Real-time waveform substituting sound engine

Details Real-time waveform substituting sound engine Real-time waveform substituting sound engine

1997-01-17

1999-11-02

Donels, Jeffrey

Music

Instruments

Electrical musical tone generation

84663, G10H 102, G10H 700

Patent

active

059774690

ABSTRACT:
A sound engine in a processor-based system utilizing real-time synthesis optimizes synthesis time, maximizes the number of fully-synthesized sound requests and preserves currently excessive sound requests. During synthesis, the sound engine attempts to full-synthesize all requests. If the sound engine determines that remaining sound requests are excessive and cannot be fully-synthesized, it preserves each excessive request by synthesizing a substitute waveform segment. If the sound engine determines that limiting the number of preserved requests is required, it synthesizes a concluding waveform segment for and then discards selected requests during selected synthesis intervals. Both substitute-synthesis and discarding of sound requests are achieved with minimized detrimental impact on ongoing sound performances.

REFERENCES:
patent: 4520708 (1985-06-01), Wachi
patent: 4635520 (1987-01-01), Mitsumi
patent: 5262581 (1993-11-01), Sharp
patent: 5324882 (1994-06-01), Ohta et al.
patent: 5466882 (1995-11-01), Lee

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