I just figured something out that would have saved me a lot of trouble if it had been mentioned in the Live manual: Live's song tempo automation is not continuous (in version 7 and below). Although you can draw a ramp in the song tempo automation lane, Live will only sample its value, and adjust the song tempo accordingly, at the beginning of each 16th grid line.
In the following diagram we can see that the tempo automation changes at A and B have no effect on the song tempo (we can tell because the waveform display of the repeating audio clip stays the same). The only tempo change that is picked up is C, because Live is only sampling the automation value at the beginning of every 16th.
This is pretty disappointing, and has consequences for anyone wanting to implement the 'fake groove quantize' approach that I talked about in a previous post.
16 February 2008
Song tempo automation in Ableton Live is not continuous
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5 comments:
Hi, I'm having trouble actually finding the tempo automation in Live 7. I'm using a non-midi waveform and was instructed by the user's manual to open envelope box below "mixer" and tempo would be an option. It isn't, all I get is "speaker on" and "panning" amongst others, but nowhere can I find a way to adjust my tempo with the marker. Any light you can shine on this would be hugely appreciated!
@ Soricinae. I hope this screenshot helps you find it: http://img519.imageshack.us/img519/1487/picture109vj2.png
"Song Tempo" is the one you need.
Got it, thank you, thank you!!!
Hi, one more question then I'll leave you alone: is there any way to get rid of the "warbling" sound that occurs when one alters the tempo of a wave file?
Thanks again!
Turn warping off for the affected audio clips.
If that's not an option, experiment with alternative warp modes (try texture or complex).
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