Re: [chuck-users] Granular synthesis in ChucK (was: Re: [livecode] granular music recommendations?)

I'd suggest it can even be generalised a little more than Kassen has described; grains may be purely synthesised, rather than using a signal in a buffer. Also, I noticed someone posted this link from Sound On Sound before; it seems to function as a good intro, so I'll repeat it: http://www.soundonsound.com/sos/dec05/articles/granularworkshop.htm Cheers, Peter On Thu, May 22, 2008 at 2:54 PM, Kassen wrote:

2008/5/22 Martin Ahnelöv :

...

I'm not 100% sure I understand the concept of granular synthesis, and I can't afford a book right now, so I'm asking if you guys got an example/demo of the technique which I could study (preferably in ChucK)?

Well, the basic idea is to take some signal in a buffer and play back bits (grains) of it, especially small bits, typically around 50::ms (give or take a few octaves). The 50::ms comes from that being the threshold where human hearing will still detect pitch (20Hz) You can play back just a few grains every once in a while, resulting in a rhythmical pattern or lots&lots of them for noisy textures. A simple intro is found here as well; http://en.wikipedia.org/wiki/Granular_synthesis There are some examples in the LiSa examples ( /examples/special/ ), but those might not be general enough for you.

I'll cook up a example for you tonight or tomorrow or so, could be fun. :¬)

Kas.

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