Method and system for reducing a voice signal noise
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United States of America Patent
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Jun 24, 2008
Grant Date -
Sep 23, 2004
app pub date -
Oct 2, 2002
filing date -
Oct 12, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method is provided whereby, before being subjected to a low rate voice coding, an incoming digital voice signal is chronologically segmented into blocks, the blocks are broken down respectively, in chronological order, into frequency components by a transformation in the frequency range and the frequency components are multiplied by weight factors depending on the frequency and modifiable in time, a frequency component being multiplied by the last weight factor calculated for the frequency component if the factor is less than the current weight factor.
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