Digital audio processing

Details Digital audio processing Digital audio processing

1997-02-21

1999-07-13

Chang, Vivian

Electrical audio signal processing systems and devices

Including amplitude or volume control

With amplitude compression/expansion

333 14, H03G 700

Patent

active

059237686

ABSTRACT:
Digital audio processing apparatus for applying a time-varying gain to an input digital audio signal over contiguous first, second and third time periods, in which: the applied gain changes at no more than a first maximum rate of change during the first time period; the applied gain changes at no more than a second maximum rate of change during the third time period; and during the second time period the rate of change of the applied gain varies monotonically from a substantially zero rate of change towards the second maximum rate of change.

REFERENCES:
patent: 4169219 (1979-09-01), Beard
patent: 4201109 (1980-05-01), Kitagawa
patent: 4376916 (1983-03-01), Glasberson
patent: 4730165 (1988-03-01), Nishino et al.
patent: 5070527 (1991-12-01), Lynn

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