The Development of GiST, a Granular Synthesis
Toolkit Based on an Extension of the FOF Generator.
The application features a powerful real-time granular synthesis
audio engine that enables the user to change the pitch, speed, gate, sample order, sample size and randomness of samples by using the iPhone's accelerometer.
This second edition differs most notably from the first, published in 1985, in its addition of several ideas and techniques that have since gained greater prominence, such as phase vocoding, granular synthesis
, and physical modeling.
For the synthesis of the tape sounds, I have made use of programs (that I have written myself in such straightforward languages as TURBO PASCAL and QUICKBASIC) for non-real-time granular synthesis
and processing of sound, running on a 486 PC.
The first two sections explore the wavelet transform, under the general theme of combined time-frequency representations, and the closely related technique of granular synthesis
, and together occupy almost half the text, a dominance which certainly reflects their increasing importance to both composers and researchers, but which some readers may well feel is at the expense of reduced coverage of other important areas of research.