration of each surface and corresponding icons To give a value in dB to a surface use one of the two methods described for rectangular surfaces by opening the window Edit dB Value by double clicking on the element of the track
19. 0 0 Width Sec 0 358 Replicate in Time and Invert functions are active Ircam documentation Chapter 2 Processing 2 5 1 Breakpoint Filter filter by Bpf In the Treatment menu use Add Breakpoint a window which is well known for Di phone s users will open It is a Bpf editor called sound Bpf type time of beginning and time of end here africa aiff breakpoint 1 22 3 08 in which you can draw and edit the Bpf that represent your filter see chapter 4 t 1 22 3 08 2aaaelHz The frequencies can be found on the horizontal axis the amplitude on the vertical axis The editor limits the gain to 116 dB and the attenuation to 116 dB The window name makes it possible to identify and find it among other opened windows through the Window menu Note It loses its name and becomes simply Breakpoint filter in a general saving process see chapter 4 At the same time on another track the rectangle of the same duration appears and is repre sented by the icon which corresponds to the processing Ircam documentation 31 Chapter 2 Processing africa aiff Pp 44100 0 Samp Sec 166it AIFF 5 23 Seconds Mono BreakPoint Filter Horiz Sec 1 22 Vert Hz 22050 0 End Sec 3 08 Height CHz 22050 0 Width Sec 1 86 To modify a Bpf it is necessary to reopen the window by double clicking on the element of the track or the corresponding surface of the sonogram only for the BreakPoint Filter
20. 23 Seconds Mono Co A A A I 2 Ircam documentation Chapter 1 Getting started To play the sound press on space bar To stop press again Note If one part of the sound is selected see chapter 6 only this part will be played If you want to hear the whole sound the selection will be lost Right now it s not possible yet to put the cursor at any position and start playing from there Note Do not use the sonogram while the sound is played Zone 2 is the sound window It s possible to navigate throughout the sound by using the zoom First it shows the entire sound except the end which is hidden by the vertical slider Zones 2 3 and 4 are provided with an identical horizontal time axis They are synchronized You can move the horizontal slider which will appear on the bottom of the window once you zoomed into a sound In all zones you will find a small triangle which can be used to close the windows africa aiff Pp 44100 0 Samp Seo 16Bit AIFF 5 23 Seconds Mono 4 5 sec Ircam documentation 3 Chapter 1 Getting started The size of zones 1 2 and 3 can be adjusted by bringing the pointer on the bar located between two zones o K When you click the pointer will become a hand holding the bar and will allow you to move it upward or downward The same function exists to adjust the widths of the sonogram and the spectrum Note In this case it is not advised to use it to its extreme position
21. 4 1 Constant TimeStretching expansion compression In the Treatment menu choose Add Constant TimeStretch The following dialog box will open and allows you to choose the coefficient of expansion compression Constant Time Stretch Scale Factor C The threshold values are 0 01 for compression and 10 for expansion if you exceed these limits the number will be automatically corrected A rectangle of the same duration carrying the corresponding icon of the processing track element will be created africa aiff Pp 44100 0 Samp Sec 166it AIFF 5 23 Seconds Mono FF To modify the coefficient it is necessary to reopen the dialog box by double clicking on the the track element You can move readjust or duplicate the rectangle thus the processing itself on the track in the same way as it is done with surface elements You can also modify your processing by using the Inspector palette Ircam documentation 23 24 Chapter 2 Processing The Replicate in Time and Invert functions are active The Invert function gives the opposite coefficient X 1 y 2 for 0 5 for example 2 4 2 Constant Transposition In the Treatment menu choose Add Constant Transposition The following dialog box will open and allows you to choose your parameters Constant Transposition ie By perfect fourth up Down Le Time Correction Values can be entered in Cents or interval box enable
22. 7 Email palumbo ircam fr Comments or suggestions to the editor Karim Haddad Marketing and Communication Dept IRCAM 1 place Igor Stravinsky F 75004 Paris FRANCE Phone 33 1 44 78 16 05 Email haddad ircam fr For more information http www forumnet ircam fr Table of Contents iio eee nn aa aa aaea set aie De encens aient i A a a A dd eee mnn ones VAIO en nl nan nn a aes aNemuadtatiat e nn ee ER een 1 dl Important NO IC iras e A ib 1 1 2 Staring AUGIO SGU OU sii a o EE 1 13 AUCIOSCUIPES WIN Leo 1 1 4 NE SONOOIAlN tico ironia i n 3 A A ee eee 4 AAA nn a e On o 4 Lhe Me 1001 Palette Tools ua aaa 5 O A 6 1 9 The nspecior WINdOWissvesasias aio 7 2 POCOS A A A AAA AA AAA AAA A Ai 9 2 NOMAZI ii ti ies od 9 2 2 General information iii 9 PE EEEE A S ERE E E E EE a 9 2 3 1 Rectangular surface tool 10 219 2 Free SUMACE TOO ature aa en iles 11 2 3 3 General notes to all surfaces ooooncccccoconncnnonnonnnnncnnnnnnnononannnnnononaconnnnnns 12 A ROMINOOF RE e NN fn en 12 2 3 3 2 Selection of several surfaces 12 A 3 AO Le OR NP D ae ee 13 2 3 3 4 Replicate in Frequency 13 23430 Replicate IN TIME atacada rt 13 220 O Lo Y LL a E a ne nee ed un ae 14 24 Other constant DIOCESSES Li 14 2 4 1 Constant TimeStretching expansion compression 15 2 4 2 Constant rans posil secano nes 15 2 49 GONSIan
23. Calculation of one part of the sound Process Selection It is possible to calculate only one part of the sound while using the corresponding processing After having selected the desired region choose Process Selection in the Processing menu This option will be marked in gray as long as one part of the sound hasn t been defined Any tool can be used except the magnifying glass for the sound window or only with the cursor tool for the sonogram Ircam documentation 43 Chapter 2 Processing 2 10 3 AudioSculpt and SuperVP messages Note If SuperVP detects an error AudioSculpt will warn through two alert dialogs For example SupervVP Error Overflow of valid sample range detected in channel 1 try with normalization 0 SVP returned an error AS cannot finish command In most of the cases this kind of error can be corrected in the example above the sound you used requires checking the Normalize Output option if not please contact us in order to report the bug The AudioSculpt 2 0 VP console can give you some interesting information 2 10 4 temporary files The files generated by AudioSculpt for SuperVP are temporarily stored in the temp direc tory They will be immediately replaced whenever you make a calculation of the same type They will be deleted forever if you quit AudioSculpt It is completely useless to keep them they will be regenerated during the next calculation if you save the processing On
24. Ircam Centre e Pompidou Software Documentation AudioSculpt 2 User s manual by Alain LITHAUD AudioSculpt 2 User s manual Edited by Karim Haddad Published Date 18 02 2003 19 25 This manual can not be copied in whole or part without the written consent of IRCAM This manual was written by Alain Lithaud and was produced under the editorial responsibility of Karim Haddad Marketing and Communication Dept IRCAM AudioSculpt was conceived and programmed by Philippe Depalle Chris Rogers Alberto Ricci David Ralley David Ralley Marc Locascio under the supervision of Xavier Rodet SuperVP was conceived by Philippe Depalle and programmed by Philippe Depalle Gilles Poirot Chris Rogers Jean Carrive Axel Roebel The analysis algorithm models where conceived and designed by Xavier Rodet Philippe Depalle Guillermo Garcia Ernst Terhardt Boris Doval Axel Roebel This documentation corresponds to version 2 01 of AudioSculpt Sept 2002 edition Apple Macintosh M is a trademark of Apple Computer Inc AudioSculpt M is a trademark of IRCAM SuperVP is a trademark of IRCAM Copyright O 2003 by IRCAM All rights reserved The use of this software and its documentation is restricted to members of the IRCAM software users group For any supplementary information contact Marketing and Communication Dept IRCAM 1 place Igor Stravinsky F 75004 Paris FRANCE Phone 33 1 44 78 49 62 Fax 33 1 42 77 29 4
