Voice coding method, the system transmitter and receiver of the voice signal to encode and decode the input signal, encoder, mobile station and network element

摘要

"Encoding method of voice, the system transmitter and receiver of the voice signal to encode and decode the input signal, encoder, mobile station and network element.Method for encoding voice and apparatus for encoding and decoding an input signal (100) and provide the synthesised voice (110).Where the components of frequ00b3u00eancia higher (160) of the synthesised voice (110) are achieved by high pass filter and coloring the artificial signal (150) to provide an artificial signal processed (154).The artificial signal processed (154) is scheduled (530, 540) the first scale factor (114, 144) during the periods of the voice of the input signal (100) and the second scale factor (114 and 115,144 and 145) during periods of non active voice, where the first scale factor (114.144) is characteristic of the higher frequ00b3u00eancia band of the input signal (100) and the second scale factor (114 and 115,144 and 145) is typical of the lower frequ00b3u00eancia band of the input signal (100).In particular, the second scale factor (114 and 115,144 and 145) is estimated based on the components of the frequ00b3u00eancia bottom of the synthesised voice (110) and the color of the artificial signal (150) is based on the coefficients (104) of linear prediction coding of faceCteru00edsticos of frequ00b3u00eancia less of the input signal (100).