Celemony Capstan Manual
Contents
1. Removing unwanted correction Notice how the Intensity and Smoothing Curves cross You can distinguish those lines by their shape the Intensity Curve is thicker and white in the middle You also have the option to check and select the curves in the Inspector Please refer to the chapter Inspector Fixed pitch By default Capstan calculates the average pitch from your audio file and plays it back on this reference pitch The resulting file has the same length as the original file When things go really wild you ll need to tell Capstan a definitive reference tone to use Load example 4 really wild wav First thing you notice is the jump of the Speed Curve at 2 5 seconds which persists until the end Draw a range of any lenth beginning at the jump When you then shift double click on the right hand side of the range it will be extended until the end Now move the Speed Curve one semitone down by hitting the down arrow key When you now play back the processed audio you notice a drop in overall pitch Open the Inspector either from the File menu the I button on top of the 12 Capstan user manual Tutorial window or via the shortcut Ctrl I on Windows or Cmd I on the Mac and select the pitch window There are several options to choose from You see that use fixed average pitch is selected and that Capstan calculated a reference pitch around 430 Hz This is surely to low To correct this select u2. wow and flutter removal user manual Capstan user manual rev 1 This documentation refers to Capstan 1 0 Authors Mathis Nitschke Stefan Lindlahr Layout Saskia K lliker Celemony Software GmbH Valleystr 25 81371 M nchen Germany www celemony com Support capstan celemony com The manual and the software described therein are supplied under formal license They may be used and copied only under the conditions of this licensing agree ment The data contained in the manual only serves for information purposes and may be changed without prior announcement The information contained in the manual does not constitute a legal obligation of Celemony Software GmbH Celemony is not responsible for any eventual faulty or inaccurate information con tained in the manual The manual and any parts thereof must not be reproduced or transmitted without the prior and explicit permission of Celemony Software GmbH Capstan Celemony and DNA Direct Note Access are registered trademarks of Celemony Software GmbH All other trademarks are the property of their respec tive owners Apple Mac and Mac OS are trademarks of Apple Inc registered in the United States and other countries Windows is a registered trademark of Microsoft Corporation in the United States and other countries Celemony Software GmbH M nchen 2011 All rights reserved 2 Capstan user manual Content Content WECM erare cesaens 2 tive a Ea 5 Installation and ACTIVA
3. any length Playback is possible for only 7 seconds at a time though then playback will stop Furthermore the saving of a capstan file and file export is not possible 6 Capstan user manual How Capstan works How Capstan works Capstan looks inside the music It analyzes the polyphonic content and compares the individual notes If a pitch movement is found only in one voice it is taken as an intended musical expression by the performer Such pitch movements should remain untouched But if a pitch movement is identical or dominant in all notes it must be coming from the recording medium and needs to be corrected The more complex the music is in terms of polyphony the easier it is for Capstan to find all necessary corrections automatically This makes Capstan s fields of ap plication reach from classical Orchestral music to Pop or Rock recordings mainly being used on complete mixes The less polyphonic the music is the more manual help is needed Further down you will find detailed suggestions on how to deal with such rather complicated material Detection first repairing later the governing principle How does Capstan manage to find the speed deviations in your audio material The answer or the crux of it is this through its analysis of the material As soon as audio is loaded into Capstan it examines the entire file and seeks to detect the musical tones within it It then decides which pitch movements are intentional vi
4. as long as you have selected a range for editing 26 Capstan user manual Preferences Preferences The Preferences window offers several tabs each with a number of options gov erning the behavior of Capstan All settings done here will be the same for each document and for every program start When you change any of the Preferences settings these changes will remain permanent for all upcoming program starts unless of course you change them again Open the Preferences window in the Help menu Windows or the Capstan menu Mac Configuration tab The Configuration Tab in the Preferences window Auto Save after Detection When this option is checked Capstan will save a capstan file containing the result of the analysis that took place upon loading the raw audio file You can open multiple files at once to run the detection as an unattended batch process The results will be automatically saved Start Playback Here you choose which behavior you prefer when starting playback via the Space Bar after Capstan was stopped should the next playback continue from where you just stopped or should it play back from the same position as it did the last time Capstan user manual 27 Preferences Please note The behavior you did not choose here will automatically be triggered by Alt Space or whatever key you defined for this in the Shortcuts tab Selection Preroll Time When a range Is selected in the ma
