首页> 外国专利> A method and apparatus for reducing the undesirable characteristics of spectral estimation of a noise signal during speech signal generation (Mtthod amp; Apparatus For Reducing An Undesirable Characteristic Of A Spectral Estimate Of A Noise Signal Between Occurrence Of Voice Signals)

A method and apparatus for reducing the undesirable characteristics of spectral estimation of a noise signal during speech signal generation (Mtthod amp; Apparatus For Reducing An Undesirable Characteristic Of A Spectral Estimate Of A Noise Signal Between Occurrence Of Voice Signals)

机译:减少语音信号生成过程中噪声信号频谱估计的不良特性的方法和装置(用于减少语音信号发生之间噪声信号频谱估计的不良特性的方法和装置)

摘要

An improved method and apparatus for reducing the undesirable characteristics of the spectral estimation of the noise signal (203) during the generation of the speech signal (202) in the input signal (117). The spectrum of the input signal 117 is evaluated for spectral estimation 119 of the undesired characteristic-containing input signal 117 of the noise signal 203. The spectrum of the input signal 117 is substantially equal to the second bandwidth f3-f4, which is substantially greater than the first bandwidth f3-f4, over the first bandwidth f3-f4 during the speech signal 202 generation and during the speech signal 202, And smoothed over the bandwidth f2-f5. Also, the spectral estimation 119 of the input signal 117 is filtered during the speech signal 202 generation. The validity of the magnitude and / or phase component of the polls 301-305, which also represent the spectral estimation 119 of the input signal 117 during the generation of the speech signal 202, 0.0 120 /RTI
机译:一种用于在输入信号(117)中的语音信号(202)的产生期间减少噪声信号(203)的频谱估计的不良特性的改进的方法和设备。针对噪声信号203的不期望的包含特性的输入信号117的频谱估计119,评估输入信号117的频谱。输入信号117的频谱基本上等于第二带宽f3-f4,第二带宽f3-f4实质上更大。在语音信号202生成期间和语音信号202期间,第一带宽f3-f4在第一带宽f3-f4上大于第一带宽f3-f4,并且在带宽f2-f5上平滑。另外,在语音信号202生成期间,对输入信号117的频谱估计119进行滤波。轮询301-305的幅度和/或相位分量的有效性,这也代表在生成语音信号202期间输入信号117的频谱估计119,0.0> 120

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