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  • Change tempo of audio clip without changing pitch...
2015/05/06 16:24:28
QuadCore
Hi guys.  So is there a way to change playback speed of a clip like way there is a way to change the pitch of a clip? 
I know how to convert audio to groove clips in a project and use tempo map, but that's not what i want to do here - just want to hear a stereo demo speeded up a bit.  What's the best way to do this?  Is there another way besides 'groove clip' it TIA.  
2015/05/06 16:37:23
slartabartfast
Process > length or Process > fit to time.
 
That will make a new track that plays at the speed you determine. Back up the original track before you do a process. There is no way to just make the whole project play faster or slower at will. Speeding up tempo only affects MIDI.
2015/05/06 16:55:22
Zargg
Ctrl (left) click and drag. If it does not work. Right click on the clip, and select bounce to clip(s), and try again.
2015/05/06 17:34:03
brundlefly
slartabartfast
There is no way to just make the whole project play faster or slower at will. Speeding up tempo only affects MIDI.



If Groove Clip Looping or Audiosnap Autostretch is enabled (same algorithm), audio will follow tempo changes too. I'm not sure why the OP doesn't want to do it that way - maybe he just wants to fit a clip into an existing project, in which case Fit to Time or Slip-stretching as Ken mentioned will do that - but I just wanted to correct the above for posterity.
2015/05/07 17:31:31
QuadCore
brundlefly
slartabartfast
There is no way to just make the whole project play faster or slower at will. Speeding up tempo only affects MIDI.



If Groove Clip Looping or Audiosnap Autostretch is enabled (same algorithm), audio will follow tempo changes too. I'm not sure why the OP doesn't want to do it that way - maybe he just wants to fit a clip into an existing project, in which case Fit to Time or Slip-stretching as Ken mentioned will do that - but I just wanted to correct the above for posterity.




Thanks, brundlefly. Does groove clip work on long clips that are many bars long?  Or do long clips have to be chopped up into bars?
 
 
2015/05/07 17:41:04
brundlefly
Groove clip looping does have a limit in the neighborhood of 256 beats IIRC. Plus you have to make sure the Beats in Clip value is correct and the clip ends right on a beat to prevent immediate stretching when you enable it. For long clips, it's much easier to enable Audiosnap and click the Clip Follows Project button in the AS Palette. It will default to Autostretch mode (see the dropdown to the right of the button), which is what you want. You can also enable this function via the Audiosnap section of the Clips tab in the Track Inspector. Autostretch doesn't alter the clip in any way until you change the tempo.
 
2015/05/07 17:43:42
Beepster
I've turned entire tracks (clips that extend for the whole project) into GrooveClips to try out different tempos while composing. Works fine (but will cause artifacts in the audio until you bounce the time stretching).
 
You will want to be sure to trim the start and end of any clips you do this to so they start and end exactly at snap points (like measure lines). This will keep the clip/timing in place within the project.
 
If you want to keep the change (I usually just do this when writing then retrack at the new tempo) and there are still artifacts after bouncing the clip try a) another offline render algorithm and/or b) opening the clip in the Loop Constructor view and adding more finite (or custom) splits to get better fidelity.
 
Cheers.
2015/05/07 17:45:50
Beepster
brundlefly
Groove clip looping does have a limit in the neighborhood of 256 beats IIRC.




Hmm... I did not have any problems but maybe because I was working with a raw clip it just compensated... or perhaps my song wasn't long enough to hit the limit (but I'm pretty sure even though it is a quickie it ain't that short).
 
Weird.
2015/05/07 17:48:30
Beepster
Even still just putting a split or two on the clip(s) and converting all the GC would workaround that.
 
Or you could just do the Time Stretch slip edit (hold Alt while hovering over the clip edge so it turns yellow then drag it like a normal slip edit... pretty sure it obeys Snap so just line it up accordingly... again you'll wnat to pre crop the clips for accuracy).
 
2015/05/07 18:17:06
QuadCore
Thanks, guys. 
 
So some of my clips have three bars, some four.  Do the clips have to have en even number of bars? 
Another question - can i groove clip more than one clip at a time, by selecting multiple clips before 'groove clipping'?
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