[sdiy] granular synth on AVR or Ucontrollers??

[Barry Klein]

I wonder if others think the same as I do:
I think this is an exercise in technicality.  Granular isn't musical as much
as a technical exercise.  I don't see how it really relates much to the
original sample source or can be made musical.  I'm not saying it can't be
used in one's work.  It is interesting to listen to to a degree - but it is
kind of like trying to mess with manipulations of primary registers of a
DX-7 oscillator - good luck with making sense of it.  I have a lot of
granular capability in my Capybara 320 (not that I've used it much).  It is
unique but not that different between sample sources and has its own
character that although unique perhaps, I wouldn't know how to make it
musical.
And I'd say no to what you propose.  You need microsamples of audio with
variations in it. Microsamples of a triangle wave would be even more boring
- and why couldn't you just run the audio source material (not just a
triangle wave), sample it granularly, and feed it to a DAC?

Barry


-----Original Message-----
From: synth-diy-bounces at dropmix.xs4all.nl
[mailto:synth-diy-bounces at dropmix.xs4all.nl] On Behalf Of dan snazelle
Sent: Wednesday, April 04, 2012 20:51
To: synth diy
Subject: [sdiy] granular synth on AVR or Ucontrollers??

I have been reading Curtis Roads (MICROSOUND) and it is so inspiring

now I am trying to figure out what is or is not possible with AVRS and
DSPICS (or beyond)

There was the Peter Knight Sketch AUDUINO which talked about using  granular
techniques to end up with a synth that sounds like a couple resonant filters
with oscillators

beyond that, I havent seen any other granular stuff. even peter knights
stuff, I cant read the code and gather how it relates to granular
synthesis...though it sounds great.



from what I read you need to have lots of  bursts of sound that are very
short, each with the same (or different) amplitude envelope 

much of curtis's early work revolved around using sine wave particles.


so

I am wondering if this would work




1. SINE or TRIANGLE WAVETABLE OSCILLATOR which could just be a constant
tone (with CV CONTROLLABLE OR MIDI CONTROLLABLE PITCH)

2. a way to turn that sine on and off for short bursts, either with a VCA,
or just with conditional statements tied to a timer or interrupt

3. a very short envelope that gets triggered at the same time as the sound
is turned on

4. conditionals or pots which allow you to have the bursts change in pitch,
etc

5. send out to the DAC




any thoughts?

thanks








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