[LAD] Time-Stretch

[m.wolkstein at gmx.de]

Am Sun, 2 Jan 2011 23:13:24 +0100
schrieb Arnout Engelen <lad at bzzt.net>:

hydrogen 0.9.5 at www.hydrogen-music.org an advanced linux drum machine can do this by using the rubberband-cli.

watch this video.
http://www.youtube.com/watch?v=8h0ecGRHHSo

in h2 trunk version you can fit a loop to beats without pitch effect.
if you work with the h2 sampleeditor and rubberband, h2 use everytime the current bpm value to calculate the needed time stretch.
if you change the bpm value later, its possible to activate a batch prozessor which recalculate all samples which use the rubberband miracle to correct the corresponding time stretch to fit to the new bpm value.

greetings wolke 
 

> Hi Harry,
> 
> Seconding the rubberband suggestion, the 'stretchplayer' audio player 
> (by Gabriel M. Beddingfield) demonstrates rubberband being applied in 
> real-time.
> 
> 
> Arnout
> 
> On Sun, Jan 02, 2011 at 03:11:04PM -0500, Paul Davis wrote:
> > On Sun, Jan 2, 2011 at 2:51 PM, Harry Van Haaren <harryhaaren at gmail.com> wrote:
> > > Hey all,
> > > I'm looking for an open-source time-stretching library, suitable for RT
> > > work.
> > > I've googled and come up with the following list, which I can't choose from:
> > > -Soundtouch : http://www.surina.net/soundtouch/index.html
> > > -ClearScale / DspDimension: http://www.clearscale.org/
> > > -SecretRabbitCode / libsamplerate : http://www.mega-nerd.com/SRC/
> > > -LibResample : https://ccrma.stanford.edu/~jos/resample/
> > > -MFFM timescale: http://mffmtimescale.sourceforge.net/
> > > -LibZita-Resampler: http://www.kokkinizita.net/linuxaudio/zita-resampler/resampler.html
> > 
> > i'm not sure how you missed rubberband from chris cannam.
> > 
> > http://breakfastquay.com/rubberband
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