03_01_1
additional parameters: iamp2, iamp4, ifq5, ifq7


This instrument forms the sum of a noise band, sine wave and an
inharmonic spectrum. 

Noise band.
Parameter ifq5 tells us the center frequency of the noise band,
ifq7 gives half of its bandwidth and its envelope is controlled
by the exponential f52 (1-2-12).

Fundamental.
The wave of function 12 plays the 10th harmonic of the
fundamental frequency ifq1. Setting ifq1 to 20Hz will produce a
sinus at 200 Hz. 

Inharmonic spectrum.
The parameter ifq1 is used again to build an inharmonic spectrum
from a wave that contains only high frequency components
(harmonics 10,16,22 & 23).

Section 1 plays a snare-like tone, with a noise centered at 4000
Hz and a bandwidth of 3000 Hz. 

Section 2 turns the snares off (iamp7 = 0) and plays four
pitches: 120, 140, 150 and 160 Hz.

In section 3 the snares return with a rhythmic pattern.
(Risset 1969: #400)

(flowchart)
(.orc and .sco files)

