[linux-audio-user] extreme time stretching

Frank Barknecht fbar at footils.org
Mon Mar 15 16:21:00 EST 2004

Erik de Castro Lopo hat gesagt: // Erik de Castro Lopo wrote:

> On Mon, 15 Mar 2004 15:21:01 -0500
> Eric Dantan Rzewnicki <rzewnickie at rfa.org> wrote:
> > For the purposes of time stretching or
> > compressing sound, how does it compare to the way Erik's SRC or
> > SoundTouch work? 
> SoundTouch is a true pithc independant time stretcher.

I think, Soundtouch uses a Fourier-based approach. Granular synthesis
isn't really the best method of clean time stretching, I just
mentioned it as one example of a technique, that can be used to do
extreme streches. 

BTW, one of the beautifullest examples of extreme stretching isn't
Jane Fonda, but the "Beetstretch" project of Leif Inge:
http://www.notam02.no/9/ who stretched Beethoven's 9th Symphony -
which originally is about 1 hour - to be 24 hours long. The
audio-files are several gigabytes large, an obvious use case for

Maybe Kjetil would elaborate a bit, how this was done, as I read that
he was involved in the Beetstretch? 

 Frank Barknecht                               _ ______footils.org__

More information about the Linux-audio-user mailing list