.CHAPTER 2 .CHAPTER_TITLE "Microsound" .HEADING 1 Microsound .BLOCKQUOTE Granular synthesis is based on the idea that a steady-state waveform with its time-invariant spectrum, although mathematically convenient, is a physical impossibility because a waveform cannot exist for all time. It stems from a theory of acoustical quanta postulated by Gabor, which recognizes that aural perception is performed in the time and frequency domains simutaneously. In this technique, the fundamental compositional elements that are used to to weave the sound are /grains/: small bursts of energy encased in an envelope. This term is attributed to I. Xenakis who detailed an extensive theory of grain selection. .RIGHT \[em] Charles Dodge, /Computer Music/ .BLOCKQUOTE END \" Synchronous vs asynchoronous production mode \" 5 to 50 ms .COLLATE