CN111226277A - 语音增强方法及装置 - Google Patents

语音增强方法及装置 Download PDF

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CN111226277A
CN111226277A CN201880067882.XA CN201880067882A CN111226277A CN 111226277 A CN111226277 A CN 111226277A CN 201880067882 A CN201880067882 A CN 201880067882A CN 111226277 A CN111226277 A CN 111226277A
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power spectrum
noise
spectral
power
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CN111226277B (zh
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胡伟湘
苗磊
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Huawei Technologies Co Ltd
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    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/0208—Noise filtering
    • G10L21/0216—Noise filtering characterised by the method used for estimating noise
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/008—Multichannel audio signal coding or decoding using interchannel correlation to reduce redundancy, e.g. joint-stereo, intensity-coding or matrixing
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/0208—Noise filtering
    • G10L21/0216—Noise filtering characterised by the method used for estimating noise
    • G10L21/0232—Processing in the frequency domain

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
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  • Mathematical Physics (AREA)
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Abstract

一种语音增强方法及装置，方法包括：根据带噪语音信号的功率谱以及噪声信号的功率谱，确定第一谱减参数(S201)；根据第一谱减参数以及参考功率谱确定第二谱减参数(S202)；根据噪声信号的功率谱和第二谱减参数对带噪语音信号进行谱减处理(S203)；其中，参考功率谱包括：用户语音预测功率谱和/或环境噪声预测功率。通过考虑到终端设备的用户语音功率谱特性和/或用户所处环境噪声功率谱特性的规律性，对第一谱减参数进行优化处理得到第二谱减参数，以便根据优化后的第二谱减参数对带噪语音信号进行谱减处理，提高了去噪后的语音信号的可懂度和自然度，从而提高了降噪性能。

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PCT国内申请，说明书已公开。

Claims (24)

  1. PCT国内申请，权利要求书已公开。
CN201880067882.XA 2017-12-18 2018-01-18 语音增强方法及装置 Active CN111226277B (zh)

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CN201711368189 2017-12-18
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CN111986693A (zh) * 2020-08-10 2020-11-24 北京小米松果电子有限公司 音频信号的处理方法及装置、终端设备和存储介质
CN113793620A (zh) * 2021-11-17 2021-12-14 深圳市北科瑞声科技股份有限公司 基于场景分类的语音降噪方法、装置、设备及存储介质
CN116705013A (zh) * 2023-07-28 2023-09-05 腾讯科技（深圳）有限公司 语音唤醒词的检测方法、装置、存储介质和电子设备

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111986693A (zh) * 2020-08-10 2020-11-24 北京小米松果电子有限公司 音频信号的处理方法及装置、终端设备和存储介质
CN113793620A (zh) * 2021-11-17 2021-12-14 深圳市北科瑞声科技股份有限公司 基于场景分类的语音降噪方法、装置、设备及存储介质
CN113793620B (zh) * 2021-11-17 2022-03-08 深圳市北科瑞声科技股份有限公司 基于场景分类的语音降噪方法、装置、设备及存储介质
CN116705013A (zh) * 2023-07-28 2023-09-05 腾讯科技（深圳）有限公司 语音唤醒词的检测方法、装置、存储介质和电子设备
CN116705013B (zh) * 2023-07-28 2023-10-10 腾讯科技（深圳）有限公司 语音唤醒词的检测方法、装置、存储介质和电子设备

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CN111226277B (zh) 2022-12-27
US20200279573A1 (en) 2020-09-03
WO2019119593A1 (zh) 2019-06-27

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