ES2142544T3 - Tonalidad para compresion de audio perceptiva basada sobre la incertidumbre del volumen sonoro. - Google Patents

Tonalidad para compresion de audio perceptiva basada sobre la incertidumbre del volumen sonoro.

Info

Publication number
ES2142544T3
ES2142544T3 ES96300706T ES96300706T ES2142544T3 ES 2142544 T3 ES2142544 T3 ES 2142544T3 ES 96300706 T ES96300706 T ES 96300706T ES 96300706 T ES96300706 T ES 96300706T ES 2142544 T3 ES2142544 T3 ES 2142544T3
Authority
ES
Spain
Prior art keywords
audio signal
uncertainty
tone
noise masking
sound volume
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
ES96300706T
Other languages
English (en)
Inventor
Jonathan Brandon Allen
James David Johnston
Sean Matthew Dorward
Mark R Sydorenko
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AT&T Corp
Original Assignee
AT&T Corp
AT&T IPM Corp
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 AT&T Corp, AT&T IPM Corp filed Critical AT&T Corp
Application granted granted Critical
Publication of ES2142544T3 publication Critical patent/ES2142544T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/66—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission
    • H04B1/665—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission using psychoacoustic properties of the ear, e.g. masking effect

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)

Abstract

SE PRESENTA UNA NUEVA TECNICA PARA LA DETERMINACION DEL EFECTO DE ENMASCARAMIENTO DE UNA SEÑAL DE AUDIO QUE SE EMPLEA PARA SUMINISTRAR UNA COMPRESION TRANSPARENTE EN UNA SEÑAL DE AUDIO A VELOCIDAD DE BITS GRATAMENTE REDUCIDAS. LA NUEVA TECNICA EMPLEA LOS RESULTADOS DE LAS RECIENTES INVESTIGACIONES DE LA PSICOFISICA DEL ENMASCARAMIENTO DEL RUIDO EN EL SISTEMA AUDITIVO HUMANO. LAS INVESTIGACIONES SUGIEREN QUE EL ENMASCARAMIENTO DEL RUIDO ES UNA FUNCION DE LA FLUCTUACION EN LA SONORIDAD SEGUN ES PERCIBIDA POR EL CEREBRO. SE EMPLEAN MEDICIONES DE LA FLUCTUACION DE LA SONORIDAD PARA FORMAR UMBRALES DE ENMASCARAMIENTO DEL RUIDO PARA SU USO EN LA COMPRESION DE SEÑALES DE AUDIO. ESTAS MEDICIONES SE EMPLEAN EN UN MARCO DE TRABAJO DE ANALISIS POR SINTESIS, DE SUB-BANDA ILUSTRATIVA. DE ACUERDO CON LA REALIZACION ILUSTRATIVA, SE REALIZAN CODIFICACIONES PROVISIONALES DE LA SEÑAL DE AUDIO PARA DETERMINAR LA CODIFICACION QUE CONSIGUE UN DIFERENCIAL DE SONORIDAD, ENTRE LA SEÑAL DE AUDIO ORIGINAL Y CODIFICADA, QUE SEA MENOR QUE (PERO NO MUCHO MENOR) LA FLUCTUACION DE LA SONORIDAD.
ES96300706T 1995-02-06 1996-01-31 Tonalidad para compresion de audio perceptiva basada sobre la incertidumbre del volumen sonoro. Expired - Lifetime ES2142544T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/384,097 US5699479A (en) 1995-02-06 1995-02-06 Tonality for perceptual audio compression based on loudness uncertainty

Publications (1)

Publication Number Publication Date
ES2142544T3 true ES2142544T3 (es) 2000-04-16

Family

ID=23516025

Family Applications (1)

Application Number Title Priority Date Filing Date
ES96300706T Expired - Lifetime ES2142544T3 (es) 1995-02-06 1996-01-31 Tonalidad para compresion de audio perceptiva basada sobre la incertidumbre del volumen sonoro.

Country Status (6)

