Methods and arrangements in a telecommunications network
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United States of America Patent
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May 20, 2014
Grant Date -
May 23, 2013
app pub date -
Jan 21, 2013
filing date -
Mar 2, 2007
priority date (Note) -
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Abstract
The present invention relates to a postfilter and a postfilter control to be associated with a postfilter for improving perceived quality of speech reconstructed at a speech decoder. The postfilter control comprises means for measuring stationarity of a speech signal reconstructed at a decoder, means for determining a coefficient to a postfilter control parameter based on the measured stationarity, and means for transmitting the determined coefficient to a postfilter, such that the postfilter can process the reconstructed speech signal by applying the determined coefficient to the postfilter control parameter to obtain an enhanced speech signal.
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