common problem I run into is wanting to put in a new section between two or make section A or B longer or shorter.
Inserting measures should be no problem; just cut everything including tempo changes, from the insert point on, and paste it later by however many measures you want to insert.
Changing the length of a section full of tempo changes by scaling them all is tricky. There's no easy way, but it can be done. Below is a procedure I've posted before. It was intended to shift the tempos of a whole project, but I think it can be adapted to work on just part of one by selecting just that section, and calculating the number of frames in the selection, rather than total frames from the beginning. But I haven't tried it that way. It'll make more sense when you look at the Fit To Time dialog. It would be easier if you could specify absolute times in milliseconds or samples, but SMPTE is the only option, so you have to use frames.
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 Okay.
EDIT: I was thinking there was no option to shift tempos with Insert > Time/measures, but I guess there is, so that's even easier than Cut-Paste.
post edited by brundlefly - 2010/05/21 12:45:12