Unified denoising and dereverberation method used in restoration of MTF-based power envelope
Unified denoising and dereverberation method used in restoration of MTF-based power envelope
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统一去噪和去混响方法用于恢复基于MTF的功率包络
DOI：
10.1109/iscslp.2012.6423499
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发表时间：
2012
期刊：
影响因子：
--
通讯作者：
Masashi Unoki and Xugang Lu
中科院分区：
文献类型：
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作者：
Masashi Unoki;Tomohiro Ikeda;Kyohei Sasaki;Ryota Miyauchi;Masato Akagi;and Nam Soo Kim;Kyohei Sasaki and Masashi Unoki;Kieu Coung Tien;長濱 虎太郎;Kyohei Sasaki and Masashi Unoki;Masashi Unoki and Xugang Lu
最近的语音增强方法已经被提出来抑制背景噪声和混响的影响。在这些方法中，背景噪声的影响被认为是加性的，混响的影响是卷积的。因此，降低噪声和去混响的方法已经被分开地串联应用。我们以前统一的调制传递函数（MTF）的概念中的噪声和混响的影响，我们提出了一种方法，同时消除噪声和混响的影响。本文进一步验证了我们提出的方法，数学和定量。此外，通过数学分析，将该模型推广到四类真实的应用场景，分别对应于混响噪声条件下的远场和近场条件。我们根据去噪和去混响噪声混响语音的四个应用场景对每个场景进行了12，000次模拟，并客观地评估了所提出的方法。实验结果表明，该方法能够同时对混响语音进行去噪和去混响。
Recent methods of speech enhancement have been proposed to suppress the effects of background noise and reverberation. The effect of background noise in these methods is regarded as additive and that of reverberation is convolutive. Therefore, methods of reducing noise and dereverberation have been applied separately in tandem. We previously unified the effects of noise and reverberation in the modulation transfer function (MTF) concept and we proposed an approach to simultaneously removing the effects of noise and reverberation. This paper further verifies our proposed approach, mathematically and quantitatively. In addition, we generalized the model to four types of real application scenarios, which corresponded to far and near field conditions under noisy reverberant conditions, based on mathematical analysis. We carried out 12,000 simulations for each according to the four application scenarios for denoising and dereverberating noisy reverberant speech, and objectively evaluated the proposed approach. The experimental results revealed that the proposed approach worked well in simultaneously denoising and dereverberating noisy reverberant speech.