5. between O and P while playback is running In this audio example Capstan obviously has little problems to find the right Speed Curve the problem is repaired instantly all you needed to do was loading waiting for the analysis to finish and playing back as Processed Now that you are happy with the result you might want to export your restoration Select Export from the File menu and export it to your desired destination Alter natively use Ctrl E on Windows or Cmd E on Mac Please note that you can select the desired output bit depth in the lower left corner of the Export dialog Capstan user manual 9 Tutorial Name s Anderungsdatum D example 1 wow wav 03 06 2011 16 12 ucht example 2 flutter wav 03 06 2011 16 30 example 3 fall wav 03 06 2011 17 00 amp example 4 really bad wav 03 06 2011 17 18 The Export Dialog Flutter The next case is the flutter problem of example 2 flutter wav You notice that again Capstan does a splendid job finding the proper Speed Curve But it still shows some disturbance That s because in this specific example Capstan simply doesn t do enough of its correction To rise the intensity of the process click on the thicker blue line in the middle of the upper waveform pane and drag it upwards Additionally a little smoothing of the Speed Curve helps Select the Smoothing Curve that s the thinner blue line below an
6. in the new shortcut you want to specify You may use any single key or a combination of it with one or more modifier keys Shift Alt Ctrl or Cmd Defining Shortcuts in Preferences gt Shortcuts Capstan user manual 29 Preferences Version tab Looking for updates in Preferences gt Version This Version A display of your current version In case you need assistance from our support team they may ask you for the information displayed here Check for Updates When your computer is connected to the internet you can check whether your Capstan version is up to date You may set an interval daily weekly etc for Capstan doing an automatic check Or you use Check Now to find out right away if a new version is ready for download If there is a new version available you will be guided onscreen through the downloading process Last Check Status Next Check Here you can see when the last update check did happen and when the next check will be performed 30 Capstan user manual
7. Info register The File Info shows the location of both your audio and capstan files as well as the technical specifications of your audio file In the Comment space you can write own annotations which will be saved with your capstan file Displaying the File Info Capstan user manual 21 Inspector The Pitch amp Duration register The Pitch amp Duration register is a very important one Here you define the tonal aim of your correction The Pitch and Duration register Use Fixed Average Pitch By default Capstan will analyze the pitch of your whole audio file and calculate the a fixed average pitch This pitch will be used as the constant reference to fix your music The result of Use Fixed Average Pitch will be a file with the exact same length as your original Use Average Curve The option Use Average Curve is for special cases aS an example imagine a choir a cappella which is always floating a little around the reference With this option you can track the slow movement of the reference and correct it to this target Set the integration time for the average measurement with the slider 22 Capstan user manual Inspector Keep Original Duration in Range The average curve option can be combined with the option Keep Original Dura tion in Range then the average curve as a whole will be multiplied with a factor to keep the duration identical As Use Average Pitch will always give an identical
8. TION cece ccc ee eee ee acess ee eeaeseseeeeaeeeeeaees 6 Installation and Ten NOMey vccssiniaeintastanidagchnachadseiehaessbintiekedaseieiteuieaconttadekniciair aad 6 TOTO Cle aei E E E E cia ae ascents sndeeneneexseanee 6 HOW Capstan works 0 0 ccc cece ec ee nee ee ease ee eee ea eseeeeaeaeseeaeaeeeeeeaeaeegs 7 Detection first repairing later the governing PriNCIPle cccecececeeeeeeeeeeeeeeeeeeees 7 How the correction WOIKS wcccxassswnucasinianhavinantenceredoddacesmmnan AA E RA AAA 8 A SELAN Esta A EE ESS E E E N A E N E AE 8 TOOTE e E E E adeaiie eaneens g WON oriana aeea T E EE A T TE E E EEA 9 EAE EO E EEAS IEE N A ENE EEI A E ANA EE AE O E 10 SPEO O iuxsaraconia imitans sdusctnehanisadtisansdutanaehotssatatedianiicldecstnasecdietiiaiatedecamtetaamnes il PEA TI ee E r E E unodtdncauiaesdes 12 Main Window is soe es cance tenininnad arcndeaamadsmadsaivarraaah gudetmasnadabasaneimaned aecnianenibaaatss 14 TPE VINCI S Seaia Gescrsnq act e E AAA 14 Editing the Speed UWE rsrsiiorirsinisididi niniin rer AR r ai ARa a i ridek ariaa eE 19 DESC reais ara alee ES noe tt anne Aaa Zl Toe FUE MO 2 E E AEE AE E E I E 21 The Pitch amp Duration regista sisson eisidein AA EA Aaa 22 M aaan a E E EA EE AEE EEA 24 NYY AEE EEE E N EEEE E E ET I E E E 20 PFETEVGNGCCS vires ssa scsecenssnnrenecanand miaxanddeansdb vexcusuneninanesausananieanesasnnplacenddaenduanededs 27 Cne O T G e E E ETE E A E EEES ca AUO 6 See eee cee T eee e
