arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2008.09264eess.AScs.LGcs.SD
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CITISEN:基于深度学习的语音信号处理移动应用

CITISEN: A Deep Learning-Based Speech Signal-Processing Mobile Application

Research Center for Information Technology Innovation at Academia Sinica(中央研究院资讯科技创新研究中心)

Yu-Wen Chen, Kuo-Hsuan Hung, You-Jin Li, Alexander Chao-Fu Kang, Ya-Hsin Lai, Kai-Chun Liu, Szu-Wei Fu, Syu-Siang Wang, Yu Tsao

摘要:

这项研究提出了一个基于深度学习的语音信号处理移动应用程序,称为CITISEN。CITISEN提供三种功能:语音增强(SE)、模型自适应(MA)和背景噪声转换(BNC),允许CITISEN用作使用和评估SE模型的平台,并灵活地扩展模型以应对各种噪声环境和用户。对于SE,从云服务器下载的预训练SE模型用于有效地减少来自用户提供的即时或保存的记录的噪声分量。对于遇到看不见的噪声或扬声器环境,MA功能被应用于提升CITISEN。上传在嘈杂环境中录制的一些音频样本,并用于在服务器上调整预训练的SE模型。最后,对于BNC,CITISEN首先通过SE模型去除背景噪声,然后将处理后的语音与新的背景噪声混合。新的BNC功能可以评估特定条件下的SE性能,覆盖人们的轨迹,并提供娱乐。实验结果证实了SE、MA和BNC函数的有效性。与含噪语音信号相比,增强后的语音信号在短时客观可懂度(STOI)和语音质量感知评价(PESQ)方面分别提高了约6%和33%。MA可使STOI和PESQ分别提高约6%和11%。最后,BNC实验结果表明,从噪声背景和无声背景转换的语音信号具有相近的场景识别精度,并且在声学场景分类模型中具有相似的嵌入。因此,提出的BNC可以有效地转换语音信号的背景噪声,并在干净的语音信号不可用时作为数据增强方法。

英文摘要:

This study presents a deep learning-based speech signal-processing mobile application known as CITISEN. The CITISEN provides three functions: speech enhancement (SE), model adaptation (MA), and background noise conversion (BNC), allowing CITISEN to be used as a platform for utilizing and evaluating SE models and flexibly extend the models to address various noise environments and users. For SE, a pretrained SE model downloaded from the cloud server is used to effectively reduce noise components from instant or saved recordings provided by users. For encountering unseen noise or speaker environments, the MA function is applied to promote CITISEN. A few audio samples recording on a noisy environment are uploaded and used to adapt the pretrained SE model on the server. Finally, for BNC, CITISEN first removes the background noises through an SE model and then mixes the processed speech with new background noise. The novel BNC function can evaluate SE performance under specific conditions, cover people's tracks, and provide entertainment. The experimental results confirmed the effectiveness of SE, MA, and BNC functions. Compared with the noisy speech signals, the enhanced speech signals achieved about 6\% and 33\% of improvements, respectively, in terms of short-time objective intelligibility (STOI) and perceptual evaluation of speech quality (PESQ). With MA, the STOI and PESQ could be further improved by approximately 6\% and 11\%, respectively. Finally, the BNC experiment results indicated that the speech signals converted from noisy and silent backgrounds have a close scene identification accuracy and similar embeddings in an acoustic scene classification model. Therefore, the proposed BNC can effectively convert the background noise of a speech signal and be a data augmentation method when clean speech signals are unavailable.

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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