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

trying to add a little bit... the main idea around granular synthesis is to make a continuous sound from a bunch of sound grains. There are different specifications for the typical grain size, i prefer to stick to barry trouax, saying that _typical_ grains have durations between 20 and 50 ms. These collections of grains are called clouds, which preferably evolve in time in some different ways (static sounds are usually not interesting) and in which the grains are superimposed at least a little bit. imho, to start with, its a good idea to make a cloud with sinusoidal grains, all equal and overlapping equally as well. And, as time passes, change just one parameter of them all, like duration, fade time, or spectral content. In a second experiment I would be playing with sampled grains, which usually give nice results ;o) about an example of it, i´ve made a highly experimental python script to impose group theory on granular synthesis. It is not a typical GS algorithm as it does not deal with a high density of grains. And i find it better for making melodic lines. runs only on linux and requires sagehttp://www.sagemath.org/intalled with external python packages installed on its own python interpreter.... anyway, its here: http://cortex.lems.brown.edu/~renato/sonic-art/nicshttp://cortex.lems.brown.edu/%7Erenato/sonic-art/nics cheers, renato 2008/5/22 kevin :

I can't give you a much better description than what Kassen's already given, as I'm not really that knowledgeable on the subject either, but baeksan over on the monome forums has posted what he calls a "multigrain granular synth" patch written in ChucK.

The forum thread is at http://post.monome.org/comments.php?DiscussionID=1011

Best, -K

On Thu, May 22, 2008 at 4:55 AM, AlgoMantra wrote:

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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)?

I would lurrrv an example in Chuck too!

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