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首页> 外文期刊>Circuits, systems, and signal processing >Whispered Speech Enhancement Based on Improved Mel Frequency Scale and Modified Compensated Phase Spectrum
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Whispered Speech Enhancement Based on Improved Mel Frequency Scale and Modified Compensated Phase Spectrum

机译：基于改进的梅尔频率尺度和修正的补偿相位谱的低语语音增强

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摘要

The whispered speech enhancement based on a novel improved Mel frequency scale is investigated in the proposed algorithm. The scale is derived from the characteristics of whispered speech. The whispered speech magnitude spectrum recombines with a changed phase spectrum in the process of synthesis rather than preserving the noisy whispered speech phase spectrum. The significance of phase correction is that the low-energy component of the new complex spectrum cancels more than the high-energy component, thus removing background noise as much as possible. Moreover, the noise estimation parameter in the compensated phase is obtained by a new method. This algorithm tries to find a trade-off mechanism between the whispered speech distortion, the noise reduction and the level of remnant music noise. The objective and subjective evaluations show that the proposed algorithm outperforms comparable whispered speech enhancement algorithms.
机译：该算法研究了一种基于新型改进的梅尔频率尺度的耳语语音增强算法。量表是从耳语的特征得出的。在合成过程中，耳语语音幅度频谱会与变化的相位频谱重新组合，而不是保留嘈杂的耳语语音相位频谱。相位校正的意义在于，新的复杂频谱的低能量分量比高能量分量抵消更多，从而尽可能多地消除背景噪声。此外，通过新方法获得了补偿相位中的噪声估计参数。该算法试图在耳语语音失真，降噪和残余音乐噪声水平之间找到一种折衷的机制。客观和主观的评估表明，所提出的算法优于可比的耳语语音增强算法。

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  • 来源
    《Circuits, systems, and signal processing》 |2019年第12期|5839-5860|共22页
  • 作者

    Wei Yi; Li Chen; Li Tianfeng; Zeng Yumin;

  • 作者单位

    Nanjing Normal Univ Sch Phys & Technol Nanjing 210023 Jiangsu Peoples R China;

    Nanjing Normal Univ Sch Phys & Technol Nanjing 210023 Jiangsu Peoples R China|Nanjing Normal Univ Minist Educ Key Lab Virtual Geog Environm Nanjing 210023 Jiangsu Peoples R China|State Key Lab Cultivat Base Geog Environm Evolut Nanjing 210023 Jiangsu Peoples R China|Jiangsu Ctr Collaborat Innovat Geog Informat Reso Nanjing 210023 Jiangsu Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Whispered speech enhancement; Mel frequency scale; Modified phase; Noise estimation;

    机译：低语增强语音;梅尔频率刻度;修改阶段;噪声估计;

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