Music – Instruments – Electrical musical tone generation
Patent
1988-11-29
1989-10-31
Witkowski, Stanley J.
Music
Instruments
Electrical musical tone generation
84DIG12, 84DIG22, G10H 140, G10H 700
Patent
active
048769371
ABSTRACT:
An automatic tone producing apparatus produces tones at a rhythmic alignment by reading a memory which stores a train of tones of various instruments aligned in sequence to be respectively sounded at different time points to constitute a predetermined length of musical progression. The alignment intervals are irrelevant to the rhythm to be reproduced. The memory includes a plurality of memory areas which are alotted to and store the respective tones, and each of the memory areas is comprised of memory portions to store wave sample data of the each alotted tone. The memory areas to be read out are sequentially designated at a rhythmic pattern of a selected tempo, and the wave sample data within the designated memory area are read out at a predetermined speed independent of the tempo. Thus the tones having live sound properties are produced at various tempos but retaining the pitches of the respective tones.
REFERENCES:
patent: 4162644 (1979-07-01), Sakashita
patent: 4186639 (1980-02-01), Robinson et al.
patent: 4217804 (1980-08-01), Yamaga
patent: 4217806 (1980-08-01), Sakai et al.
patent: 4275634 (1981-06-01), Imamura et al.
patent: 4424731 (1984-01-01), Howell
Witkowski Stanley J.
Yamaha Corporation
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