25. O NO OK NO NO NO NO OK NO NO NO NO NO OK NO NO NO NO OK NO NO NO NO NO OK NO NO NO OK NO OK Ircam documentation Appendix B SuperVP Help Filter module description Note This document corresponds to the output of supervp hf command SuperVP IRCAM 1990 2002 version 2 03 compiled by roebel for 1686 Linux 2 4 9 13smp on Mon Sep 9 12 09 52 CEST 2002 bande applies a band pass band stop filter with possibly time varying band edges The parameter file contains multiple lines of Example time num bandtype 0 El f2 secs num time positions description in time num number of band edge frequencies to follow each pair of frequencies consitutes a band so num has to be even bandtype bands given are pass 1 or stop 0 bands Fa num frequencies that specify the edges of the alternating pass stop bands included into the band are those freg bins that are min edgel edge2 lt freq lt max edgel edge2 the order of the edge frequencies of a single band may change order so that the band may be self intersecting For time varying filters only the fi entries may change with time If time of first last lines are within the sound the respective values are extrapolated without changes to start end of sound breakpt This filter applies a piece wise linear description of a time varying or constant frequency response specified in dB rad The parameter may contain an ascii or binary description of the filte
26. SS Examples AfO fm100 fM1000 F2500 sn60 Af0 fm10 sn25 formant dpo nnumber lpc order formant detection from a spectral envelope computed via 1pc number is the max number of formants to detect Def 15 in frequencial order no blank between n and value order is the lpc order 45 Se Example Aformat_lpc n3 10 formant_ced nnumber ced order formant detection from a spectral envelope computed with discrete cepstrum number is the max number of formants to detect Def 45 in frequencial order no blank between n and value order is the ced order 45 SSS Example Aformant_ced n16 55 ced_inv order discrete cepstrum analysis with envelope inversion Use it like CED analysis but only for inverse filtering see G option Order is the number of pole Def 30 ee Example Aced_inv 50 Please read O section for the formatting of the output data D coefficient Def 1 or D lt filename gt constant or time varying time stretching Apply time dilation to input sound aS Examples D2 0 dilation of 2 duration is doubled D0 5 compression duration will be divided by 2 Ircam documentation 69 Appendix A SuperVP Help parameter files are used for time varying operations The files contain multiple lines indicating time dilate coefficient The entries are linearly interpolated to derive the time dependent dilation The dilation coefficient before the first and after the last file entry is extrapo
27. Sculpt processes the sonogram of the left channel AudioSculpt plays only the left channel BUT AudioSculpt processes the two channels Ircam documentation 59 60 Chapter 7 Stereophonic sounds lrcam documentation Chapter 8 AudioSculpt and MacOS X AudioSculpt runs under Mac OS X 10 2 Jaguar BOO rav cord y 4 100 0 Samp Sec 16Bit AIFF 16 49 Seconds Stereo A certain number of errors still remain but can also depend on the machine which is used and as well as its configuration Small problems related to the display still remain The cursor does not always appear during the playing Copy Paste and Drag and drop in the console can cause some problems Constant TimeStretch and Constant Transposition won t work if the whole sound has been selected Ircam documentation 61 62 Chapter 8 AudioSculpt and MacOS X lrcam documentation Chapter 9 command lines For expert users it is possible to launch processing for SuperVP directly in the command line Just write or paste or drag and drop a command line in the current AudioSculpt 2 0 VP console and validate it by using the Enter key the calculation will be launched AudioSculpt 2 0 Untitled Task SuperYP Processing AudioSculpti1 supervp t Z U S HallStreet HD Desktop FoldertAudioSculpt fiSoundstafrica aiff total time 6 12 seconds AudioSculpti2 supervp t Z U S HallStreet HD Desktop Folder tAudioSculpt f Sounds afr
28. Sound noise aiff Cymbal de FF E is Show Analysis Parameters x Ircam documentation Chapter 2 Processing Source Filter synthesis Filtered Sound Filtering Sound 7 Show Analysis Parameters window Size 2048 Fundamental Frequency 107 i Automatic e Automatic Window Step O Manual ase window Type Blackman Analysis Type FFT LPC order FFT Size 2048 x vf Normalize Output Synthesis window Type Blackman Factors Settings Cancel The output is normalized by default This is the result of the synthesis filtered sound noise aiff filtering sound Cymbal AIFF noise aiff 44100 0 Samp Sec 16Bit AIFF 13 61 Seconds Mono k 15 5sec l Note The filtering sound will have the size of the filtered sound 2 8 Selection and removal of processes To remove one or more surfaces select them on the track or the sonogram in the usual way using shift key for multiple selection then press backspace key or choose Clear from the Edit menu The pointer tool also allows you to choose several ones in the sonogram The lasso tool see section 1 7 is used only in the sonogram and allows you to choose several surfaces BUT it also selects other processes which will appear only on the tracks Ircam documentation 41 Chapter 2 Processing With the lasso tool you just need to touch a process in order to select it selecting all elements IS not necessary To remove one or more
29. ame trt by default and where to save it The default directory is called Treatments in the applica tion s directory You can of course choose any other directory It is recommended to keep the trt extension It will be now possible to reload it in the AudioSculpt window while reopening it or to apply the same process to another sound For this after having opened a sound go in the File menu choose Open Filter and again choose in the dialog box a trt file The processing will be displayed in the window and eventually added to the current processes You can save this file at any time go in the File menu and choose Save Treatment As Important You can save one or more or all elements by Drag and Drop the selected track elements on the Finder All elements characteristics horizontal and vertical positions gains co efficients Bpfs etc will be saved as extrait d AudioSculpt x To use this same set again with the same or any other sound just drop the file extrait d AudioSculpt x on the sonogram You can re name these excerpts as you wish Note For expert users If you save only one element in this way you can open it by a double clicking and you can examine the tables of values You can also drag and drop it in a text document and modify it When this new content is dragged and dropped on the Desktop it is possible to use again the modified element 4 2 Bpfs At any moment Bpfs can be saved
30. ample for single surface with 40dB attenuation 0 0 4 5 0 40 1000 2000 1000 2000 2000 3000 2000 3000 mW NP O Time and frequency vaues have to be non decreasing Ircam documentation 81 82 Appendix B SuperVP Help Filter module description Ircam documentation
31. another track Ircam documentation 33 Chapter 2 Processing a lt _ fhca 01 Pp 44100 0 Samp Sec 166it AIFF 5 23 Seconds Mono A Horiz Sec 3 063 Vert Hz 21200 0 End Sec 3 89 Height Hz 1 21500 0 Width Sec 0 827 Const Factor ml zl LE The modifications are done as for any Bpf Replicate in Time and Invert are active The Invert function gives opposite Bpf 2 5 4 Dynamic Formant Important This processing does not work with this version of SuperVP However if you start the calculation SuperVP s will start up and stop without giving any error message It is then necessary to click on the console s Stop button A empty window Untitled will open which has to be closed The general performance is the same as in Constant Formant filtering In the Treatment menu choose Add Dynamic Formant The following dialog box will open and allows you to choose your parameters Ircam documentation Chapter 2 Processing Formant filter Number of Formants Center Frequency Hz of first formant Multipication factor trom 1st formant Arnpliude dE Bandwidth Hz of each formant If you ask for a positive gain AudioSculpt warns you that the output should be normalized After having defined the parameters and having clicked on OK the Bpf editor window will be displayed and will show the formantic filters which you can modify as usual The correspon
