Method for voice signal coding and/or decoding by means of a long term prediction and a multipulse excitation signal
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United States of America Patent
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Jun 12, 2001
Grant Date -
N/A
app pub date -
Mar 23, 2000
filing date -
Jul 10, 1997
priority date (Note) -
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Abstract
This invention relates to a method for voice signal coding and/or decoding. According to this method, a voice signal analysis for determining the prediction parameters is carried out from a digital voice signal. An excitation signal component (ENtp) is determined from an adaptive code book (3) built from a delayed integral excitation signal (Ev). Further, a multipulse component of the excitation signal is determined (4) by minimising the effect of the weighting filtered difference between the signal resulting from the respective excitation signal and the input voice signal.
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