Sound Shifter User Manual
Contents
1. Motion Picture and Television Engineers This experts group defined and registered the most commonly used picture related time units All of these time units consist of a time in Hours Minutes Seconds Frames where the picture s frame rate takes the place of the sub second measure instead of milliseconds SMPTE FORMAT SMPTE Format Pe 23 5780 There are different common frame rate standards Each has a SMPTE format as well as a drop frame scheme for dealing with the difference between frame counting and actual running time The SMPTE format selector is in the middle setup section FEET AND FRAMES 00155412 20 00155412 80 Feet Frames 16fpf is often used in film related work Film reels are commonly measured in feet a number of frames Setting the Pitch Ratio The Pitch section has value units available to define the pitch change ratio Waves SoundShifter software guide page 8 of 13 TRANSPOSE Semitones or Intervals and Cents Transpose Semitones 3 Cents Interyal a ord m The Transpose view is a musical interval control that simply defines the interval to shift the output up or down This interval can be defined in Semitone and Cents where semitones have a numeric value from 12 to 12 or as a musical interval Minor 2 Major 2 Minor 3 Major 3 4 etc For the fine tuning you may adjust the cents value where every 100 cents equal a semitone Thus you can adjust the cents from 0 to 99 FR2. and preserves better articulation This optimization is good for voice and wind instruments or mixed classical music TRANSIENT goes another step into preserving better attacks for transients but this requires a slight compromise on the timing of the transients attack Good mode for Piano Guitar or other plucky instruments PUNCHY is the Super punch preserving optimization It is specially made for Percussive sounds and beat music LINK MODE Unlinked Time Pitch Strapped Default Unlinked In unlinked mode the Time and Pitch controls are independent When selecting one of the other link modes each section relies on the other Pitch Link Mode shifts the both the Pitch and the Time by the Pitch ratio all Time editing possibilities are void in this mode In Time mode the Pitch and the Time shift are adjusted by the Time Ratio all Pitch controls are disabled in this mode In Strap mode you can engage or break the link between the Pitch and the Time at any moment preserving their current offset or performing high quality resample when link from the start Waves SoundShifter software guide page 4 of 13 The link modes have a graphic representation to help you know that you are set for linked operation as follows gt Link to Pitch Note that in the Time or Pitch Link modes the interface will show an arrow pointing to the section that is now dominating the process The controls of the other section are disabled and theref
3. equals 0 or from the specified start time In certain host applications this display will update automatically and in others it is manually editable so the user can insert any start time value desired TOTAL TIME Input Output TESEH i ine 0005103 704 00051 os Fo4 Total time shows the overall selection s input and designated output time in the units selected in the View control When the SoundShifter can t retrieve selection length data from the host application it will default to 1 00 Minute Important note It is necessary to make sure that the Total input time corresponds to the actual input time because the Graph will apply the changes according to the timing specified in the graph For example if you have a two minute selection and the Total input time is set to one minute the graph changes will be applied to the first minute only Waves SoundShifter software guide page 12 of 13 ZOOM CONTROL coom Reset Zoom The Graphic SoundShifter defaults to full selection time view and allows you to zoom in up to 1000 times in both the Horizontal Time Scale X and the Vertical Ratio Cents Scale Y Also using the keyboard alt key and click dragging the graph s scroll bars will adjust the zoom for the related axis Alt click dragging in the graph will zoom in to the selected rectangle The horizontal zoom will stretch and squeeze the waveform view so that the display maintains coherency between the in
4. faster or slightly slower as required Waves SoundShifter software guide page 6 of 13 BARS amp BEATS Bars 0005 1 03 704 f 0005 1 03 704 Measuring Bars Beats Ticks Filling in the correct Source Tempo is also a condition for accurately working with Bars amp Beats as your time units The reason for this is that Bars amp Beats are relative to a certain tempo and they specify that a certain selection s length is two bars and another two beats at a tempo of X whereas if the tempo were 2 X the same selection would measure 5 bars 4bars and 4beats The sub beat value is called ticks and 960 ticks equal one beat METER Another factor for correct Bars amp Beats calculation is the Musical Meter or time signature which defaults to 4 4 You can specify the actual meter in the middle setup section of the SoundShifter This can help in situations where you have a live recording that you need to match to a certain bar count at a set tempo This is handy when remixing vintage recordings that have a human tempo and you are remixing in an electronic environment and style For example make an eight bar selection at 100bpm with a signature of 4 4 In this case fill in the 100bpm tempo in the Source Tempo and the source Bars amp Beats will show the length of the current Source time at 100bpm Now enter 8 bars in the destination Bars amp Beats control and you have your time conversion ratio ready to adjust your select