32. ant Multipication factor frorn 1st formant For amplitudes gt O be sure to turn on Ampliude dE normalization when processing Bandwidth Hz of each formant A rectangle of the same duration carrying the corresponding icon of the processing track element will be created africa aiff Pp 44100 0 Samp Sec 16Bit AIFF 5 23 Seconds Mono D FF To modify the processing it is necessary to reopen the dialog box by double clicking on the track element You can move or readjust time wise or duplicate the rectangle therefore process on the track in the same way as surface elements You can also move the selection on the sonogram vertically with the pointer tool but the position of the formants will not be changed You can also modify your processing by using the Inspector palette Replicate in Time and Invert are active The Invert function changes the sign of gain Ircam documentation Chapter 2 Processing 2 4 4 Band In the Treatment menu choose Add Band The following dialog box will open and allows you to choose your parameters Band Filter e Band Pass Band Re ject Humber of Bands Width of Bands Hz Starting At Hz Hz Between Bands A rectangle of the same duration represented by an icon which corresponds to the process ing track element will be created africa aiff Pp 44100 0 Samp Sec 166it AIFF 5 23 Seconds Mono p Yo
33. asn t been chosen A dialog box opens and allows you now to choose your parameters Ircam documentation Chapter 2 Processing Processing Parameters window Size 2048 Fundamental Frequency 107 Yindow Step __ ery Size 2048 ie Automatic EE Normalize Output Phase Synchronous Process ing _ Verbose Output le Analysis window Type Blackman aie Synthesis window Type Blackman Reset Parameters Cancel Process Factory Settings Note lt is better not to normalize the output default value except if AudioSculpt warned you before during the choice of the parameters Note If the option Verbose Output box wasn t selected calculation is remarkably accelerated If you do choose to select this option for expert users flag v all information will be displayed in SuperVP s console Note The option Phase Synchronous Processing has to be selected for expert users flag U unless you know what you are doing When you click on Process AudioSculpt asks you under which name here africa aiff by default and where you would like to to save the result After having clicked on OK the console of AudioSculpt will open in the foreground and will allow you to follow the calculation progress Once processing is finished the console will appear in the background and the sonogram containing the processed sound will be displayed 2 10 2
34. ching between these palettes Tools Inspector and Color Palette 1 8 Spectrum and tuning fork When playing a whole sound or a part of a sound whose sonogram is opened the spectrum display will follow the movement of the cursor africa aiff Pp 44100 0 Samp Sec 16Bit AIFF 5 23 Seconds Mono Positioning the tuning fork tool into a sonogram the spectrum which corresponds to this particular moment in the sound will be displayed The active part of the tuning fork is the small bullet located below 8 Ircam documentation Chapter 1 Getting started africa QT Fa Pp 44100 0 Sampresec 16Bit AIFF 5 23 Seconds Mono A pure sinusoidal sound is played using the frequency and the amplitude which corresponds to the position where has been clicked in the sonogram lts frequency and its amplitude are indicated in the Inspector Window see section 1 9 o w W X gt gt gt arica 1 gt H E Pp 44100 0 SampreSec 16Bit AIFF 5 23 Seconds Mono 2 514 1323 333 31 0 1 9 The Inspector Window This floating window will open ounce you clicked on the item Show Inspector in the Window menu Note The Tab key allows you to switch between these palettes Tools and Color Palette This window gives detailed information about the position and the values of processing and the tuning fork Ircam documentation 9 Chapter 1 Getting started It displays information relating t
35. ding element will be put on another track 35 Ircam documentation Chapter 2 Processing africa aiff Pp 44100 0 Samp Sec 166it AIFF 5 23 Seconds Mono Hor iz Sec 3 97 Wert Hz 22050 0 End Sec 4 49 Height Hz 1 22050 0 Width Sec 0 319 Gain dB The modifications are done as in any Bof Replicate in Time and Invert are active The Invert function changes the sign of gain 2 6 the pencil Important This function is not yet completely implemented and its performance is not the same as in the well known pencil found in 1 x AudioSculpt s versions For this processing the display of the sonogram is essential In the Tools floating palette choose the tool pencil and at the same time choose the thickness of the stroke if the default value is not appropriate 36 Ircam documentation Chapter 2 Processing 1 pixel 2 pixels 3 pixels 4 pixels 3 pixels 6 pixels f pixels 8 pixels By default the thickness of the stroke is 6 pixels and the attenuation of 50 dB Tip These two default values can be modified go in the preferences Edit menu Preferences item and click on the Pencil Tool tab Tip The thickness of the stroke is not taken into account in the preferences it is better to define it in the corresponding menu Tip By holding the shift key it seems that it s possible to draw a rectilinear displacement but actually no object is created Tip By holding the opti
36. during a work session on the condition that it appears in the foreground go in the menu File and choose Save Treatment As or Save Treat ment These are txt type files that you can read and modify in a text editor Note lt is not very useful for the moment since you cannot use them again 4 3 F t files The Fit files contain the image of the sonogram and are stored by default during the calcu lation of the sonogram in the Fft directory Ircam documentation 49 50 Chapter 4 Savings First of all it is necessary to go in the preferences Edit menu in Preferences and to click on Analysis tab Preferences General Environment PencilTool Window Size Window Step Fft Size 2048 Analysis window Type Blackman Analysis Type FFT LI Empty Fft directory on quit File AudioSculpt Prefs lf the Empty Fft directory on quit box is checked the Fft files and also the sonograms will be deleted once the application is closed If not they will be saved lt is useful to keep them if you want that your sonogram is displayed instantly at each new working session or if you created different sonograms of the same sound with each different parameters Once the sound is opened go in the File menu choose Open Analysis and then choose in the dialog box an fft file lt is recommended to keep the fft extension Note There won t be a warning if you open an analysis B starting from a
37. e Supervo Ssou d Tile ssound tile Gmul 27 ACTE Alpe Tny 2 5 Output Elle ggain lt filename gt or gtremolo lt mode gt lt filename gt amplitude modulation gain lt filename gt multiplies output samples with envelope specified in file Ircam documentation 71 Appendix SuperVP Help file contains lines with time envelope tremolo mode filename mode is the type of amplitude modulation sinus carre square wave triangle scie sawtooth wave file contains lines with time depth HE Examples ggain file gtremolo sinus file H lt sample rate gt specifies new sampling rate the header of the sound file will be changed If this option is used don t use A and Z BS Example H32000 Ti lt step gt or Ii lt method gt lt filename gt I lt num mem gt lt step gt specifies analysis step the step for analysis is in samples Def I max 1 min window_size 8 window_size time_dilation 8 Def i step size track 1 length track 2 lenoth track 1 lt method gt is the method for reading parameter file name num same aS giving a numerical value no parameter file mem input is callback only for use in svp library applications sync ordered pairs in parameter file time fundamental frequency dep ordered pairs in parameter file time step value pos sample position in the sound file is given for each window aa Examples 1256 Isync file inplace inplace processing of snd data in input sound f
38. e gain or to any other parameter Ircam documentation africa aiff Pp 44100 0 Samp Sec 166it AIFF 5 23 Seconds Mono p 21 Chapter 2 Processing a _ _ Cd Pp 44100 0 Samp Sec 166it AIFF 5 23 Seconds Mono p F 2 4 Other constant processes These processes are available only if the whole sound or a part of it is selected with any tool except the magnifying glass on the sound window or only with the cursor tool for the sonogram In order to select the whole sound choose Select All in the Edit menu or double click in the sound window zone 2 The processing will be applied to the selected part of the sound The proposed processes can be found in the first part of the Treatment menu Ui Window Aide Add Constant Timestretch Add Constant Transposition Add Constant Formant Add Band Add Clipping Add Breakpoint Add Dynamic Transposition Add Dynamic limeStretch Add Dynamic Formant Invert Constant TimeStretch to apply a variation in the temporal field defined by a constant coefficient Constant Transposition to apply a constant transposition with or without correction of time 22 Ircam documentation Chapter 2 Processing Constant Formant constant filtering of formantic type Band filtering of the type Band band widths or rejection of bands Clipping filtering by Clipping 2
