Audio amplifier clipping avoidance method and apparatus

Details Audio amplifier clipping avoidance method and apparatus Audio amplifier clipping avoidance method and apparatus

1996-01-16

1997-09-30

Mullins, James B.

Amplifiers

With control of power supply or bias voltage

With control of input electrode or gain control electrode bias

330279, 330280, 381107, H03G 320

Patent

active

056729995

ABSTRACT:
An audio amplifier clipping avoidance apparatus (140) identifies signal segments of an audio signal that can have an amplitude peak greater than a particular amplifier clip avoidance threshold (530). A scaling factor is determined for each signal segment based on the particular threshold (540). Signal segments are scaled with corresponding scaling factors to produce a modified audio signal having no signal segments with an amplitude peak greater than the particular threshold (560).

REFERENCES:
patent: 4398061 (1983-08-01), McMann, Jr.
patent: 4978926 (1990-12-01), Zerod et al.
patent: 5430409 (1995-07-01), Buck et al.
patent: 5442316 (1995-08-01), Buck et al.
patent: 5453716 (1995-09-01), Person et al.

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