5. will be displayed below the graph Multiple points may be selected but only the first point will get the Selected and Active Yellow frame The others will get a selected Cyan frame Points can be moved around the graph by click dragging with the mouse or by Waves SoundShifter software guide page 10 of 13 manually adjusting the Source Time control Multiple points can also be dragged together Points cannot be moved to after or before the time of an existing point and will get stuck when they reach one Also when manually editing the point s time property only the times between the two closest points will be a legal value The others will be out of range and clicking enter will not accept the illegal number clicking esc will return to the previous number Graphic SoundShifter controls EDIT CONTROL This control allows you to select the graph of the curve you want to actively edit Only one of the two graphs can be edited at a time and the selected graph edit enabler will light up in the color of the related curve Next to each element there s a bypass button to audition either curve VIEW CONTROL ley The time display supports the same formats as the Parametric SoundShifter but you need to choose the one you want to view at a certain time When you choose a unit that needs further specifications for accurate display such as SMPTE or Bars amp Beats the related property selection controls will show up when that view is en
6. EQUENCY in Hz Source Destination Freq 440 45 setting the Pitch ratio using Source Destination values is provided in Frequency units The SoundShifter does not detect the pitch of the selected signal so the Source frequency always defaults to 440 Hz As in the time views If you edit the Source field the Destination will be updated by the indicated ratio lf you want to change the pitch by a ratio that represents the shift between 44100 and 48000 you should adjust the Source first to 44100 and then enter 48000 as the destination The SoundShifter Pitch Transpose Semitones 4 Interval 2rd F Source Destination Freg 440 3 The SoundShifter Pitch is a replica of the Pitch section of the Parametric soundsShifter Since the Pitch shifting application maintains the duration this process is adequate for real time processing as a channel insert It introduces a fixed amount of pure delay or inherent latency Waves SoundShifter software guide page 9 of 13 THE GRAPHIC SOUNDSHIFTER Wier E shalt Link mode Unlinked FI Reset foam 1 O Start Source Time Destination Cents Input Output Pooozsces FN omosese 00029398 3 Pa f oonoss4s o 00 08 276 Ly be i Tia gas a e ae ee E e e EE we eres pi rp BP Reset Graph Graphic Soundshifter The Graphic SoundShifter takes the very same elements and allows you to program a value change graph across the selection This
7. Waves SoundShifter Software Audio Processor User s Guide SL ry r Pae see i o A gr ey m m zangi g ne e lee el Li i Waves SoundShifter software guide page 1 of 13 Chapter 1 Introduction and Overview The Waves SoundShifter is a high quality Time Scaling compression expansion and Pitch Shifting audio processor Different from the well known vari speed and re sampling techniques SoundShifter is special in that it can perform high quality Time Compression Expansion without necessarily changing the pitch at all or change the pitch of any audio signal without changing its duration You can say that the Sound Shifter separates the speed and the pitch so that each can be manipulated individually There are two main controls Time Ratio specifies the speed of the output and the Pitch Ratio control specifies the change to the output pitch The SoundShifter offers a user interface that makes it easier to specify the desired Source Destination ratio by offering multiple value formats that cover all of the time related formats and pitch related units that are common in audio editing and processing applications When the Time and Pitch ratios are the same the SoundShifter will perform as a high quality vari speed re sampling tool SoundShifter can shift stretch and compress up to twice as fast slow high or low That s a maximum ratio of 2 or 0 5 in any direction you choose Special attention was given to the accurac
8. gaged For example viewing the timeline in Bars amp Beats requires knowing the Tempo and Meter musical time signature so the View selector will show selection controls for these as follows lew lt Tempo Meter For SMPTE view the SoundShifter will show the Format selector view Format Waves SoundShifter software guide page 11 of 13 LINK MODE Similar to the Link modes in the Parametric SoundShifter the Graphic SoundShifter offers Link to time and Link to pitch Selecting one of these will drive the process of both the time and the pitch by the selected graph and the graph of the other element will be ignored MODE This is the same as in the Parametric SoundShifter POINT INFO Source Time Destination Cents Ea Pooos7oiss oooz7oiss o This control shows and allows manual editing of the selected yellow point s graph coordinates The source time shows its time in relation to the input the destination shows the time it will assume after processing of the current graph The third element is the Ratio for time curves and the Transposition in cents for the pitch curve START TIME 9 Start 0000101000 The start time display is designed to show the selection s start time as in the host application so that you can see the rulers showing the time as it is in your arrangement The little round button selects whether to show the time from the selection s beginning so that the selection s start
