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How best to Quantize Audio?


Dox

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I can not find any reference to this workflow in David Nahmani's Logic Pro X 10.5 Professional Music Production book.

 

Is the method shown in these YouTube videos (links below) the correct way to quantize an audio track?

 

That is:

Record the track

Select the Region on the Track

Turn on Show Flex in the control bar

Turn on Flex in the Track Header

Then select the Quantize value in the Region Inspector

 

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Thanks David and Fuzz.

When would I need Smart Tempo then?

For other things such as, for example, detect the tempo curve of an existing recording, or the tempo curve of something you record yourself. That, on the other hand, is something that is covered in my 10.5 book: page 231 "Recording without a metronome", or page 394 "Setting a Project Tempo by Detecting the Tempo of a Recording".

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Thanks again David. I will read these sections again.

One more thing: Having used the method I described in the OP, should I then just leave Flex on, or is there a further stage in which I can make the Flexed Track and Region permanent in the file?

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One more thing: Having used the method I described in the OP, should I then just leave Flex on, or is there a further stage in which I can make the Flexed Track and Region permanent in the file?

It's up to you, and depends on your preferred workflow: you can leave Flex on or you can bounce the region in place if you want to commit the Flex editing to a new audio file and turn Flex off.

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Also, you might want to use "quantization" sparingly. You can always "feel" that a recording was "live" precisely because there is a detectable "groove" (for lack of another better word) to the tempo. Sometimes it's only a matter of a few BPM. But the parts of the song, when they "come around again," are not exactly identical, and not locked to the count in a way that quickly becomes mechanical. To my ears, it's actually refreshing to hear a piece that did not do that (too much).
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Interesting thread - this may be a different question but... is there another way to quantize audio like you would Midi - ie let's say a you have a band recording with stems where they are all playing to their own time ( in pretty good time) - can you quantise the stems ( drums bass guitar vocals etc) to all play exactly to the nearest division - say 16ths... or 12/8 like you would in the Piano Roll with a piece of midi?
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MikeRobinson, I agree with what you say. But I have found that in order to get the software instruments etc. that all play to the grid to cooperate with my free time playing the qauntization method in my OP is the easiest way. I can then rehumanise some notes/chords/beats after that.
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