Digital tone generation system utilizing fixed duration time fun

Details Digital tone generation system utilizing fixed duration time fun Digital tone generation system utilizing fixed duration time fun

1982-08-27

1984-05-08

Witkowski, Stanley J.

Music

Instruments

84 119, 84DIG9, 84DIG10, G01H 1057, G01H 106

Patent

active

044467702

ABSTRACT:
A tone generation system intended primarily for use in electronic musical instruments wherein a digital representation of a harmonically rich waveform is sampled, and a musical tone is produced therefrom. The stored waveform could be the four term Blackman-Harris window function, which has negligible side lobes and thus greatly attenuated higher harmonics. The stored function is read out at a fixed rate, but the time periods between successive readings of the waveform are varied to thereby vary the frequency of the output signal.

REFERENCES:
patent: 3515792 (1970-06-01), Deutsch
patent: 3639913 (1972-02-01), Watson
patent: 3668294 (1972-06-01), Kameoka et al.
patent: 3763364 (1973-10-01), Deutsch et al.
patent: 3809786 (1974-05-01), Deutsch
patent: 3809788 (1974-05-01), Deutsch
patent: 3809789 (1974-05-01), Deutsch
patent: 3894463 (1975-07-01), Rocheleau
patent: 3908504 (1975-09-01), Deutsch
patent: 3913442 (1975-10-01), Deutsch
patent: 3956960 (1976-05-01), Deutsch
patent: 4085644 (1978-04-01), Deutsch et al.
patent: 4108036 (1978-08-01), Slaymaker
patent: 4130043 (1978-12-01), Niimi
patent: 4150600 (1979-04-01), Deutsch
patent: 4176577 (1979-12-01), Yamada et al.
patent: 4205574 (1980-06-01), Hoskinson et al.
patent: 4265157 (1981-05-01), Fricke et al.
patent: 4282790 (1981-08-01), Wachi
Harold G. Alles, "Music Synthesis Using Real Time Digital Techniques," Apr. 1980 Proceedings of the IEEE, vol. 68, pp. 436-449.
Fredric J. Harris, "On the Use of Windows For Harmonic Analysis with Discrete Fourier Transform," Jan. 1978, Proceedings of the IEEE, vol. 66, No. 1, pp. 51-83.

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