Decorrelation as a By-Product of Granular Synthesis

Several researchers (Kendall, 1995; Truax, 1992) have noted that decorrelation occurs as a byproduct of granular synthesis (GS). Decorrelation between grain streams is responsible, for instance, for the unique stereo and panning effects that have been achieved under GS transformation. The correlation measure itself, however, is not generally explicit or variable within existing synthesis models. The following paper describes a systematic approach to granular decorrelation, relating individual parameters to their effect upon grain-to-grain, cross-channel (stream) and instance (event) signal correlation.