9. brato effects by the performers and which pitch movements are caused by defects of the medium be it a tape record or wax cylinder The resulting Speed Curve of your medium will be displayed blue in the lower pane When the line goes up the original material speeds up resulting in higher pitch and when it goes down your material slows down resulting in lower pitch Capstan user manual 7 How Capstan works The Speed Curve The Speed Curve This detection process takes place shortly after the file is loaded The time required for this depends upon the processing power of the computer and upon the length and musical complexity of the file If you want to stop the detection process simply close the window The need for this analysis explains why Capstan cannot operate as a real time effect like a Denoiser or Declicker only when the analysis is complete the Speed Curve can be displayed The correction though does work in real time every alter ation you make to the process in Capstan can be heard instantly with no delay How the correction works Once Capstan knows the Speed Curve of your audio material it will vary the play back speed of your audio file When your audio speeds up it will slow down the playback and vice versa It s a pure resampling process There is no pitch shifting or time stretching involved which could harm your audio quality File formats Capstan imports and exports all common mono and stereo a
10. d drag it upwards little by little Compare your editing with the example 2 flutter capstan file from the Examples folder The Intensity Curve The Smoothing Curve Identifying the Intensity and Smoothing Curves 10 Capstan user manual Tutorial Speed drop Capstan will always choose the nearest line next to the given reference tone In example 3 fall wav you can already see in the background structure how far the speed drops shortly before second 8 The background shows the analyzed dominant pitch curve with parallel lines semitones apart As the pitch falls down at a certain point the Speed Curve jumps up to the next semitone because it is closer to the reference tone the straight red line Draw a range between the jump up and the following jump down and drag the blue Speed Curve down It will snap to the next and here correct semitone After Speed Curve edit As noted before in the section How Capstan works Capstan works best when the music is complex In this example we have a static string background with a solo viola playing vibrato This vibrato is so dominant that Capstan takes it for the Speed Curve As there are hardly any defects outside this one big pitch drop one can reduce Capstans intrusion through modifying the intensity and smoothing Capstan user manual 11 Tutorial curves Compare your settings with the example 3 fall capstan file There are several possible solutions
11. duration this option will be checked automatically when Use Average Pitch is selected Use Fixed Pitch Often you will want to define a fixed pitch especially when you know exactly at which reference the performers were tuning their instruments to In such case chose Use Fixed Pitch and type in the desired reference pitch You then get a perfect correction of all pitch problems including shrinkage of the complete tape Set Duration in Range to When you need your audio to be synchronized to a picture the option to set a duration comes in handy You would then specify the Range by typing in start and end point in the corresponding Range fields at the bottom of the panel Then you choose Set Duration in Range to and define the duration of your destination by typing in the desired value Range Start and End Specify the range by typing in the desired positions The displayed timecode standard displayed is set in the View register of the Inspector Instead of typing in the values you can also transfer the actual time position of your playhead cursor by using the drop down menus of the start and end fields Capstan user manual 23 Inspector Marker The Marker register For adding comments and reminders to certain spots in your audio file you can set markers In the Marker register of the Inspector you can set a marker by clicking the button To call up a marker simply click it while playback