9. ginal music for an advertising spot that s exactly 1 00 Minute long simply select the music in your audio editor and launch the SoundShifter to process the selection Check that the source time is as indicated in the host application s selection length view and if not fill in the source time manually Now in the Destination time fill in 1 00 minute 0 01 00 000 and the Time Ratio will adjust accordingly Now you can process the selection and as result you will have a processed version that is exactly 1 00 Minute long perfectly matching the spot time There s no need to edit or truncate and the difference in audio quality may be hard to notice TEMPO Tempo 2000 t2000 Two special units are the Tempo and Bars amp Beats units These require some special explanation The Tempo units represent actual speed rather than selection time and the SsoundShifter requires the correct source Tempo to be manually filled in by the user The default Tempo is 120bpm Working in tempo makes sense for example if you feel that a section that was recorded at 8bpm is a little too slow and will move amp groove better at approximately 81bpm If you know this data all you need to do is fill 78bpm in the Source Tempo and 81bpm in the Destination Tempo The ratio will adjust to the proper value Now you can audition the results in preview and process if satisfactory If it s not quite right you can fine adjust the ratio to slightly
10. ich is equivalent to one octave up or down For your convenience this ratio can be specified in any time or speed unit that is commonly used in audio editors The Parametric SoundShifter represents the ratio in Source and Destination columns where Source represents the selection length and Destination represents the length of the processed output The pitch section allows specifying the ratio by musical interval in semitones and cents or frequency difference in Hz In the middle of the Parametric SoundShifter user interface there s a setup section for setting some global SoundShifter options as follows SMPTE Format the SMPTE format see SMPTE Waves SoundShifter software guide page 3 of 13 METER The musical signature meter defines the number of beats within a bar and the musical length of each beat It is important for calculating an accurate Bars amp Beats time view MOobDE Sync Smooth Transient and Punchy Default Transient This selects one of four algorithm optimization settings SYNC is the most timing sensitive optimization and is a good choice when processing multiple tracks that are phase related such as a drumset micing array In small ratios this mode does a great job In higher ratios however this mode will allow similar stretching to transient and continuous components This makes the sound more smeared and less articulate SMOOTH continues to use some more of the SoundShifter s sophistication
11. ion to your need Important note on the Tempo and Bars amp beats relationship When you are working out your ratio in Tempo the SoundShifter will still show the same ratio represented in Bars amp Beats and vice versa It is therefore important to remember that each Destination value is related to the other s Source value so that the destination Tempo is preserving the Source Bars amp Beats count and the Destination Bars amp Beats are correct in accordance with the Source Tempo Indeed if you were to process and select the processed segment as your selection and fill the Tempo with the value that was your Destination tempo you would get the Same Bars amp Beats count that was in the Source for the previous selection at its former Tempo Waves SoundShifter software guide page 7 of 13 SAMPLES Sampi 4560520 4580520 This unit is the very finest resolution and actually counts how many samples are in the duration These are the units that the computer uses to calculate any of the other views The Samples view can reach ratios that will not be available in other units as their lower resolution will force the number to be rounded to the nearest frame millisecond tick etc When your selection changes from the samples view to another format the samples number may change as the unit you are targeting will become the real value rather than the rounded value SMPTE opre JO 01 43 22 869 0 01 4 22 89 SMPTE stands for the Society of
12. is achieved by creating Points in the graph that you can drag around to designated timing in the selection at the X axis and to its shift ratio at the Y axis There are two separate graphs one for Pitch and one for Time You can select which one you are editing Editing the Time and Pitch Graphs The Graphic SoundShifters graph corresponds to the time of selected audio At the bottom there are two time rulers The input time ruler shows the time of the selection Under the Input time ruler is the Output time ruler which shows the time scale changes In conjunction with the graph The I O Rulers show the time in the format that s selected in the View control The Graphic SoundShifter can display a waveform of the selected audio within the graph window In certain host applications the waveform display will draw itself while previewing audio and in others a Load Waveform button will be shown and when clicked will load the waveform display of the selected audio In the Edit control you select the curve that you want to edit and then you can move into the graph Double clicking anywhere in the graph will create a new Point The graph will bend to the new point between the two closest points or the start and end points which are always there by default More and more points can be added up to 999 When a point s crosshair marker is clicked it will show a yellow frame to indicate that it is selected and active and the point properties
