Peak-limiting apparatus for audio signal
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United States of America Patent
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-
Dec 23, 1980
Issued Date -
N/A
app pub date -
Feb 5, 1979
filing date -
Feb 5, 1979
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A circuit which provides a control signal to dynamically adjust the level of clipping for an audio signal is described. The criterion for allowable clipping employed by the circuit is whether the clipper induced distortion is noticeable; the clipper induced distortion may be audible, however, remain unnoticeable. A frequency weighted correlation is performed on the audio signal to evaluate the waveform and establish an unnoticeable level of clipping.
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