12. e ne ere Cee ee ee ee ere ene aa 29 VO FU Sel asap sees esarracnneaseecesicnseta T sedan ceeanies aiuaee anew io tedaeaneracseoeas 29 NST SNOW aD PEE I NN I sta TE reno aces canines saan EN eae cet eee 30 Capstan user manual 3 Welcome Welcome Many thanks for your interest in Capstan and a warm welcome to the circle of Capstan users Capstan is an all new method to correct wow and flutter problems It detects pitch problems directly from the inside of the musical signal and corrects them as straightforward as possible by speeding up and down the playback of your audio file directly reciprocal to the speed changes which generated the problems We at Celemony have worked hard to make Capstan as pleasant to use aS power ful and as useful as possible Let us know how you like it and what we could improve And don t hesitate to contact us if anything doesn t work quite the way it should at capstan celemony com we re always there for you We hope your work with Capstan will be productive and that you ll have fun with it at the same time Kindest regards all at Celemony Capstan user manual 5 Installation and activation Installation and activation Installation and terminology Capstan is very easy to install just launch the installation program either from the program CD or the download and follow the onscreen instructions The whole installation takes at most a few minutes Before using the program however y
13. ill be removed along with the deleted one To reset the complete curve double click in the scale ruler on the left side of the waveform on the default curve positions the mouse cursor will change its shape For resetting the Intensity Curve double click at value 1 for resetting the Smooth ing Curve double click at value O 16 Capstan user manual Main Window I TW Resetting the Intensity Curve by double clicking the left ruler on 1 It is also possible to reset only a part of the curve to the default values For this approach you first draw a range and then double click on the appropriate spot on the left ruler The reset will then only be done only for the selected range 8 Speed Curve This is the core of Capstan After Capstan analyzed the musical content of your audio file it will display this blue line When the line goes up it means an ac celeration of both pitch and tempo had happened in your original material When the curve goes down this indicates a deceleration To correct the speed problem of your audio source Capstan plays back the audio file with the inverse Speed Curve In other words when your original material speeds up Capstan speeds it back down and vice versa That way you get a perfect correction of your recording For editing the Speed Curve refer to the next chapter 8b Pitch reference The red line represents the pitch reference to which Capstan corrects your audio In the Inspector you find
14. in window the next playback will start at the beginning of this range You can however define a Preroll time to let the play back start a few seconds before the beginning of that range Continuous Edit Update When editing the Speed Curve your changes are reflected immediately since the blue curve gets redrawn permanently while you work on it or on the Intensity or Smoothing Curves This redrawing takes some processing power and depending on the length of your audio file and depending on the power of your computer the permanent update of the curve may feel sluggish For such cases you can define a maximum file length forcing Capstan to only do permanent redrawing on files that are shorter than this maximum When your file is longer you will notice that while dragging any of the curves the blue Speed Curve doesn t change and it is gray until you release the mouse This is however only an optical issue the audio result will always be real time Fast Playback Dim When playing back fast using the Shortcuts J and L the playback level will be dimmed by an amount that you can set here 28 Capstan user manual Preferences Audio tab Here you choose the audio driver and specify its settings Setting up the audio driver in Preferences gt Audio Shortcuts tab Here you define shortcuts Each function has a pre set shortcut To change this default click on the function and while it is highlighted type
15. is stopped The playhead posi tion will then jump to the corresponding position Name or rename a marker by double clicking its name and delete the marker by clicking the button To change the position of a marker double click on it in the Position column and type in a new value 24 Capstan user manual Inspector The View register Original and Processed Time Original Time shows the actual timecode position in your original audio Processed Time shows you the actual timecode position in your processed audio Contrast and Brightness The Contrast and Brightness sliders help you to change the visibility of the lower pitch pane background structure Timedisplay Timedisplay changes the timecode standard Active Curve Active Curve helps you to identify and select the curves in the upper waveform pane especially when those curves cross each other Show Doubted Ranges Show Doubted Ranges will display sections in your Speed Curve where Capstan spotted ambiguous pitches It can help you with identifying problems in harder cases Doubted Ranges can also be shown via the shortcut R To go from one Doubted Range to the next use the left right arrow keys Capstan user manual 25 Inspector Auto Scroll Auto Scrolling will make the waveform and Speed Curve display follow the play head cursor It can be activated and deactivated with the shortcut A Please note Auto Scrolling will be turned off temporarily
