TW376611B - Transmission system with improved speech encoder - Google Patents

Transmission system with improved speech encoder

Info

Publication number
TW376611B
TW376611B TW087108479A TW87108479A TW376611B TW 376611 B TW376611 B TW 376611B TW 087108479 A TW087108479 A TW 087108479A TW 87108479 A TW87108479 A TW 87108479A TW 376611 B TW376611 B TW 376611B
Authority
TW
Taiwan
Prior art keywords
speech
background noise
encoder
speech signal
decoder
Prior art date
Application number
TW087108479A
Other languages
English (en)
Inventor
Robert Johannes Sluijter
Taori Rakesh
Original Assignee
Koninkl Philips Electronics Nv
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Koninkl Philips Electronics Nv filed Critical Koninkl Philips Electronics Nv
Application granted granted Critical
Publication of TW376611B publication Critical patent/TW376611B/zh

Links

Classifications

    • 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
    • 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
    • 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
    • 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
    • G10L19/16—Vocoder architecture
    • G10L19/18—Vocoders using multiple modes
    • G10L19/22—Mode decision, i.e. based on audio signal content versus external parameters

Landscapes

  • Engineering & Computer Science (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Quality & Reliability (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
TW087108479A 1998-05-26 1998-05-29 Transmission system with improved speech encoder TW376611B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP98201734 1998-05-26

Publications (1)

Publication Number Publication Date
TW376611B true TW376611B (en) 1999-12-11

Family

ID=8233759

Family Applications (1)

Application Number Title Priority Date Filing Date
TW087108479A TW376611B (en) 1998-05-26 1998-05-29 Transmission system with improved speech encoder

Country Status (8)

Country Link
US (2) US6363340B1 (zh)
EP (1) EP0998741B1 (zh)
JP (1) JP2002517022A (zh)
KR (2) KR100713677B1 (zh)
CN (1) CN1143265C (zh)
DE (1) DE69932575T2 (zh)
TW (1) TW376611B (zh)
WO (1) WO1999062057A2 (zh)

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US7701886B2 (en) * 2004-05-28 2010-04-20 Alcatel-Lucent Usa Inc. Packet loss concealment based on statistical n-gram predictive models for use in voice-over-IP speech transmission
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AU2015200065B2 (en) * 2010-07-02 2016-10-20 Dolby International Ab Post filter, decoder system and method of decoding
AU2016202478B2 (en) * 2010-07-02 2016-06-16 Dolby International Ab Pitch filter for audio signals and method for filtering an audio signal with a pitch filter
CN105244035B (zh) 2010-07-02 2019-03-12 杜比国际公司 选择性低音后置滤波器
AU2016204672B2 (en) * 2010-07-02 2016-08-18 Dolby International Ab Audio encoder and decoder with multiple coding modes
JP5552988B2 (ja) * 2010-09-27 2014-07-16 富士通株式会社 音声帯域拡張装置および音声帯域拡張方法
KR102138320B1 (ko) 2011-10-28 2020-08-11 한국전자통신연구원 통신 시스템에서 신호 코덱 장치 및 방법
US9576590B2 (en) * 2012-02-24 2017-02-21 Nokia Technologies Oy Noise adaptive post filtering
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CN113206773B (zh) * 2014-12-23 2024-01-12 杜比实验室特许公司 与语音质量估计相关的改进方法和设备
CN106033672B (zh) 2015-03-09 2021-04-09 华为技术有限公司 确定声道间时间差参数的方法和装置
CN108028723B (zh) * 2016-09-07 2021-03-16 深圳前海达闼云端智能科技有限公司 一种VoLTE通信语音编码调整的方法和服务基站
CN106782504B (zh) * 2016-12-29 2019-01-22 百度在线网络技术（北京）有限公司 语音识别方法和装置
US11181396B2 (en) * 2018-04-10 2021-11-23 Hemy8 Sa Noise-resistant intermittently operating incremental position sensor
CN115428069A (zh) 2020-04-24 2022-12-02 瑞典爱立信有限公司 低音后置滤波器的低成本适配

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US8554550B2 (en) 2008-01-28 2013-10-08 Qualcomm Incorporated Systems, methods, and apparatus for context processing using multi resolution analysis
US8554551B2 (en) 2008-01-28 2013-10-08 Qualcomm Incorporated Systems, methods, and apparatus for context replacement by audio level
US8560307B2 (en) 2008-01-28 2013-10-15 Qualcomm Incorporated Systems, methods, and apparatus for context suppression using receivers
US8600740B2 (en) 2008-01-28 2013-12-03 Qualcomm Incorporated Systems, methods and apparatus for context descriptor transmission

Also Published As

Publication number Publication date
DE69932575D1 (de) 2006-09-14
KR100643116B1 (ko) 2006-11-10
KR20060053018A (ko) 2006-05-19
EP0998741B1 (en) 2006-08-02
WO1999062057A3 (en) 2000-01-27
US6363340B1 (en) 2002-03-26
CN1273663A (zh) 2000-11-15
DE69932575T2 (de) 2007-08-02
US6985855B2 (en) 2006-01-10
KR20010022187A (ko) 2001-03-15
JP2002517022A (ja) 2002-06-11
CN1143265C (zh) 2004-03-24
EP0998741A2 (en) 2000-05-10
US20020123885A1 (en) 2002-09-05
KR100713677B1 (ko) 2007-05-02
WO1999062057A2 (en) 1999-12-02

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