[PD] Granular Synth

Nick Mariette nmariette at gmail.com
Thu Apr 28 06:51:34 CEST 2005

For sub-block envelope accuracy, you may be able to use the "Time 
Tagged Triggers" (T3) objects in IEMLIB by Thomas Musil.
Or you will have to write an external.  I can't think of another way... 
anyone else have ideas there?

By the way, I have a survey of quite a few granular objects and patches 
for Pd on my puredata.info page here:

I also updated my nm-grainer patch to incorporate OSC input facilities, 
changed to horizontal sliders, made the controls a bit more obvious, 
and removed graph on parent functionality to improve speed.
That patch is online at my puredata.info page - look for the April 2005 


On 28/04/2005, at 10:08 AM, Spencer Russell wrote:

> On Wed, Apr 27, 2005 at 09:02:40PM +0200, 
> julien.breval at tremplin-utc.net wrote:
>> you should use |vd~| or |delread~| rather than |tabread4~| (this one 
>> is for
>> reading in |array| or |table|)
> thanks for the tip. It's working much better now. :)
>> to get a granular effect, change the delay time just before you
>> trigger the amplitude envelope; you can omit the amplitude
>> enveloppe but it's good for fragmenting sounds (some people
>> also add a synchronized filter and/or a pitch shift) most of
>> the time, the enveloppe lasts between 10 and 100 ms; you can
>> use constant or variable enveloppe times (you can also add a
>> random density parameter for the "trigger enveloppe" event)
>> use some feedback too if you want to get more complex
>> fragmented things
>> to remove the doppler effect, there are two basic methods: 1.
>> use a sample and hold, like in the sampler.transpose.pd example
>> by Miller Puckette (this method is rather suited to constant
>> enveloppe time / synchronous granular synthesis; the whole
>> granulator is scheduled by a single |phasor~|)
> OK, so using a samphold~, phasor~, and vd~, I've got the
> envelope-less granulator going, but how do I trigger the envelope
> with sub-block accuracy? I can use vline~ create the envelope
> itself, but getting it started is the problem.
> -spencer
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