• SONAR
  • Rallentando Tempo Map...? (p.2)
2013/03/18 18:12:15
jrobbins2112
Woohoo!  Thanks B!

Can't wait to get back to my machine and line this all up.....my Input Series of Tempos and line drawing didn't work out.....but as always I learned something along the way....

I hope I can reverse engineer what you did for future use......I really got stumped on this one...

THANK YOU!

Jon
2013/03/18 18:48:14
brundlefly
The short version is:

- Import the clip, and verify the first beat is at 01:01:000.
- Set tempo to 85, and listen for a few bars with metronome on to verify sync.
- Go out to bar 45, and listen for where it goes out of sync (after 45:03:000)
- Set the Now time at 45:03:000, hit Shift-M, and set the meaure/beat so changes after the point won't average all the way back to the beginning.
- Listen to and the rallentando section, ignoring the out-of-sync clicks in the track, and pick out a few other piano notes with obvious transients in the waveform (I didn't bother to enable Audiosnap, just picked them out by ear and eye) and use Shift-M to set those points (with the Now time on the transient) to the correct measure/beat (note that partial beats are decimal fractions, not ticks).
- Since hte musical hit at 47:01:000 comes in early, you have to set the last preceding musical note at 46:04:000 so that when you set 47:01:000, it doesn't average tempo back to 46:03:480 (beat 3.5) and mess up the end of the rallentando.
- Set the tempo to 100 at 47:01:000, a verify the rest of the piece follows it as advertised.


2013/03/19 09:08:51
jrobbins2112
Thanks Brundlefly!  I just had the chance to put in all your data and it worked PERFECTLY!

And thanks for the info on how you accomplished this.... I'm going to start from scratch and see if I can't come up with the same thing you did.  I was unfamiliar with the SHIFT-M function.

That will get this song off my plate at last! hehehe..... It was a really easy drum song, as you could hear...... it was just that weird click track the girl playing piano came up with which was driving me crazy!  hgehehehe
2013/03/19 10:27:48
fitzj
Wonderful work Brundlefly very envious how you do this.
2013/03/19 12:56:28
brundlefly
Thanks, fitzj. This is my preferred M.O. for aligning the timeline to recordings that basically have a steady tempo with some short passages of changing tempo like this.

It's not difficult once you've been through it a few times. I get a lot of practice because I like to record solo piano as MIDI without a click, and then just tighten it up a little without quantizing all the life out of it. But it's easier with MIDI because you don't have to work so hard to identify the right beats to set.


It can get more complicated when the recording starts with a pick-up note, and has a lot of rubato. And at some point, if you're intent is to really lock down a live performance to a constant tempo with quantizing, it might make more sense to spend the time massaging the clip transients and tempo map, and letting Audiosnap do its thing. But I generally find Set Measure/Beat to be a lot more predictable and manageable if you want to preserve some or all of the existing timing.
2013/03/19 13:05:28
chuckebaby
chuckebaby


you need the project,  id ask him for a copy of the project, its tiny in size.
unless im mistaken wav files don't carry tempo information in them unless they're acid files, are these acid files ?
you can always go to the marks where the tempo changes and draw in your own tempos, its easy.
place the transport line where the timeline is set on, choose/ project/tempo change/insert new tempo then you can put in a new tempo from the drop out box, fill in the info, you don't even need to go in to a mapping screen.
 
you can also change from 4/4 to 7/8 in this same box. 

glad you got it sorted 
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