16. ol on the right hand side of the scrollbar or with the shortcuts Ctrl up down arrow Win or Cmd up down arrow Mac 12 The timeline ruler The time ruler displays the positions in your file in seconds You can use the ruler for setting up a cycle in order to play back a selected passage repeatedly in a loop Define the cycle range by clicking and dragging in the lower part of the Bar Ruler Toggle Cycle Mode on and off by double clicking on the cycle range When inac tive the cycle range is light grey Change the Cycle length by dragging the right or left hand borders of the cycle zone Move the Cycle range en bloc by dragging the middle of the cycle zone to the left or right With all the above actions you will notice that the cycle borders snap to 1 10th seconds To get a finer resolution hold the Alt key while dragging 18 Capstan user manual Main Window Editing the Speed Curve Editing the intensity or smoothing curves is actually changing the Speed Curve This process can easily be heard and seen the curve changes its shape In addi tion to using the Intensity and Smoothing Curves you sometimes want to directly modify the Speed Curve itself Therefore it is possible to move parts of the Speed Curve up or down To do so specify a range and move the curve either by dragging it with the mouse or by using the up down arrow keys The curve then will snap to the next semitone s Moving a section of the Speed Curve
17. ou must register and activate Capstan Here is a brief explanation of the termi nology Serial number Your serial number represents your license for Capstan Registration Registration involves the creation of a user account linked to your serial number You set up such an account at www celemony com mycelemony where online instructions will guide you If you purchased Capstan from our web shop the registration is already complete Activation Once registered your Capstan license must be transferred to an iLok This means Capstan can only be used when you own an iLok dongle which is sold separately in every pro audio music shop Connect the iLok dongle to your computer and proceed like this 1 Go to your myCelemony account and use the option Transferring your license to your iLok account At this stage you will be asked for your iLok account name If you don t have one yet go to www iLok com and create an account 2 In your account at iLok com navigate to new licenses available There you will find the Capstan license waiting for you Download it to your iLok dongle by following the onscreen instructions After this procedure you will be able to activate and operate Capstan on any number of different computers but only on one at a time that is to say only on the computer in which the dongle is inserted Demo mode When no iLok license is found Capstan can be used in Demo mode In this mode you can import files of
18. riginal the Speed Curve will be grayed out 3 Inspector This button opens an additional window please see chapter Inspector 4 Intensity Curve Increases or decreases the amount of correction Default value is 1 A value of O means there is no processing at all your audio sounds like the original 5 Smoothing Curve Filters out faster changes of the Speed Curve Default value is O 6 Range To draw a range click and drag in the background of either the upper waveform pane or the lower pitch pane Holding the mouse over the edge of an existing range changes the mouse cursor to a range modifier To extend the range to the end or the beginning shift double click outside the existing range In the waveform pane a range can be drawn with finest resolution In the lower pitch pane the range will always snap to places logical to the detection process Extending the range Capstan user manual 15 Main Window 7 Curve points Both Intensity and Smoothing Curves can be automated When you have drawn a range simply drag the curve in the desired direction There will be 4 curve points created automatically When you drag the curve while playing back the playback will automatically start again Editing the Intensity Curve within a range A double click on the curve will create a curve point A double click on an already existing point will delete it If the curve point is inside a range all other points in this range w