39. e used to create normalized excitation signal with the Gmul mixer If you apply inverse lpc filtering using the same signal for both tracks you create an energy normalized excitation signal that may be used as excitation for an lpc spectral envelope obtained with a second alpc analysis recreating the energy contour of the related second signal See ns truelpc switches for further information Ircam documentation Appendix A SuperVP Help on lpe normalization Sense Example Alpo inv 50 pic theshold nnumber peaks detection threshold is in dB no threshold number is the max number of peaks in the output no blank between n and value Es Example Apic 3 n20 mask list threshold nnumber Terhardt algorithm for Spectral smoothing List TS List Ot words 1 amp freq weight all weight threshold for peak detection is in dB 25dB number is the max number of peaks in the output no blank between n and value see Example Amask amp weight 10 n20 ced order discrete cepstrum analysis Provides a spectral envelope default order is 30 E Example Aced 55 fO fmmin fMmax FFmax snthreshold pitch detection fm is followed by minimum value for pitch in Hertz Def 50 EM is followed by maximum value for pitch in Hertz Def 2500 F is followed by maximum frequency in spectrum Def 7500 sn is followed by noise threshold in dB 50 There is no blank between the parameter name and its value R
40. ed windows will open automati cally Note The tab key allows you to hide or to show the following palettes Tools Inspector and Color Palette Below you will find Add Track allows you to add one by one empty processing tracks Optimize Sonogram allows you to display in full screen the sonogram and the sound window zones 2 and 3 and to return to the original size The corresponding keyboard short cut is commande u Show Grid allows you to open the Grid Edit window where the parameters and the magnetic grid display can be adjusted Below you will find the list of all open windows You can bring to the foreground any window you choose 6 6 Bpf menu This menu appears only when a Bpf editor is opened Ircam documentation 57 58 Chapter 6 Menus Show Points I Show Double Line Resampling Crop On Curves Show Bpf Tools allows you to open the Bpf Tools window with tabs also accessible directly from the Bpf window Show Points allows you to display Bpf points Show Double Line if this item has been selected the Bpf is displayed with a thicker line The others items of the menu do not concern AudioSculpt Important If you choose Resampling which is not related to AudioSculpt an alert dialog is opened and you have to quit the application Ircam documentation Chapter 7 Stereophonic sounds AudioSculpt displays the sound of the left channel Audio
41. end to audiosculpt ircam fr Please try to describe the different steps that caused error messages or bugs if possible join some screen shots That way we can reproduce them in order to fix them Some bugs may occur only on certain software configurations systems or machines communicating those details could also help bug fixing Some functions appear in gray or do not appear in the menus they are still under development For the expert users it is possible to use SuperVP 2 03 for using AudioSculpt s processing starting from command lines see chapter 9 Ircam documentation i il Introduction lrcam documentation Chapter 1 Getting started 1 1 Important Notice Unless your computer is powerful enough it s not recommended to open mono sounds of more than 2 or 3 minute long Beyond this limit the system will slow down the display which uses most of the resources of the machine This could lead to an unexpected failure of the application The processing of SDII sounds doesn t work error message and an unreadable sound file 1 2 Starting AudioSculpt AudioSculpt can be started up either by double clicking on the application s icon or by using drag and drop of a sound file on the application s icon In the first case AudioSculpt will open different windows on the desktop These are already checked in the Window menu see section 6 5 Note The Tab key allows switching between these palettes Tools
42. ents a Tu a mc To lock the time position of an element during its change of track hold the shift key while moving it It is possible with an unspecified number of elements Important Saving the whole processing in fichier trt unfortunately does not save the track changes You can open a new empty track by choosing Add Track in the Window menu 3 2 The sequencer s grid It is possible to display a grid on the sequencer In the Window menu choose Show Grid and the following dialog box will be displayed Edit Grid A Hide Grid Show Grid Ej Snap to Grid Emi H sec beat y With the show grid and hide grid buttons you can choose to display or not to display the grid Steps of the grid are defined in bpm or seconds Snap to Grid makes it possible to make this grid magnetic if one or more elements of a track are moved they will be automatically placed against the leftmost reference mark 46 Ircam documentation Chapter 3 The sequencer When holding the shift key Snap to Grid overrides the locking of position Ircam documentation 47 48 Chapter 3 The sequencer lrcam documentation Chapter 4 Savings 4 1 Processing A process represents all defined elements of a sound all track elements When you close an AudioSculpt window or when you leave the application a dialog box asks you if you wish to save the whole process by choosing its name sound_file_n
43. he result is directed to stdout O lt mode gt lt list gt or O lt mode gt lt file gt lt mode gt is the output type b SOUND modes sa for AIFF 16bit integer soundfile format sa8 sal6 sa24 sa32 select the different sample size in bits SA for AIFC 16bit integer soundfile format sA8 sA16 sA24 sA32 select the different sample size in bits sis for Ircam 16bit integer soundfile format Sir Lor Ircam 32bit float soundfile format sn for NeXT 16bit integer soundfile format srs for raw 16bit integer soundfile Sri Tor Caw o2bDia boat soundfile IMPORTANT default format and packing mode integer or float differ according to the output type a file or a pipe File output those of the input processed sound not normalized Pipe Qu UEput 5 Faw S2DEE float mot normalazed s ANALYSIS Output Modes a for ASCII analysis data output b for binary analysis data output default gO special spectral data file for audiosculpt qg1 392 93 94 95 Output file is created with a Unified File Format binary file header like gabarit file using PE ly LPC CEPSTRES File content is respectivelly t amp t phase t amp phase trtreg amp LrpEsPis gl g2 formats work with gabarit filtering and g4 g5 ones work with the synthesis module with data on input channel g3 format works with both Use these format with Oxx option no more arguments on command line HU ia Ex 0g3 Using other format arguments will print a warning but
44. ica aiff s A new console is created with New Console in Window menu You can use parameter files in particular those which are generated by AudioSculpt see section 2 10 The The command line will be written down on just one line without return carriage console can give you some valuable information about certain remarks or errors re turned by SuperVP AudioSculpt displays those most of the time Note The editor is very basic The console window is limited to 32 KB and so it cannot display the help of SuperVP The editor s window is difficult when it is used for writing Selection copy paste in this window often will cause bad displays In this case it is necessary to refreshed the window by clicking twice on the box on the right side above the window You will find the SuperVP help files and the Filter module description in the appendix section 13 Ircam documentation 63 64 Chapter 9 command lines lrcam documentation Chapter 10 Bugs and Errors 1 You can send your observations and comments to audiosculpt ircam fr Please try to describe the steps that caused the error messages or bugs with if possible some screen shots so that we can reproduce them in order to debug Some bugs may occur only in certain software configurations system or machine please indicate precisely those details This list is not exhaustive If you have a problem with running the application
