Envelope generating apparatus

Details Envelope generating apparatus Envelope generating apparatus

1991-09-06

1993-04-06

Witkowski, Stanley J.

Music

Instruments

Electrical musical tone generation

G10H 1057

Patent

active

052005674

ABSTRACT:
An envelope extracting circuit extracts an envelope from the waveform sampled by a musical tone sampling circuit, and stores the envelope data into a memory. An envelope approximating circuit approximates the envelope data as stored in the memory by the function data such as linear or exponential function data. The original envelope is approximated by a limited number of function waveforms whose characteristics change at switching points.

REFERENCES:
patent: 4342245 (1982-08-01), Gross
patent: 4357852 (1982-11-01), Suenaga
patent: 4360708 (1982-11-01), Taguchi et al.
patent: 4422363 (1983-12-01), Deforeit
patent: 4463649 (1984-08-01), Tokushima
patent: 4483229 (1984-11-01), Tsukamoto et al.
patent: 4584541 (1986-04-01), Nossen
patent: 4606255 (1986-08-01), Hayashi et al.
patent: 4608703 (1986-08-01), Kaga et al.
patent: 4628787 (1986-12-01), Nozawa
patent: 4691216 (1987-09-01), Asahi et al.
patent: 4691608 (1987-09-01), Sasaki et al.
patent: 4715257 (1987-12-01), Hoshiai et al.
patent: 4719833 (1988-01-01), Katoh et al.
patent: 4754679 (1988-07-01), Suzuki et al.

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