CN110462733A - 多声道信号的编解码方法和编解码器 - Google Patents

多声道信号的编解码方法和编解码器 Download PDF

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CN110462733A
CN110462733A CN201880022744.XA CN201880022744A CN110462733A CN 110462733 A CN110462733 A CN 110462733A CN 201880022744 A CN201880022744 A CN 201880022744A CN 110462733 A CN110462733 A CN 110462733A
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attenuation factor
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CN110462733B (zh
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刘泽新
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
    • 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
    • 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
    • G10L19/02—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 using spectral analysis, e.g. transform vocoders or subband vocoders
    • G10L19/0204—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 using spectral analysis, e.g. transform vocoders or subband vocoders using subband decomposition
    • 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
    • G10L19/02—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 using spectral analysis, e.g. transform vocoders or subband vocoders
    • G10L19/032—Quantisation or dequantisation of spectral components
    • 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
    • G10L19/04—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 using predictive techniques
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S1/00—Two-channel systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S5/00—Pseudo-stereo systems, e.g. in which additional channel signals are derived from monophonic signals by means of phase shifting, time delay or reverberation 

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Abstract

一种多声道信号的编解码方法和编解码器，该编码方法包括：确定多声道信号中的第一声道信号和第二声道信号的下混信号以及第一声道信号和第二声道信号的初始混响增益参数；根据第一声道信号、第二声道信号分别与下混信号的相关性，以及初始混响增益参数，确定第一声道信号和第二声道信号的目标混响增益参数；根据下混信号和目标混响增益参数，对第一声道信号和第二声道信号进行量化，并将量化后的第一声道信号和第二声道信号写入码流。该编解码方法和编解码器能够提高混响处理后得到的声道信号的质量。

Description

PCT国内申请，说明书已公开。

Claims (40)

  1. PCT国内申请，权利要求书已公开。
CN201880022744.XA 2017-03-31 2018-03-01 多声道信号的编解码方法和编解码器 Active CN110462733B (zh)

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CN108665902B (zh) 2017-03-31 2020-12-01 华为技术有限公司 多声道信号的编解码方法和编解码器
CN108694955B (zh) 2017-04-12 2020-11-17 华为技术有限公司 多声道信号的编解码方法和编解码器
CN113985780B (zh) * 2021-10-28 2024-01-12 中国人民解放军战略支援部队信息工程大学 多通道远程控制装置及方法、存储介质及电子设备

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JP2024059683A (ja) 2024-05-01
EP3917171A1 (en) 2021-12-01
JP6804666B2 (ja) 2020-12-23
US20220310104A1 (en) 2022-09-29
EP4375994A3 (en) 2024-07-17
ES2882626T3 (es) 2021-12-02
EP3588497A1 (en) 2020-01-01
JP7035154B2 (ja) 2022-03-14
JP7436541B2 (ja) 2024-02-21
CN108665902A (zh) 2018-10-16
EP3588497B1 (en) 2021-05-12
KR20190122839A (ko) 2019-10-30
US11386907B2 (en) 2022-07-12
WO2018177066A1 (zh) 2018-10-04
KR102281097B1 (ko) 2021-07-22
EP3917171B1 (en) 2024-04-24
EP3588497A4 (en) 2020-01-15
JP2020512590A (ja) 2020-04-23
US20240135938A1 (en) 2024-04-25
EP4375994A2 (en) 2024-05-29
CN108665902B (zh) 2020-12-01
US20200027466A1 (en) 2020-01-23
JP2021047432A (ja) 2021-03-25
US11894001B2 (en) 2024-02-06

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