arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1909.04776eess.AScs.SD
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基于克隆网络的生成式语音增强

Generative Speech Enhancement Based on Cloned Networks

Michael Chinen, W. Bastiaan Kleijn, Felicia S. C. Lim, Jan Skoglund

摘要:

我们提出了实现语音增强的再生干净的语音从一个显着的表示提取的噪声信号。使用提取器网络的一组权重共享克隆来训练提取显著特征的网络。克隆接收相同语音信号的不同噪声版本的梅尔频谱作为输入。通过鼓励克隆的输出对于这些不同的输入信号是相似的,我们训练一个对噪声鲁棒的特征提取器网络。在推理时,显著特征形成WaveNet网络的输入,WaveNet网络生成具有与地面真实干净信号相同属性的自然干净语音信号。随着信号变得越来越嘈杂,我们的系统会产生自然的声音错误,这些错误会留在语音流形上,而不是在其他系统中发现的传统人工制品。我们的实验证实,我们的生成增强系统提供了国家的最先进的增强性能的生成类增强器根据MUSHRA样测试。基于克隆的系统匹配或优于其他系统在每个输入信噪比(SNR)范围内具有统计学意义。

英文摘要:

We propose to implement speech enhancement by the regeneration of clean speech from a salient representation extracted from the noisy signal. The network that extracts salient features is trained using a set of weight-sharing clones of the extractor network. The clones receive mel-frequency spectra of different noisy versions of the same speech signal as input. By encouraging the outputs of the clones to be similar for these different input signals, we train a feature extractor network that is robust to noise. At inference, the salient features form the input to a WaveNet network that generates a natural and clean speech signal with the same attributes as the ground-truth clean signal. As the signal becomes noisier, our system produces natural sounding errors that stay on the speech manifold, in place of traditional artifacts found in other systems. Our experiments confirm that our generative enhancement system provides state-of-the-art enhancement performance within the generative class of enhancers according to a MUSHRA-like test. The clones based system matches or outperforms the other systems at each input signal-to-noise (SNR) range with statistical significance.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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