Patent ID: 7211721
Filing Date: 2007-05-01
Classification: G10H,G10L

Abstract:
1. A processor-based method of providing waveforms for use in synthesizing a sound signal with a sound synthesis engine based upon processing of a sound file, the method comprising: performing a read-ahead operation on the sound file during the synthesizing of the sound signal; identifying an instruction in the sound file for synthesizing a waveform of a musical instrument; finding an index of the waveform in a waveform table used by the sound synthesis engine; selecting a set of post-compression coefficients in a post-compression coefficient table corresponding to the index; generating at least one post-compression waveform from the set of post-compression coefficients; placing the at least one post-compression waveform at the index in the waveform table; and supplying the at least one post-compression waveform to the sound synthesis engine in advance of the sound synthesis engine requesting the waveform; wherein the at least one post-compression waveform is based upon the set of post-compression coefficients, the set of post-compression coefficients having been determined by