CA2780962C - Methods and arrangements for loudness and sharpness compensation in audio codecs - Google Patents

Methods and arrangements for loudness and sharpness compensation in audio codecs Download PDF

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Publication number
CA2780962C
CA2780962C CA2780962A CA2780962A CA2780962C CA 2780962 C CA2780962 C CA 2780962C CA 2780962 A CA2780962 A CA 2780962A CA 2780962 A CA2780962 A CA 2780962A CA 2780962 C CA2780962 C CA 2780962C
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Canada
Prior art keywords
signal
bandwidth
signal portion
cndot
speech signal
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CA2780962A
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English (en)
French (fr)
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CA2780962A1 (en
Inventor
Volodya Grancharov
Sigurdur Sverrisson
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Telefonaktiebolaget LM Ericsson AB
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Telefonaktiebolaget LM Ericsson AB
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Publication of CA2780962A1 publication Critical patent/CA2780962A1/en
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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
    • 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
    • G10L19/04—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
    • G10L19/26—Pre-filtering or post-filtering
    • G10L19/265—Pre-filtering, e.g. high frequency emphasis prior to encoding

Landscapes

  • Engineering & Computer Science (AREA)
  • Computational Linguistics (AREA)
  • Quality & Reliability (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)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
CA2780962A 2009-11-19 2010-06-29 Methods and arrangements for loudness and sharpness compensation in audio codecs Active CA2780962C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US26271409P 2009-11-19 2009-11-19
US61/262,714 2009-11-19
PCT/SE2010/050746 WO2011062535A1 (en) 2009-11-19 2010-06-29 Methods and arrangements for loudness and sharpness compensation in audio codecs

Publications (2)

Publication Number Publication Date
CA2780962A1 CA2780962A1 (en) 2011-05-26
CA2780962C true CA2780962C (en) 2017-09-05

Family

ID=44059833

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2780962A Active CA2780962C (en) 2009-11-19 2010-06-29 Methods and arrangements for loudness and sharpness compensation in audio codecs

Country Status (7)

Country Link
US (1) US9031835B2 (https=)
EP (1) EP2502229B1 (https=)
JP (1) JP5812998B2 (https=)
CN (1) CN102725791B (https=)
CA (1) CA2780962C (https=)
ES (1) ES2645415T3 (https=)
WO (1) WO2011062535A1 (https=)

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GB201210373D0 (en) * 2012-06-12 2012-07-25 Meridian Audio Ltd Doubly compatible lossless audio sandwidth extension
EP2704142B1 (en) * 2012-08-27 2015-09-02 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for reproducing an audio signal, apparatus and method for generating a coded audio signal, computer program and coded audio signal
US9711156B2 (en) 2013-02-08 2017-07-18 Qualcomm Incorporated Systems and methods of performing filtering for gain determination
US9620134B2 (en) 2013-10-10 2017-04-11 Qualcomm Incorporated Gain shape estimation for improved tracking of high-band temporal characteristics
US10083708B2 (en) 2013-10-11 2018-09-25 Qualcomm Incorporated Estimation of mixing factors to generate high-band excitation signal
US10614816B2 (en) 2013-10-11 2020-04-07 Qualcomm Incorporated Systems and methods of communicating redundant frame information
US9384746B2 (en) 2013-10-14 2016-07-05 Qualcomm Incorporated Systems and methods of energy-scaled signal processing
US10163447B2 (en) 2013-12-16 2018-12-25 Qualcomm Incorporated High-band signal modeling
PL3084763T3 (pl) 2013-12-19 2019-03-29 Telefonaktiebolaget Lm Ericsson (Publ) Szacowanie szumów tła w sygnałach audio
EP3518236B8 (en) * 2014-10-10 2022-05-25 Dolby Laboratories Licensing Corporation Transmission-agnostic presentation-based program loudness
US9590580B1 (en) 2015-09-13 2017-03-07 Guoguang Electric Company Limited Loudness-based audio-signal compensation
US11925433B2 (en) * 2020-07-17 2024-03-12 Daniel Hertz S.A. System and method for improving and adjusting PMC digital signals to provide health benefits to listeners
CN119520569A (zh) * 2024-12-04 2025-02-25 中国工商银行股份有限公司 用于电力信息通信网络的信号处理方法、装置和设备

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SE512719C2 (sv) * 1997-06-10 2000-05-02 Lars Gustaf Liljeryd En metod och anordning för reduktion av dataflöde baserad på harmonisk bandbreddsexpansion
US6889182B2 (en) * 2001-01-12 2005-05-03 Telefonaktiebolaget L M Ericsson (Publ) Speech bandwidth extension
CA2388352A1 (en) * 2002-05-31 2003-11-30 Voiceage Corporation A method and device for frequency-selective pitch enhancement of synthesized speed
CA2388439A1 (en) * 2002-05-31 2003-11-30 Voiceage Corporation A method and device for efficient frame erasure concealment in linear predictive based speech codecs
JP2005010621A (ja) 2003-06-20 2005-01-13 Matsushita Electric Ind Co Ltd 音声帯域拡張装置及び帯域拡張方法
US7676362B2 (en) 2004-12-31 2010-03-09 Motorola, Inc. Method and apparatus for enhancing loudness of a speech signal
US7813931B2 (en) * 2005-04-20 2010-10-12 QNX Software Systems, Co. System for improving speech quality and intelligibility with bandwidth compression/expansion
KR101171098B1 (ko) * 2005-07-22 2012-08-20 삼성전자주식회사 혼합 구조의 스케일러블 음성 부호화 방법 및 장치
CA2558595C (en) * 2005-09-02 2015-05-26 Nortel Networks Limited Method and apparatus for extending the bandwidth of a speech signal
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JP4747835B2 (ja) 2005-12-27 2011-08-17 ヤマハ株式会社 オーディオ再生の効果付加方法およびその装置
KR101366124B1 (ko) * 2006-02-14 2014-02-21 오렌지 오디오 인코딩/디코딩에서의 인지 가중 장치
TW200743382A (en) 2006-05-03 2007-11-16 Cybervision Inc Video signal generator
JP4918841B2 (ja) 2006-10-23 2012-04-18 富士通株式会社 符号化システム
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US8433582B2 (en) * 2008-02-01 2013-04-30 Motorola Mobility Llc Method and apparatus for estimating high-band energy in a bandwidth extension system
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JP4783412B2 (ja) 2008-09-09 2011-09-28 日本電信電話株式会社 信号広帯域化装置、信号広帯域化方法、そのプログラム、その記録媒体

Also Published As

Publication number Publication date
US20120221326A1 (en) 2012-08-30
WO2011062535A1 (en) 2011-05-26
CN102725791B (zh) 2014-09-17
ES2645415T3 (es) 2017-12-05
CN102725791A (zh) 2012-10-10
EP2502229A4 (en) 2013-06-19
EP2502229B1 (en) 2017-08-09
EP2502229A1 (en) 2012-09-26
JP5812998B2 (ja) 2015-11-17
JP2013511741A (ja) 2013-04-04
US9031835B2 (en) 2015-05-12
CA2780962A1 (en) 2011-05-26

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