[music-dsp] time stretching

[Dave Hoskins]

If you need something fast for a game, then perhaps your best bet is to use 
a simple time domain technique with 'grains.'
I think that this plug-in http://bram.smartelectronix.com/plugins.php?id=2 
uses something similar. There's source code, and it mentions there's a C 
version somewhere, but the sourceforge references appear to be empty at the 
moment.

Doing a google search on something like "granular pitch shift source code" 
brings up a lot of references too.
It's the fastest way of getting a rough pitch shift, and works OK if your 
grains are about 50ms in length.

Cheers,
Dave H.


----- Original Message ----- 
From: "Sebastian Stober" <stober at ovgu.de>
To: <music-ir at listes.ircam.fr>; <music-dsp at music.columbia.edu>
Sent: Thursday, June 10, 2010 6:35 AM
Subject: [music-dsp] time stretching


> Hi,
>
> I am looking for an open source implementation of a time stretching
> algorithm that can be used to manipulate audio in real time - preferably
> in Java, but C should be fine as well.
> It does not need to be very sophisticated as it is only intended for a
> small game.
>
> Any suggestions, links etc. would be highly appreciated.
>
> Cheers,
> Sebastian
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