20_10_3
additional parameters: none


The brass timbre emerges with parallel envelope shapes for index
and amplitude, as shown in the figure. This means that overall
spectral richness and amplitude vary in proportion to each other.
The c:m ratio of 1:1 produces components falling in the harmonic
series. By varying the envelope shapes or indices by small
amounts a wide variety of timbres is possible. (Chowning 1973)


(flowchart)
(.orc and .sco files)

