Music chip

Details Music chip Music chip

1997-01-22

1999-05-18

Shoop, Jr., William M.

Music

Instruments

Electrical musical tone generation

84602, 84604, 84621, 84622, 84625, G10H7/00;1/08

Patent

active

059052210

ABSTRACT:
The present invention discloses a digital processing device with smooth-clipping function and a digital musical tone synthesizing device using it. When one or a plurality of digital values are input to the digital processing device and a smooth-clipping mode is activated, an overflow during processing of the digital values is avoided as the internal resulting value of the device is scaled down before it is output. The scaling down of the internal resulting value is continuously increased in dependence on the increase of the value of the internal resulting value, such that an overflow is avoided. For example, if the digital processing device is performing a summation of two digital operands in a digital musical tone forming device, the time behavior of the resulting tone signal slope is smooth and thus the sound dynamics are improved and sound distortions are avoided during sound reproduction.

REFERENCES:
patent: 4986159 (1991-01-01), Matsushima et al.
patent: 5381356 (1995-01-01), Takahashi
patent: 5448509 (1995-09-01), Lee et al.
Deforeit et al., "A Music Synthesizer Architecture which Integrates a Specialized DSP Core and a 16-bit Microprocessor on a Single Chip", presented at the 98th Convention of the Audio Engineering Society, Feb. 25, 1995.

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