SGRANR

stochastic granular synthesis (in package insts.std)


SGRANR does stochastic granular synthesis. It's a fairly powerful instrument, with lots of snazzy gen-envelope controls to produce evolving granular textures. To best understand the concepts behind the design of this instrument, see Mara Helmth's papers on the use of these techniques.

It was originally adapted from the older sgran Cmix instrument, also written by Mara.


p-fields: 
/* SGRANR: a simple stochastic gran instrument
 
   p0 = start_time
   p1 = duration
   p2 = amplitude
   p3 = rate, p4-7 = ratevar
   p8-11 = duration
   p12-15 = location
   p16-19 = freq
   p20  = granlayers (not in use)
   p21 = seed
   assumes function table 1 is the amplitude envelope
   function table 2 is the synthesis waveform,
   function table 3 is grain amplitude envelope
*/
Sample scorefile: 
rtsetparams(44100, 2)
load("SGRANR")

makegen(1, 7, 1000, 1, 950, 1, 50, 0)
makegen(2, 10, 1000, 1)
makegen(3, 7, 1000, 0, 500, 1, 500, 0)
start = 0.0
SGRANR(start, 3, 5000, 
/* grain rate, ratevar values (must be positive, 
	% until next grain possible displacement): */
.1, 0.1, 0.1, 0.1, 1.0,
/* duration values: */
.1,.1,.1,2, 
/* location values: */
0.0,.5,1.0,1.0, 
/* pitch values: */
800,1000,9700,2,
/* granlyrs, seed */
1,1)

SEE ALSO

STGRANR


AUTHOR

Mara Helmuth (mara at meowing dot ccm dot uc dot edu)