80_01_1
additional parameters: many


This run unites two instruments like siamese twins. 

Instrument 1 basically consists of a carrier (3 or 6 harmonics),
an envelope and a LFO modulation of amplitude, imparting some
vibrato effect. The effect of the RANDI unit is negligible.

Instrument 2 (see right figure) produces a slightly amplitude
modulated sinus tone, whose frequency is controlled by two linear
functions. One of these functions does nothing (!). This in
contrast to f9, which brings in a frequency rise of 10%, from 90%
to 100% of the specified frequency (which is really the amplitude
input of the oscillator).


The function of instrument 2 is partly to emulate the attack
portion of a flute tone and partly to enrich the timbre of the
complete tone (when playing parallel to instrument 1).

For an acoustic impression of the complexity of this design, one
should listen to the two instruments apart. The score files
80_01_2B.SCO and 80_01_2C.SCO are included in the catalogue to
this end. (Risset 1969: #100; Vercoe 1993: morefiles/risset1.orc)

(flowcharts, envelopes)
(.orc and .sco files)