Country Link
US (1) US5699479A (es)
EP (1) EP0740428B1 (es)
JP (1) JPH08272400A (es)
CA (1) CA2167966A1 (es)
DE (1) DE69602801T2 (es)
ES (1) ES2142544T3 (es)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19505435C1 (de) * 1995-02-17 1995-12-07 Fraunhofer Ges Forschung Verfahren und Vorrichtung zum Bestimmen der Tonalität eines Audiosignals
JP3925993B2 (ja) * 1997-08-29 2007-06-06 パイオニア株式会社 信号処理装置
US6466912B1 (en) 1997-09-25 2002-10-15 At&T Corp. Perceptual coding of audio signals employing envelope uncertainty
US5945932A (en) * 1997-10-30 1999-08-31 Audiotrack Corporation Technique for embedding a code in an audio signal and for detecting the embedded code
US6091773A (en) * 1997-11-12 2000-07-18 Sydorenko; Mark R. Data compression method and apparatus
JP3739959B2 (ja) * 1999-03-23 2006-01-25 株式会社リコー デジタル音響信号符号化装置、デジタル音響信号符号化方法及びデジタル音響信号符号化プログラムを記録した媒体
US6246978B1 (en) * 1999-05-18 2001-06-12 Mci Worldcom, Inc. Method and system for measurement of speech distortion from samples of telephonic voice signals
JP3762579B2 (ja) * 1999-08-05 2006-04-05 株式会社リコー デジタル音響信号符号化装置、デジタル音響信号符号化方法及びデジタル音響信号符号化プログラムを記録した媒体
JP2003280691A (ja) * 2002-03-19 2003-10-02 Sanyo Electric Co Ltd 音声処理方法および音声処理装置
US20040049484A1 (en) * 2002-09-11 2004-03-11 Hamano Life Science Research Foundation Method and apparatus for separating and extracting information on physiological functions
US7333930B2 (en) * 2003-03-14 2008-02-19 Agere Systems Inc. Tonal analysis for perceptual audio coding using a compressed spectral representation
US6980933B2 (en) * 2004-01-27 2005-12-27 Dolby Laboratories Licensing Corporation Coding techniques using estimated spectral magnitude and phase derived from MDCT coefficients
CN101107650B (zh) * 2005-01-14 2012-03-28 松下电器产业株式会社 语音切换装置及语音切换方法
US8103007B2 (en) * 2005-12-28 2012-01-24 Honeywell International Inc. System and method of detecting speech intelligibility of audio announcement systems in noisy and reverberant spaces
US8098833B2 (en) * 2005-12-28 2012-01-17 Honeywell International Inc. System and method for dynamic modification of speech intelligibility scoring
US20080004873A1 (en) * 2006-06-28 2008-01-03 Chi-Min Liu Perceptual coding of audio signals by spectrum uncertainty
US7870136B1 (en) * 2007-05-24 2011-01-11 Hewlett-Packard Development Company, L.P. Clustering data with constraints
US20090006081A1 (en) * 2007-06-27 2009-01-01 Samsung Electronics Co., Ltd. Method, medium and apparatus for encoding and/or decoding signal
WO2009157280A1 (ja) * 2008-06-26 2009-12-30 独立行政法人科学技術振興機構 オーディオ信号圧縮装置、オーディオ信号圧縮方法、オーディオ信号復号装置及びオーディオ信号復号方法
EP2374211B1 (en) 2008-12-24 2012-04-04 Dolby Laboratories Licensing Corporation Audio signal loudness determination and modification in the frequency domain
US8223985B2 (en) * 2009-04-22 2012-07-17 General Electric Company Masking of pure tones within sound from a noise generating source
JP4992989B2 (ja) * 2010-02-02 2012-08-08 株式会社デンソー 擬似エンジン音発生装置
US8509450B2 (en) * 2010-08-23 2013-08-13 Cambridge Silicon Radio Limited Dynamic audibility enhancement
JP2012226106A (ja) * 2011-04-19 2012-11-15 Sony Corp 楽曲区間検出装置および方法、プログラム、記録媒体、並びに楽曲信号検出装置
EP2879131A1 (en) 2013-11-27 2015-06-03 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Decoder, encoder and method for informed loudness estimation in object-based audio coding systems
US10522169B2 (en) * 2016-09-23 2019-12-31 Trustees Of The California State University Classification of teaching based upon sound amplitude
CN113470692B (zh) * 2020-03-31 2024-02-02 抖音视界有限公司 音频处理方法、装置、可读介质及电子设备
CN119811405B (zh) * 2025-01-08 2025-12-05 天津大学 一种基于双向门控神经网络及参考噪声的语音增强方法
CN121438857B (zh) * 2025-12-29 2026-04-17 科大讯飞股份有限公司 同声传译的延迟消除方法、装置、设备、介质和程序产品

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5341457A (en) * 1988-12-30 1994-08-23 At&T Bell Laboratories Perceptual coding of audio signals
US5185800A (en) * 1989-10-13 1993-02-09 Centre National D'etudes Des Telecommunications Bit allocation device for transformed digital audio broadcasting signals with adaptive quantization based on psychoauditive criterion
US5040217A (en) * 1989-10-18 1991-08-13 At&T Bell Laboratories Perceptual coding of audio signals
EP0446037B1 (en) * 1990-03-09 1997-10-08 AT&T Corp. Hybrid perceptual audio coding
JP3134337B2 (ja) * 1991-03-30 2001-02-13 ソニー株式会社 ディジタル信号符号化方法
US5227788A (en) * 1992-03-02 1993-07-13 At&T Bell Laboratories Method and apparatus for two-component signal compression
US5285498A (en) * 1992-03-02 1994-02-08 At&T Bell Laboratories Method and apparatus for coding audio signals based on perceptual model
US5537510A (en) * 1994-12-30 1996-07-16 Daewoo Electronics Co., Ltd. Adaptive digital audio encoding apparatus and a bit allocation method thereof

Also Published As

Publication number Publication date
DE69602801D1 (de) 1999-07-15
CA2167966A1 (en) 1996-08-07
EP0740428B1 (en) 1999-06-09
DE69602801T2 (de) 1999-11-11
JPH08272400A (ja) 1996-10-18
EP0740428A1 (en) 1996-10-30
US5699479A (en) 1997-12-16

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