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Speech encoding system with increased frequency of determination of analysis coefficients in vicinity of transitions between voiced and unvoiced speech segments
Speech encoding system with increased frequency of determination of analysis coefficients in vicinity of transitions between voiced and unvoiced speech segments
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机译:语音编码系统,在有声和无声语音段之间的过渡附近,确定分析系数的频率增加
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摘要
In a speech encoder (4), a speech signal is encoded using a voiced speech encoder (16) and an unvoiced speech encoder (14). Both speech encoders (14,16) use analysis coefficients to represent the speech signal. The analysis coefficients are determined more frequently when a transition from voiced to unvoiced speech or vice versa is detected. This has been found to achieve significantly improved quality of speech reproduced from the encoded speech signal.
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