19. se fixed pitch and type in 443 Hz that s the reference a this recording was made with Nail dice teal Wiad ii WL A Use fixed pitch Capstan user manual 13 Main Window Main Window The elements The Main Window 1 Transport You can operate Capstan just like a tape machine and play forwards as well as backwards in different speeds There are several ways in Capstan to play sound e Use the mouse and click the transport buttons e Position the playhead cursor by clicking in the background of either the upper or lower pane or the timeline ruler Then press the space bar to start playback e Double click in the timeline ruler to start playback right away from the clicked spot e Use the standard Avid shortcuts J K and L on your keyboard J and L will play backwards and forwards Hitting these keys several times in a row will increase the speed to 2x 4x and 8x fast forward or reverse playback To pause press K e For slow motion playback hit N or M First time will play at 1 4 playback rate second time at rate 14 Capstan user manual Main Window 2 Original processed Use these buttons to toggle playback of your original audio or the processed au dio Alternatively use the keys O for original and P for processed Shift O and Shift P will play again from the position of the last playback start When switched to o
20. several choices how the reference is built Please refer to the chapter Inspector Capstan user manual 17 Main Window 9 Pitch pane background The background structure of the lower pitch pane illustrates the pitch develop ment It helps you to identify spots where you would need to edit the Speed Curve For example if the pitch drops really hard the Speed Curve will suddenly jump from one semitone to the next 10 Navigation scrolling and zoom For navigating in your material there are several possibilities e Call up the Hand Tool by Ctrl clicking Windows or Cmd clicking Mac in the background of any of the two panes and drag the mouse Drag to the left and right to move inside your file drag up and down to zoom in out horizontally e Move the scrollbar at the lower end of Capstans main window to the left or right to move inside your file Alternatively you can use the two buttons with the small arrows on the right hand side of the scrollbar to move left or right e Click and drag the ends of the scrollbar to zoom in and out horizontally Double clicking the scrollbar will zoom out completely e Horizontal zooming can also be done with the shortcuts Ctrl left right arrow Win or Cmd left right arrow Mac 11 Pitch pane vertical zoom In certain situations you may want to zoom in vertically e g when adjusting drastic jumps in the Speed Curve A vertical zoom is performed with the two but tons with the waveform symb
21. udio file types in bit rates between 16 and 32 bit both fixed and floating point It can work on sam pling rates up to 192 kHz Capstan stores its detection data and your edits in a capstan file which will be saved next to your audio file When opening a capstan file the program will always assume the corresponding audio file at the same location 8 Capstan user manual Tutorial Tutorial In most cases Capstan will do its job almost automatically To give you a smooth learning curve for the more complicated cases we prepared short audio files which show common pitch defects You find them in the Examples folder at this location Win C Users Public Documents Celemony Capstan Examples Mac Users Shared Documents Celemony Capstan Examples Additionally to the wav files we included our capstan files so you can compare your edits with our preparations Wow Please load example 1 wow wav by loading it through the Open dialog from the File menu After the analysis took place you see the slow speed changes displayed in the lower pane To hear the original file first press O and hit the Space Bar Now compare it to the processed version hit the Space Bar to stop press P and hit the Space Bar for playing back again Now you listen to the corrected version as it came out after the analysis without any other editing actions taken by you To toggle between original and processed version you can also switch
22. up or down Capstan user manual 19 Main Window For super special cases one can also directly draw the Speed Curve with a Pencil Tool Hovering the cursor over the Speed Curve changes its appearance into such a pencil Now click hold and drag the mouse to draw a new curve Editing the Speed Curve with the Pencil Tool Please note that your intensity and smoothing values will be applied to your draw ing Only in default intensity and default smoothing settings will the drawing be applied like you created it You will notice a thin white line beneath the Speed Curve though This is the originally detected Speed Curve without any intensity or smoothing changes Resetting the Speed Curve to the original detection is possible by using the com mand Reset Speed Curve to Detection in the Edit menu This resets the whole curve If you draw a range the command reads Reset Speed Curve to Detection in Selection and resets only the part you selected Please note This command does not reset the edits done with the Intensity and Smoothing Curve Those edits can be reset individually as described earlier 20 Capstan user manual Inspector Inspector The Inspector is a floating window with four registers providing you with detailed information and specific settings for your current file Even if you have opened multiple files you will only see one Inspector which changes its content depend ing on the active window The File
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