45. ile Currently only possible for non compressed mono sounds and if no D dilation trans transposition or Ffshift frequency shifting is requested J lt type gt specifies synthesis window type same as the principal track logfile filename sets message output file to filename the filename stderr is treated as special indicator for stderr output Mm lt window size gt or M lt method gt lt filename gt specifies analysis window size the window size for analysis is in samples Def 1024 lt method gt is the method for reading the parameter file name num same aS giving a numerical value no parameter file sync ordered pairs in parameter file time fundamental frequency dep ordered pairs in parameter file time window size SSS SSS Examples M2000 Mdep file 72 Ircam documentation Appendix A SuperVP Help N lt FFT size gt specifies FFT size the FFT size in samples Def 1024 must be greater than window size see Mm se Examples N4096 ENGL 92 A do not normalize output sound file this is default now ATTENTION The use of nn is strongly discouraged Since version 1 75 no normalization is the default behavior and nn flag is no longer supported and wil be swtiched of in future versions See norm flag norm level Def 0 normalize output sound file to level dB below maximum range of the output data type OdB normalization produces data in the range between 1 0 for floating point samp
46. lated keeping its value constant Time varying dilation and transposition may be applied ina single SuperVP call in which case the requested dilation is and the time compensation from the transposition are added The optimal analysis step size is calculated automatically if no 1 option is specified This is recommended especially for time varying dilation transposition You may use the P switch for phase synchronized processing Ff lt filtertype gt lt filename gt specifies filter filtertype is one of bande gabarit breakpt surface fof FITOL Elie denois ESMIEt filename is a file containing filter parameters Multiple filters can be applied during one call to SuperVP use option hf for a desription of available filters and the related parameter file format Example Fbande file G lt cross synthesis type gt filename or lt cross synthesis typer x lt val gt DT EL x lt val Detf lt L Y lt val gt Def 1 y lt val gt Def 1 q lt val gt Def 1 Combine the two different tracks into a single track Suppose SI S2 are the short time FT spectra of the two input channels and SO is the resulting spectrum of the cross synthesis and X x Y y qval is the value specified with flag X x Y y q then the mixer operation tS EOY cross type add transform input spectra into representation using real imaginary part and calculate Ircam documentation Appendix A SuperVP Help SO Xval
47. le format and in the range between 2T N 1 1 for N Bit integer sample format NORMALIZATION Behavior changed If norm option is not given normalization is NOT performed IMPORTANT when normalizing SuperVP uses a temporary file It s length is the same length of the processed sound file when using 32bit floating point packing mode or twice the length when using 16bit short packing mode Temporary file is created in SVPTMP setenv SVPTMP mytemporarydirectory When SVPTMP is not set SFDIR is used If SFDIR is not set current directory is used If the choosen directory is not writable then var tmp is used ns requests spectral normalization for analysis output which results in amplitude values to be below 1 Def no normalization P switches on phase synchronization Def no phase sync mode for time dilation see D It generally improves amplitude reproduction and decreases the phasiness when processing non stationary sounds This switch will be ignored if no dilation is requested Rr lt samplerate gt specifies sampling rate used when performing resynthesis on analysis data file resS lt value gt specifies stopband attenuation of the interpolation filter used for resampling Def 70dB The window size and oversampling of the interpolation filter are automatically adjusted to achieve the requested attenuation of aliasing resulting from the interpolation process To prevent excessive filter sizes attenua
48. m The rectangle surface tool is gray and at the same time a rectangle of the same duration appears on the first track zone 4 showing the corresponding icon of the processing africa aiff Pp 44100 0 Samp Sec 16Bit AIFF 5 23 Seconds Mono Surface Filter Horiz Sec 0 664 Mert CHz S220 771 End Sec 1 1 741 Height Hz 2130 631 Width Sec 1 1 077 Gain dB a To give a value positive or negative in dB double click on the rectangle of the track opens a dialog box in which you can type your value gt Edit db Value Ez dE Walue E Note The value limits are 116 dB and 116 dB if you exceed these limits the value which will appear will be 116 dB or 116 dB Another possibility position any tool except the tuning fork on the surface placed in the sonogram By pressing on the control key then by keeping the mouse button pressed and by moving this one the values can be scrolled The limits are 116 dB and 116 dB 12 Ircam documentation Chapter 2 Processing You can move as you like the surface placed on the sonogram by using the pointer tool the rectangle track will follow You can temporally move the rectangle of the track using any tool By pressing on the option key the pointer tool allows you to copy the surface and to place it wherever you want While copying the track you may choose only the temporary position of the copy while copying the sonogram you may choose the tempora
49. n with 6dB of headroom and maximum dE value of 116d8 will normalize to 110dB Of course Normalization is done in relation to the maximum which is generally zerodb the use of 116 dB corresponds to the gain obtained during processing 2 2 General information There are two processing types Constant processing Surfaces filtering by rectangular or free surfaces Surfaces can only be accessed by using the Tools floating palette The following processes are accessible only by the Treatments menu and only if the whole of a sound or part of it is selected Constant Time Stretch Expansion compression with constant coefficient Constant Transposition constant Transposition with or without time correction Constant Formant filtering by Formant Band Bana type filtering band pass or reject Clipping Clipping filtering Bpf processing accessible only from the Treatments menu and only if the whole of a sound or part of it is selected Breakpoint Bof filtering Dynamic Time Stretch Expansion compression with variable coefficient Dynamic Transposition Time variable Transposition Forming Dynamic variable filtering by Formant Note It is not necessary to display the sonogram to start processing Ircam documentation 17 Chapter 2 Processing 2 3 Surface filtering 2 3 1 Rectangular surface tool With the rectangle surface tool you can draw a surface on the sonogra
50. ncil tool is a surface and that if two strokes are crossed or are overlapped the gains will be added up One should be careful using many strokes Ircam documentation Chapter 2 Processing Example noise aiff Pp 44100 0 Samp Sec 166it AIFF 13 61 Seconds Mono a noise aiff qut Pp 44100 0 Samp Sec 166it AIFF 13 61 Seconds Mono By the way using a great number of strokes will require much time for AudioSculpt because of the creation of all corresponding files 2 7 Source Filter Synthesis The opened sound in the foreground is the filtered sound In the Processing menu choose Source Filter Synthesis The following dialog box will open and allows you to choose the filtering sound while clicking on the icon which represents a directory Ircam documentation 39 40 Chapter 2 Processing Source Filter Synthesis Filtered Sound Filtering Sound gt Show Analysis Parameters Open AudiosSculpt Modification lama chine aiff 1407400 Duration Er Sec El Clarinet 310492 Sample Rate 44100 0 AR Clarinet AIFF 11 10 95 Data Format 16 Bit Integer File Format AlFF Mum of Ch Mono Het Cymbal al FF o 10 95 Mum Frames 141994 E noise aitt 14 03 02 MoiseT rou altf 21 04 02 Masquer l aper u Cow _ fie By clicking on the triangle Show Analysis Parameters you have access to various pa rameters related to source filter synthesis Source Filter synthesis Filtered Sound Filtering
51. nsposition opens the dialog box allowing to adjust transposition Constant Add Formant opens the dialog box allowing to parameterize the filter by For mant Add Band opens the dialog box allowing to parameterize the band filter Add Clipping defines Clipping filter parameters through the Color Palette For the following items if the whole sound or part of it is selected the Bpf editor opens a window which allows you to edit the corresponding Bpf Add Breakpoint edit a Breakpoint Filter Add TimeStretch edit a Bpf expansion compression Add Transposition edit a Bpf Transposition Add Dynamic Forming edit a Formant multi Bpf DISABLED IN THIS VERSION Invert allows you to revert selected filters works only with certain filters 56 Ircam documentation Chapter 6 Menus 6 5 Window menu WW Bot Aide Show Tools Show Inspector de Show Color Palette de Add Track Optimize Sonogram de IL Show Grid africa aiff de 1 africa alf breakpoint 0 39 0 48 2 AudiosSculpt 2 0 VP dh 3 Show Tools displays the floating palette tools if the item is checked Show Inspector displays the inspector s floating palette if the item is checked Show Color Palette displays the palette allowing to select the depth level of gray of the sonogram i e the sensitivity of black and white if the item is checked When a new session of AudioSculpt is opened the check
