BRPI0820463A2 - Método e aparelho para ectensão de largura de banda de sinal de áudio - Google Patents

Método e aparelho para ectensão de largura de banda de sinal de áudio

Info

Publication number
BRPI0820463A2
BRPI0820463A2 BRPI0820463-2A BRPI0820463A BRPI0820463A2 BR PI0820463 A2 BRPI0820463 A2 BR PI0820463A2 BR PI0820463 A BRPI0820463 A BR PI0820463A BR PI0820463 A2 BRPI0820463 A2 BR PI0820463A2
Authority
BR
Brazil
Prior art keywords
audio signal
signal bandwidth
bandwidth extension
extension
audio
Prior art date
Application number
BRPI0820463-2A
Other languages
English (en)
Inventor
Tenkasi V Ramabadran
Mark A Jasiuk
Original Assignee
Motorola Inc
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 Motorola Inc filed Critical Motorola Inc
Publication of BRPI0820463A2 publication Critical patent/BRPI0820463A2/pt
Publication of BRPI0820463A8 publication Critical patent/BRPI0820463A8/pt
Publication of BRPI0820463B1 publication Critical patent/BRPI0820463B1/pt

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
    • G10L19/06—Determination or coding of the spectral characteristics, e.g. of the short-term prediction coefficients
    • 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
    • G10L21/038—Speech enhancement, e.g. noise reduction or echo cancellation using band spreading 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
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Computational Linguistics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Quality & Reliability (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
BRPI0820463-2A 2007-11-29 2008-10-09 Método e aparelho para extensão de largura de banda de sinal de áudio BRPI0820463B1 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US11/946,978 2007-11-29
US11/946,978 US8688441B2 (en) 2007-11-29 2007-11-29 Method and apparatus to facilitate provision and use of an energy value to determine a spectral envelope shape for out-of-signal bandwidth content
PCT/US2008/079366 WO2009070387A1 (en) 2007-11-29 2008-10-09 Method and apparatus for bandwidth extension of audio signal

Publications (3)

Publication Number Publication Date
BRPI0820463A2 true BRPI0820463A2 (pt) 2015-06-16
BRPI0820463A8 BRPI0820463A8 (pt) 2015-11-03
BRPI0820463B1 BRPI0820463B1 (pt) 2019-03-06

Family

ID=40149754

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0820463-2A BRPI0820463B1 (pt) 2007-11-29 2008-10-09 Método e aparelho para extensão de largura de banda de sinal de áudio

Country Status (8)

Country Link
US (1) US8688441B2 (pt)
EP (1) EP2232223B1 (pt)
KR (2) KR20100086018A (pt)
CN (2) CN101878416B (pt)
BR (1) BRPI0820463B1 (pt)
MX (1) MX2010005679A (pt)
RU (1) RU2447415C2 (pt)
WO (1) WO2009070387A1 (pt)

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CN106997767A (zh) * 2017-03-24 2017-08-01 百度在线网络技术（北京）有限公司 基于人工智能的语音处理方法及装置
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CN107863095A (zh) 2017-11-21 2018-03-30 广州酷狗计算机科技有限公司 音频信号处理方法、装置和存储介质
CN108156561B (zh) 2017-12-26 2020-08-04 广州酷狗计算机科技有限公司 音频信号的处理方法、装置及终端
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CN109036457B (zh) 2018-09-10 2021-10-08 广州酷狗计算机科技有限公司 恢复音频信号的方法和装置
CN112259117B (zh) * 2020-09-28 2024-05-14 上海声瀚信息科技有限公司 一种目标声源锁定和提取的方法
CN114970117B (zh) * 2022-05-07 2025-04-08 成都理工大学 一种用于抑制端点效应的端点延拓方法
CN115148217B (zh) * 2022-06-15 2024-07-09 腾讯科技（深圳）有限公司 音频处理方法、装置、电子设备、存储介质及程序产品

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Also Published As

Publication number Publication date
CN101878416A (zh) 2010-11-03
MX2010005679A (es) 2010-06-02
BRPI0820463A8 (pt) 2015-11-03
US20090144062A1 (en) 2009-06-04
RU2447415C2 (ru) 2012-04-10
CN102646419B (zh) 2015-04-22
CN101878416B (zh) 2012-06-06
EP2232223B1 (en) 2016-06-15
KR20120055746A (ko) 2012-05-31
KR20100086018A (ko) 2010-07-29
RU2010126497A (ru) 2012-01-10
US8688441B2 (en) 2014-04-01
WO2009070387A1 (en) 2009-06-04
BRPI0820463B1 (pt) 2019-03-06
CN102646419A (zh) 2012-08-22
KR101482830B1 (ko) 2015-01-15
EP2232223A1 (en) 2010-09-29

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Legal Events

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B25D Requested change of name of applicant approved

Owner name: MOTOROLA SOLUTIONS, INC (US)

B25A Requested transfer of rights approved

Owner name: MOTOROLA MOBILITY INC (US)

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