Re: [linux-audio-dev] time-stretching filters (was: LADSPA Specs)

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Subject: Re: [linux-audio-dev] time-stretching filters (was: LADSPA Specs)
From: Steve Harris (S.W.Harris_AT_ecs.soton.ac.uk)
Date: Sun May 12 2002 - 17:19:14 EEST

On Sun, May 12, 2002 at 12:50:58 +0300, Jussi Laako wrote:
> Lance Blisters wrote:
> >
> > I'd also be interested in the pitch-invariant type of time-strecth
> > filter, if anyone has an implementation which sounds better than
> > the blind overlap-and-crossfade approach we use in GDAM's respeed
> > plugin.
>
> That could be done using FFT. You can do either resampling or pitch
> shifting, or both.

Yep, see www.dspdimension.com for the maths and a sample implementation.

- Steve

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