52. o one element selected on a track Horiz Sec 2 675 Wert hz 22020 0 End Sec 3 5 Height Hz 2050 0 Width Sec 0 525 This palette is very useful for measuring with precision the parameters of a processing ob ject To modify a parameter s value click to select it then type the new value and press return or enter to validate That way its very simple to position and measure with great precision an object by defining two of the three parameters starting time Horiz ending time End or length Width It also gives you access to the gain the coefficient of expansion compression etc According to the process in use the change of certain parameters will not affect the process itself but only its display on the screen For example for a expansion compression the modification of the frequency values Vert and Height does not have any effect to the result In Bpf processing the variable is marked nan and cannot be modified Ircam documentation Chapter 2 Processing 2 1 Normalization Normalization is applied to the total length of the soundfile The Normalize function can be found in the Processing menu lt opens up a dialog box which allows you to adjust in dB the remaining margin after normalizing Mormalize Headroom after de normalization The Normalization headroom refers to the number of de below the maximum that the sound will be normalized to Thus normalizatio
53. on 29 Chapter 2 Processing 2 5 Processing using Bpfs 30 The Bpf processing is available only if the whole sound or part of it is selected with any tool except the magnifying glass for the sound window for the sonogram only with the cursor tool To select the whole sound choose Select All in the Edit menu or double click in the sound window zone 2 The processing will be applied to the selected sound part The processings available in this version are as follows you will find them in the Treatments menu Ue Window Aide Add Constant Timestretch Add Constant Transposition Add Constant Formant Add Band Add Clipping Add Breakpoint Add Dynamic Transposition Add Dynamic limeStretch Add Dynamic Formant Invert Breakpoint Filter to apply a breakpoint filtering on the duration which was selected Dynamic Transposition to apply a transposition defined by a Bof Dynamic Time Stretching to apply a variation in the temporal field defined by a Bpf Dynamic Time Formant formant filter type defined by a Bpf The Inspector window shows the position and dimensions of the processing for each Bpf that was selected and makes it possible to modify these parameters The other parameters can be modified only if they are constant if not they are will be validated as nan BreakPoint Filter Horiz Sec 1 756 Wert Hz i 22050 0 End Sec 2 336 Height CHz 2205
54. on key you reverse the value of the pencil the gain changes its sign Now you can draw something on the sonogram Ircam documentation 37 38 Chapter 2 Processing africa aiff Pp 44100 0 Samp Sec 166it AIFF 5 23 Seconds Mono Pencil Filter Horiz Sec 2 298 Wert CHz 1406 292 End Sec 3 757 Height Hz 1067 143 Width Sec 1 469 S Gain dB 30 Line Pixels E This element behaves EXACTLY like a rectangular surface on the sonogram horizontal and vertical displacement horizontal and vertical readjusting You can move or temporally readjust or duplicate the rectangle thus process on the track in the usual way You can also modify this processing by using the Inspector palette you have now access to time parameters such as gain and thickness of the stroke are accessible To change the gain position any tool except the tuning fork on the rectangle placed in the sonogram Press on the control key then hold the mouse button and move this one The values will scroll By double clicking on a track element the Edit Pencil Filter dialog box allows you to change the gain and thickness of the stroke Edit Pencil Filter dE alue Line Thickness F CA Replicate in Frequency is of course active Replicate in Time and Invert are active The Invert function changes the sign of gain NEVERTHELESS it should be well understood that at the present time EACH stroke of the pe
55. on the right because the spectrum will not be displayed any more 1 4 The sonogram In the menu Processing choose Sonogram Analysis A Treatments Wind Sonogram Analysis Process Treatments Process 5election Normalize Source Filter Synthesis Convertto Surface Replicate in Frequency Replicate in Time Add markers A dialog box opens and you can choose your parameters Analysis Parameters Window Size Fundamental Frequency Window Step FFT Size 2048 Y Automatic O Manus analysis Type Analysis Window Type Verbose Output Reset Parameters Save in Preferences Cancel Do Analysis Factory Settings Ircam documentation Chapter 1 Getting started Note By default the box Verbose Output is not checked this allows fast calculation If you check this option for expert users flag v all information will be displayed in SuperVP s console When you click on Do Analysis a dialog window will ask you under which name here africa fft by default and where you want to save the Fft file After having clicked on OK the console of AudioSculpt will open in the foreground and will allow you to see the progress of the processing After that the console will appear in the background and the sonogram will be displayed africa aiff 44100 0 Samp Sec 16Bit AIFF 5 23 Seconds Mono By default this one displays the band ranging between 0 and 7000 Hz the section where there a
56. onds Mono p Please note that this function is valid only for surfaces and the pencil 2 3 3 5 Replicate in Time This function can be found in the Processing menu It is used for duplicating selected surfaces along the time axis AA Treatments Wind Sonogram Analysis D Process Treatments dT Process Selection Normalize Source Filter Synthesis Convert to Surface Replicate in Frequency Replicate in Time Add markers It is necessary to choose the number of replicates and their time shift on the right positive time in seconds or on the left side negative time in seconds Ircam documentation 19 20 Chapter 2 Processing Replicate in Time Replicate Times with offset of seconds Align to markers Ey Please note that this function is valid for any processing africa aiff Pp 44100 0 Samp Sec 16Bit AIFF 5 23 Seconds Mono p F 2 3 3 6 Invert This function can be found in the Treatments menu It allows you to change the gain sign of selected surfaces Ircam documentation Chapter 2 Processing MS Window Aide Add Constant Timestretch Add Constant Transposition Add Constant Formant Add Band Add Clipping Add Breakpoint Add Dynamic Transposition Add Dynamic limeStretch Add Dynamic Formant Invert Please note that this function is valid for any processing see below except for Clipping lt will react to th
57. or breakpt file using amplitude mode 0 41 0 04 T00 0 500 30 1000 30 4000 0 Bso 10757 OD 00 30 LOO 501 A000 10 0000 This file would attenuate the amplitudes in the region between 100 and 4000Hz to 100 and 5000Hz respectively clip apply clipping filter within time slices of the sound The clipping filter sets all amplitudes of a spectrum below the lower threshold to zero sets the amplitudes above the upper threshold to the upper threshold and transforms the remaining region in between 0 and upper thershold A clipping filter can be described in two modes First mode describes a clipping filter operating on the whole sound file Example low_threshold high_threshold this will result in applying clipping with the given parameters globaly for the whole sound or Example low_threshold high_threshold start_time end_time this will apply the respective clipping parameters only within the specified time region Multiple lines may be specified For overlapping regions the first region takes precedence thresholds parameters are assumed to be in dB with respect to a normalized amplitude spectrum max OdB 78 Ircam documentation Appendix B SuperVP Help Filter module description denoise clipping all amplitudes inside a time frequency surface that are below the specified clipping value to zero The parameter file is equivalent to the surface filter with the gain parameter specifying a cliiping level in dB relative
