Electronic music sampling techniques

Details Electronic music sampling techniques Electronic music sampling techniques

1977-06-07

1981-07-21

Weldon, Ulysses

Music

Instruments

84 103, 84 124, 84 111, 84 119, G10H 100

Patent

active

042791855

ABSTRACT:
The disclosure describes improved apparatus for sampling a digitally-stored waveshape only at a rate 2.sup.N times the fundamental frequency of a note synthesized, where N is an integer. The apparatus includes a digital memory for storing a digital representation of the waveshape. A top octave synthesizer produces clock pulses at a rate 2.sup.N times the fundamental frequency of a desired note. An octave oscillator generates addresses for the digital memory in response to at least some of the clock pulses depending on the octave in which the desired note is located. A digital-to-analog converter converts the output from the digital memory into an analog signal suitable for sound production.

REFERENCES:
patent: 3610799 (1971-10-01), Watson
patent: 3831015 (1974-08-01), Hoff, Jr.
patent: 3878750 (1975-04-01), Kapps
patent: 3894463 (1975-07-01), Rocheleau
patent: 3982460 (1976-09-01), Obayashi et al.
patent: 4023454 (1977-05-01), Obayashi et al.
patent: 4070942 (1978-01-01), Aoki
Korn et al., "Electronic Analog and Hybrid Computers", p. 422, McGraw-Hill, Inc., 1964.

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