13. ore appear faded and the Ratio disappears The disabled section will store whatever settings are there and these settings will get back into action when the link mode is changed Setting the Time Ratio In many host applications the selection length is automatically updated to the Source column by communication with the host application In the event that such communication is not supported the user can manually fill in the selection length as it appears in its audio editor in any of the supported formats The durations translate to all format views making the SoundShifter a good format conversion calculator For example if you like to know how many samples make 1 Min and 8 Sec of music just type the value you know and SoundShifter will calculate the others for you When a Source field is edited the SoundShifter will update the Destination field by the currently indicated ratio When a Destination field is edited the SoundShitter will adjust the Ratio according to the relation to the Source value Using the Source and Destination columns is a convenient way to specify the shift ratio if you know your destination duration Waves SoundShifter software guide page 5 of 13 The following section explains a little about each supported time unit and its properties TIME Time 0 01 42 366 0 01 42 66 The Time units are the top row and are straightforward Hours Minutes Seconds Milliseconds For example if you have 1 Min and 8 Sec of ori
14. put audio events and the time rulers This way you can see the points in correct relation to the input waveform The vertical zoom will not affect the waveform display but only the graph curve s zoom because the waveform s vertical scale is an energy scale and we are adjusting Time ratio and Pitch transpose Under the zoom controls there s a Reset Zoom button Click this button to get back to full selection view RESET GRAPH Reset Graph This button at the very bottom of the SoundShifter user interface will set your Pitch and Time graphs back to square one deleting all points and resetting the zoom This operation is undoable via the plug in s top toolbar undo button Also every curve and all settings in the Graphic SoundShifter can be saved via the WaveSystem toolbar s save function Waves SoundShifter software guide page 13 of 13
15. raphic SoundShifter are Offline processors because they avoid the real time processor s artifacts of gaps in the audio or long delays Waves SoundShifter software guide page 2 of 13 The SoundShifter pitch component is designed for real time processing It has a fixed latency The real time intelligent algorithm is very demanding on CPU consumption so you are limited in how many you can use on your mix For the offline processors this is not a problem but when performing such processing on 96kKHz material the real time preview operation is also limited To properly hear or preview the results it is best to apply the process to short segments and if satisfactory run it over the whole selection Chapter 2 Using the SoundShifter THE PARAMETRIC SOUNDSHIFTER Source Destination SMPTE Format Transpose Time 0 01 43 566 ry 43 566 pr 29 97ND eS Tempo 120 00 720 00 Meter 3 pars OOOSTIosvo4 oooStiosiro4 mteaa ord m Samp f 4580520 4580520 _ Mode SMPTE f 0 01 43 22 89 f 0 01 43 22 89 Sates Destination Link Kdode Freq Feet Fr OO1SS 12 80 O0155 12 80 Py Unlinked req 440 s45 Parametric Sound Shifter The Parametric SoundShifter is divided into two main sections plus a global setup section It allows adjusting two main properties 1 The Time Ratio which sets the speed up to twice as fast or down to half as fast 2 The Pitch Ratio which sets the Frequency ratio up to twice as high or low wh
16. y of the process timing which is critical in many applications We allowed as much resolution as the floating point process allows us There are very few processors that can do this and offer similar quality to that of the SoundShifter Through careful research we constructed an intelligent algorithm that focuses on the areas where the human ear is most sensitive SoundShifter maintains high integrity by preserving the groove and timing as well as attacks and transients This type of processing is not a purist process but in modest ratios we claim relative transparency So if you need to shift just a bit the results are very clean even on mixed music of any genre The higher the ratio the less natural the sound will be especially on the human voice and more complex and full signals The formants will shift with the pitch and the length of all the elements will change considerably Still for scaling the sustain of an instrument s notes adjusting a song to an advertising spot time and many other creative applications the SoundShifter is the right tool for the job The SoundShifter consists of 3 main components e Parametric SoundShifter Designed to shift the speed and pitch of a selection with a fixed ratio e SoundShifter Pitch Parametric Pitch only made for real time pitch processing of any given signal e Graphic SoundShifter Allows changing the ratio through the selection by drawing an automation graph The Parametric and G
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