58. quency and amplitude value not suitable for filtering 5 pair of real imaginary value not suitable for filtering All data points are in 32 bit float format The phase interpolation is done after phase unwrapping Therefore the maximal spacing of synthetic phase transfer functions has to be selected such that phase differences of the phase transfer function between the bins are smaller then PI surface Applies constant gain to a piece wise linear surface of the spectrogram The parameter file contains multiple lines for each surface and may contain multiple surfaces General syntax 80 Ircam documentation Appendix B SuperVP Help Filter module description First line of a surface start_time num end_time gain_dB start time end time the minimum and maximum time covered by that surface num the number of lines to follow describing the shape of the surface gain_dB The fixed attenuation amplification for this surface surface description is given by num lines of format time low_freq high_freg time specifies the time the description applies low_freg high_freq specify the frequency boundaries end points belonging to the surface for the given time The description specifies a piece wise linear bounded surface in the time freguency plane The start_time end_time locations of the surface are centered between the first and last frequency boundary pairs Due to this format only convex surfaces can be described Ex
59. r In the binary case the file has to start with the 8 charac ters BPBINARY The parameter file consists of sets of numbers describing the filter as a break point function for a given time as follows time mode numpairs freq value freq value time float time position to apply following filter response definition mode int filter mode 0 amplitude 1 phase 2 amplitude and phase mode parameter can not change within a single file Ircam documentation 1 Appendix B SuperVP Help Filter module description numpairs int number of freq value breakpoints to follow in current line freg value float depending of the selected mode pair or triple of values describing a break point of the frequency response freg Hz and amplitude dB for mode O freg Hz and phase rad for mode 1 freg Hz amplitude dB and phase rad for mode 2 The type given in parenthesis is the data type of the entries for the binary parameter file The break point description is extended over the full frequency range using a constant extrapolation of the start and end break points The envelopes amplitude and phase values for each frequency bin are linearly interpolated over time and extended to the start and end of the file using constant extrapolation For correct interpolation the phase values are required to be unwrapped For instantanous changes with respect to time or frequency you may give the same frequency or time value twice Example f
60. re the most interesting elements By double clicking on the vertical scale the totality of the sonogram between 0 and 22050 Hz will be displayed The value of the different gray tones can be modified in the Edit Colors floating palette To open this check Show Color Palette in the menu Window see section 6 5 Default settings are 10 dB for black and 40 dB for white By using the Tab key you can choose to hide or to show this palette as well as each of the two others Tools and Inspector In the Window menu Optimize Sonogram toggles the display of the sonogram and the sound window zones 2 and 3 in full screen mode The corresponding keyboard short cut is command u 1 5 Scales By doing Control click on a scale you can open a contextual menu proposing a choice Time scale sound sonogram tracks Bpf for transposition and expansion compression Ircam documentation 5 Chapter 1 Getting started Seconds Milliseconds Ticks Samples HH MM 55 Frequency scale sonogram and spectrum Bpf filter 14846 Ellohertz Transposition scale Bpf transposition cents Transposition Amplitude scale linear for the sound window and logarithmic for the Bpf filter As for the spectrum the scale is in dB although the indications of value and type linear are incorrect 1 6 Zooms These actions are valid for all scales horizontal and vertical for AudioSculpt window and
61. red rectangle is not of a high degree of accuracy The scale of the amplitudes is only linear for the sound window and only logarithmic for the Bpf filter As for the spectrum the scale is in fact in dB although the indications of value and type linear are false Note There won t be any warning if you open an analysis B from a sound A if it is too long the sonogram takes the size which has been indicated but will not be correct audiosculpt listes ircam fr 65 Ircam documentation 66 Chapter 10 Bugs and Errors If one part of the sound is selected only this part will be played If you want to hear the whole sound you will lose the selection It is not possible yet to put the cursor somewhere and to start playing from this place Do not use the sonogram while the sound is played While reading a sound file the cursor will be slightly shifted compared to the signal The inspector Window does not give any information about the pointer and the selection The spectrum will only appear with the tuning fork or when the sound is played It is not possible to move vertically the tuning fork The window of the console is limited to 32 KB and therefore it cannot display the SuperVP s help The editor s window is difficult to use for writing Selection copy paste in this window will often cause bad displays In this case the win dow has to be refreshed this is done by clicking twice on the upper rightmost box of the
62. ry position and the frequency position of the duplication To readjust the surface place the end of the pointer tool on the edge of this one it will be transformed into two small black triangles By clicking you can enlarge or reduce the surface vertically or horizontally The same procedure on the tracks will allow you to modify in time a a5 1 6 1 5 2 6 2 5 The Inspector window indicates the position dimensions and gain of the processed selected surface Ircam documentation 13 14 Chapter 2 Processing Surface Filter Horiz Sec 1 497 Vert Hz 5252 252 End Sec 2 314 Height Hz 3914 415 Width Sec 0 317 Gain dB a0 It is possible to modify any parameters by using this window see section 1 9 To remove one or more surfaces select them on the track or the sonogram in the usual way shift key then press on the backspace key or choose Clear in the Edit menu The lasso tool also enables multiple selection Dragging and dropping one or more surfaces on the desk allows you to save all the char acteristics of these surfaces horizontal and vertical positions as well as the corresponding gains the processing will be called extrait de AudioSculpt x To use the same processing on any other sound drop extrait de AudioSculpt x on the sonogram see chapter 4 You can re name these excerpts if you want 2 3 2 Free surface tool With the free surface tool you can draw two kinds of surfaces on
63. s you to choose time correction or not time correction is checked by default The transposition is limited to about 5 octaves A rectangle of the same duration carrying the corresponding icon of the processing track element will be created Ircam documentation Chapter 2 Processing africa aiff Pp 44100 0 Samp Sec 16Bit AIFF 5 23 Seconds Mono a 4 5 sec To modify the transposition it is necessary to reopen the dialog box by double clicking on the track element You can move or readjust time wise or duplicate the rectangle therefore process on the track in the same way as surface elements You can also modify your processing by using the Inspector palette Replicate in Time and Invert functions are active The Invert function changes the transposition sign 2 4 3 Constant Formant In the Treatment menu choose Add Constant Formant The following dialog box will open and allows you to choose your parameters Formant filter Number of Formants Center Frequency Hz of first formant gt Multipication factor trom z 1st formant Arnpliude dE Bandwidth Hz of each formant Ircam documentation 25 26 Chapter 2 Processing If you ask for a positive gain AudioSculpt warns you that it is necessary to normalize the output by checking the adequate box in the calculation dialog box of see section 2 10 Formant filter Number of Formants Center Frequency Hz of first form
64. sound A if it is too long the sonogram takes the appropriate size but will not be correct Note Even if the Empty Fft directory on quit box is checked the Fit files will be kept on the condition that you choose to save them in a different directory Note The size of the Fft files is about the double of the corresponding sound file 1 Mo approxi mately for 500 KB sound file Ircam documentation Chapter 5 the Bpf editor The Bpf editor is the same editor which is used in Diphone Refer to Diphone s documen tation on Forum CDRom Diphone_Studio Francais pdf and its update It is quite obvious that only the use of simple Bbf concerns AudioSculpt Do not forget the small practical tool which allows you to readjusting of a Bpf window Ircam documentation 51 52 Chapter 5 the Bpf editor Ircam documentation Chapter 6 Menus 6 1 File menu AUS Edit Processing I New Text New Console Mew Bpf Mew Sonogram N Open de D Open Analysis Open Treatment Open As Text Open Movie 50uno Close de VW Save Treatment 5 Save Treatment As Save Sound As Revert Page Setup Print Quit New Text opens a text editor not used for the moment New Console opens a new SuperVP console New Bpf disabled New Sonogram opens a new empty sonogram useless for the moment Open opens a sound
