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Re: [Logic_Cafe] Tempo Changes when Source Recording is at a Different Tempo

2006-08-11 by GAmoore@aol.com

> When I started using L7, I accidently defaulted my
> Autoload to 135 bpm. Most of the time, however, I
> recorded MIDI data on tracks at say, 110 bpm or 96
> bpm.
> 

So you left the tempo at 135, but recorded free form without any metronome or 
quarternote click? Did you use any machine tempo at all, for example a drum 
machine or synth arp set to 110 or 96, or is it totally freeform? I think there 
are two options - neither of which work extremely reliably.

1a. If your tempo is solid at 110 or 96, but you recorded at 135, you can do 
this : change tempo to 110. Locate a sequence that sounds four bars in the 
original tempo, but which is now too fast, and shorter than 4 bars (maybe 3.5 
bars roughly). next, to a smpte lock on all the sequences - which will lock their 
start points. select all of them. next take that four bar sequence, and 
option drag the edge so its 4 bars again. What this does is to time stretch the 
sequences which are all too fast, back to their original spacing. In practice 
this is not an exact process however. It would be if they could allow you to do 
it digitally and you could compute 135/110 %. Then unlock the smptes. This is 
necessary so that the start points don't change.

1b. Change tempo to 110, put a kick drum on every quarternote with the 110 
tempo, then try stretching everything as above by ear until it lines up.

2. Before changing tempo, lay down a midi quarter note beat. Then use the 
tempo remapping feature. It sounds great in principle but I never got it to work 
with acceptable results.

3. Just leave the tempo at 135 so your midi is exactly as you played it, and 
ignore the notational items. In a sense treat it like a Protools / tape 
recording deal.

4. What I have actuallly done in this case, is 1a to start, then meticuously 
correct the notes in the matrix editor and/or replay certain parts at the 
correct tempo, to get a bonafide good midi part which will also translate well 
into notation when it comes time to print leadsheets (for copyright if nothing 
else).


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