Subject: Re: [linux-audio-dev] query
From: Steve Harris (S.W.Harris_AT_ecs.soton.ac.uk)
Date: Wed Feb 13 2002 - 19:47:22 EET
On Wed, Feb 13, 2002 at 11:39:09 -0500, Taybin Rutkin wrote:
> On 13 Feb 2002, Alexander Ehlert wrote:
>
> > The basic idea for a simple time stretch is to subdivide your signal
> > into overlapping windows. Next you would apply a so called windowing
> > function to that window (Kaiser, Hamming, Hanning, a triangle).
> > Afterwards you sum up those windows with an overlap that is a little bit
> > bigger than the overlap you used before. So far the basic idea. Happy
> > implementing :-)
>
> Is that how the non-pitch-changing one works?
Its one of the approaches, yes.
The most appripriate technique depends on the source material.
- Steve
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