65. t FORMAN zero lao 16 2 4 An A 17 E A a a a t ne 18 20 PIOCCS SING USING BEIS a dad citaba iio le tisane ld 18 2 5 1 Breakpoint Filter filter by Bpf 19 Zire DYNAMIC rans pOSI Orta a deu tte 20 2 5 3 Dynamic TimeStretching expansion compression 20 21924 DYNAMIC Formani esnea RE arte tait ere media tte 21 2 OUI OTEN O See end nn da on an 21 2 1 QUISO Filter SAME SS deca 23 2 8 Selection and removal of processes 24 2 9 Multiple PROCESSING lt 24 2 19 Calc uAtiOnOPrOoC es SIN nee o 25 2 10 1 Calculation on the totality of the sound Process Treatments 25 2 10 2 Calculation of one part of the sound Process Selection 25 2 10 3 AudioSculpt and SuperVP messages 26 2 10 4 temporary ISSU nt ae 26 Ircam documentation V vi 3 TRE A O 27 d l Me sequencer tracks iia ii 27 3 22 INE SCOUCNCED SONG iaa 28 4 AW ING Pt 29 4 1 TP HOGCCS SING sen ins os 29 RADIO ee 29 A dia een cie 29 D 1he Bl A RS ceccdasneueuacusneveccavsececcacvunesasasmreecenocsa eee 31 Ge MOUSE Een se nee rene E DD Lau Sun ee Dec ne isa t enter Sos disent ste ci ee 33 A A A 33 0 o o A A oe a e 33 3 Proc ssiho Mendaro can 34 64 Treatments mena a 34 0 07 WNW MENU stands 35 607 BPF Mentira ne dada mn tien iio 36 Ts SIEFEOPNOMIC SOUNO S iniiao e a 37 8 A dioSculptand MacOS Koss ia A RaR 39 9 COMMANAIIN S
66. t the help message for processing options hf prints out the description of the different filtering modules ho prints out the help message for output options Generally SuperVP has two input tracks 1f applicable on both tracks the options for track 1 are in upper case for track 2 in lower case Option flags specified in lt gt are mandatory If option flags are specified in they may be omitted resulting in a default value Ss lt filename gt specifies input file name Def stdin which is relative to SSEDIR if no full path is given filename can be either a soundfile or a data file see output options 0g3 or Og5 format generated by an earlier call to SuperVP Supported sound files comprise AIFF AIFC WAV NEXT SDII with all variations of sample size and withu law a law compression Example Sflute Specifies input data to be read from SSFDIR flute BOS lt StarLo E Specifies start position Def 0 0 in the input file The starting point may be negative which will add silence in the beginning of the sound If start contains a decimal point it is interpreted as time in seconds if not it specifies time in sample number The first sample is at position 0 Ircam documentation 67 68 Appendix A SuperVP Help o Examples B1 4 starts processing 1 4s after the first sample B44100 starts processing at sample position 44100 Cc lt channel gt specifies the channel to process Def all channels or
67. tion of Ircam documentation 73 Appendix A SuperVP Help more than 120dB are not supported t displays the current processing time in the input file T displays the current processing time in the output file trans lt cents gt or lt filename gt transposes by the given number of cents Transposition requires the A and Z flag To transpose without changing duration time correction the D switch has to be added For time varying transposition a parameter file has to be used which contains lines with time transposition Which are linearly interpolated SAS Example trans 1200 will transpose one octave up truelpc do not apply any normalization after lpc in the analysis section Intended for using lpc analysis for lpc filtering U specifies the position of the first window with respect to the first sample Def window centered at first sample U u moves the window such that its first sample matches the first sample of the sound y prints out details about the SVP patch structure and parameters Ww lt type gt specifies analysis window type the analysis window type Def hanning rectangular triangular hamming hanning blackman exactblackman AS Example Wblackman S performs a resynthesis inverse fft and overlap add Ircam documentation Appendix A SuperVP Help lt output filename gt The outputfile is specified without option switch as last parameter of the command line If no output file is specified t
68. to the maximum of a normalized spectrum 0dB formant FOL LLior filtering applies a collection of second order resonance or formant filters to the sound signal In case of fof the number of formant filters has to be the same throughout the file In case of fifof the number of formants can change and the formants describe the amplitude transfer function at the time specified Interpolation with respect to time is done using linear interpolation and extrapolation as specifie for the breakpt filter In case of the fof filter the number of formants is fixed but their parameters may change fshift this filter applies a time varying frequency shift to the signal the parameter file contains a breakpoint description of the shift to apply at a given time point in Herz The first and last parameter are extended till the start end of the sound respectively example Orca 3 03 this file would shift the sound down by 50Hz NOTE due to the internal representation you may not combine a frequency shift filter with time stretching or Cransposi Lion gabarit apply a fft analysis output file that has been stored in gabarit format as a filter to the input sound file The gabarit mode has to be 1 amplitude only 2 phase only or 3 for amplitude and phase filtering See option Ogq Since SuperVP 1 83 the filter analysis data sampling rate and fftsize are no longer required to match the respective values for the filtered sound An
69. u can modify the bands as you like It is possible to move a point by using the pointer tool this one is transformed into a red cross when it moves over one of them Click above and move it It is possible to create a pair of points by using the pointer tool this one is transformed into red cross when it moves over a line that indicates the limit of a band Click on it to move it Bands could be crossed Ircam documentation 27 28 Chapter 2 Processing africa aiff Pp 44100 0 Samp Sec 16Bit AIFF 5 23 Seconds Mono p If you reopen the dialog box while double clicking on a track element you can choose only between Band Pass and Band Reject without changing the bands themselves You get the same result with the Invert function But if you choose More Options AudioSculpt warns you that you will lose all changes previously made Edit Band Filter C Band Re ject lt Changing these values will recreate the bands eliminating an data points you have added Humber of Bands Width of Bands Hz Starting At Hz Hz Between Bands You can move or readjust time wise or duplicate the rectangle therefore process on the track in the same way as other elements You can also move the selection on the sonogram vertically with the pointer tool You can also modify your processing only temporally by using the Inspector palette Replicate in Time and Invert functions are active 2 4 5 Clipping
70. y mismatch will result ina proper resampling of the filter data using linear interpolation Ircam documentation 79 Appendix B SuperVP Help Filter module description of phase and amplitude amplitude interpolated in log domain such that the frequency response is kept Gabrit format description All the different formats share a common file header specifying gabarit mode 4 byte int sample rate 4 byte float soundfilenamelen 4 byte int soundfilenamechars namelen chars The length of the input sound file is always including the limiting zero byte of a c string and rounded up to regard a 4 byte boundary the unused part of the name is filled with zeros Following the file header are the frames each with a unified frame header consisting of frameCenterTime 4 byte float nbdata 4 byte int windowSize 4 byte int frameSize 4 byte int The samplerate is used to derive the data spacing in frequency as samplerate nbdata 1 2 Windowsize is used to adjust the phase prior to using it by adding substracting a linear phase component that compensates for the center of the window being shifted windowsize 1 2 away from the start of the frame Framesize is not used for filtering and can be left 0 After each header there are nbdata multi element values The meaning of the values depend on the mode and are mode data i single amplitude 2 single phase value 3 pair of amplitude and phase value 4 pair of fre

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