Can I change the whole tempo map?

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jamescollins
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2010/05/12 00:03:34 (permalink)

Can I change the whole tempo map?

I have an intricate tempo map drawn. I now want to slow the whole thing down, whilst maintaining the tempo curves that I had drawn in, similar to just dragging a whole gain envelope down. Is this possible?

I'll have three fingers of Glenlivet, with a little bit of pepper... and some cheese.
 
allthekingsmen.band
jamescollinsmusic.com
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    brundlefly
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    Re:Can I change the whole tempo map? 2010/05/12 00:55:32 (permalink)
    Is this possible?



    It's not a built-in function, but here's a procedure I came up with to do it:
       

    1. Enable autostretch (a.k.a. Clip Follows Project) on all audio clips.  
    2. Select a MIDI or audio clip that runs the length of the project.  
    3. Go to Process > Fit to Time.  
    4. Convert the current Thru time to total frames.  
    5. Divide that by the desired factor (e.g. 1.10 to get a 10% increase, 0.90 for a 10% decease).  
    6. Round and convert that new value to minutes:seconds:frames.  
    7. Enter that as the new Thru, and select Modify by Changing: Tempo Map.  
    8. Click OK.  

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    jamescollins
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    Re:Can I change the whole tempo map? 2010/05/12 03:05:25 (permalink)
    Champion, thank you! By the way, how do I convert SMPTE to total frames?

    I'll have three fingers of Glenlivet, with a little bit of pepper... and some cheese.
     
    allthekingsmen.band
    jamescollinsmusic.com
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    brundlefly
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    Re:Can I change the whole tempo map? 2010/05/12 12:59:03 (permalink)
    Depends on your timecode format (Options > Project > Clock tab). Probably 30 frames/sec, non-drop, in which case:

    Total Frames  = (minutes * 60 + seconds) * 30

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