Signal compression method and apparatus
A signal compression method includes: multiplying an input signal by a window function, calculating original autocorrelation coefficients of a windowed input signal. The method also includes calculating a white-noise correction factor or a lag-window according to the original autocorrelation coefficients, and calculating modified autocorrelation coefficients according to the original autocorrelation coefficients, the white-noise correction factor and the lag-window. The method further includes calculating linear prediction coefficients according to the modified autocorrelation coefficients, and outputting a coded bit stream according to the linear prediction coefficients.
Huawei Technologies Co., Ltd.
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inventional inventional
Jianfeng Fengyan Qing Herve Marcel Lei Dejun
Xu Qi Zhang Taddei Miao Zhang