基于广义旁瓣对消和谱减法的麦克风阵列语音增强

Chunhe Yu, Long Su
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引用次数: 9

摘要

GSC(广义旁瓣抵消)算法是一种广泛应用于麦克风阵列的语音增强方法。然而,GSC存在自适应消噪模块的语音偏移较弱、对非相干噪声的消噪能力不够等问题。针对GSC的消噪能力和背景噪声残留问题,提出了一种新的GSC与谱减相结合的语音增强方法。仿真结果表明,该方法能有效抑制背景噪声的影响,提高语音的信噪比和可理解度。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Speech enhancement based on the generalized sidelobe cancellation and spectral subtraction for a microphone array
GSC (Generalized sidelobe canceller) algorithm is a widely used speech enhancement method for a microphone array. Whereas, The GSC has some problems such as: speech offset in adaptive noise cancellation module is weak, noise cancellation capability for non-coherent noise is not enough. Considering the GSC's problems of the noise cancellation capability and the residual background noise, the paper proposes a new combination of GSC and spectral subtraction speech enhancement method. The simulation results show that this method can effectively suppress the influence of the residual background noise and improve speech-noise ratio and intelligibility of speech.
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