[LAU] how to match tempos

Paul Davis paul at linuxaudiosystems.com
Sat Feb 9 21:05:32 CET 2019

On Sat, Feb 9, 2019 at 10:50 AM <wferi at niif.hu> wrote:

> Paul Davis <paul at linuxaudiosystems.com> writes:
> > On Thu, Feb 7, 2019 at 1:34 PM <wferi at niif.hu> wrote:
> >
> >> Suppose I've got recordings of two live performances of some piece.  I'd
> >> like to mix them but their tempo is slightly different and each one also
> >> varies naturally.  What is a good workflow for time-stretching one of
> >> the recordings to match the tempo of the other?
> >
> > Sonic Visualiser
> > It was more or less made for this.
> Thanks for pointing me to Sonic Visualiser, Paul, it looks really
> interesting.  I could get an A-B time map out of it, but not a mix or
> any time-stretched audio: it does not seem to actually perform the
> effect.  How do I proceed from here?  Do I find a time stretch plugin
> which I can automate with the derivative of this time map, or..?

Record its output via JACK?
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