MX2007003063A - Codificacion combinada de audio que minimiza la distorsion perceptual. - Google Patents

Codificacion combinada de audio que minimiza la distorsion perceptual.

Info

Publication number
MX2007003063A
MX2007003063A MX2007003063A MX2007003063A MX2007003063A MX 2007003063 A MX2007003063 A MX 2007003063A MX 2007003063 A MX2007003063 A MX 2007003063A MX 2007003063 A MX2007003063 A MX 2007003063A MX 2007003063 A MX2007003063 A MX 2007003063A
Authority
MX
Mexico
Prior art keywords
audio
encoder
encoders
encoding
distortion
Prior art date
Application number
MX2007003063A
Other languages
English (en)
Inventor
Steven L J D E Van De Par
Nicolle H Van Schijndel
Valery S Kot
Richard Heusdens
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
Publication of MX2007003063A publication Critical patent/MX2007003063A/es

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
    • G10L19/16—Vocoder architecture
    • G10L19/18—Vocoders using multiple modes
    • 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
    • G10L19/002—Dynamic bit allocation
    • 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
    • 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction

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)
  • Theoretical Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Abstract

Un codificador de audio en el cual dos o mas codificadores preferiblemente diferentes cooperan para generar una senal codificada de audio de union. Los parametros de codificacion de los dos o mas codificadores son optimizados en respuesta a la medicion de la distorsion de la senal codificada de audio de union de acuerdo con un criterio predeterminado. De preferencia, la medicion de la distorsion es una medicion de distorsion perceptual. En una modalidad de un codificador que comprende un codificador sinusoidal y un codificador de forma de onda, la velocidad total constante de bits para cada cuadro de audio es distribuida entre los dos codificadores para asi minimizar la distorsion perceptual para ambos del primer y del segundo codificadores. Otras modalidades consideran un conjunto de parametros de codificacion, el cual es mas grande que solo aquellos que minimizan la distorsion perceptual del primer codificador. En algunas modalidades, la distorsion perceptual podria ser minimizada mediante la optimizacion de la codificacion por medio de la optimizacion total de los modelos de codificacion, es decir, un conjunto complejo de parametros de codificacion para los codificadores separados. Los codificadores separados podrian estar en cascada o podrian funcionar en paralelo o en una combinacion de estos. De preferencia, dos o mas segmentos de audio son tomados en cuenta en el procedimiento de optimizacion. Un decodificador de audio correspondiente comprende decodificadores separados que corresponden con los codificadores separados del codificador de audio que cifro la senal de audio. Las partes de senal decodificada de estos decodificadores son entonces agregadas a fin de producir la senal final de audio. La codificacion presentada de audio es eficiente y proporciona una alta calidad de sonido debido a que el esquema de codificacion es flexible y se adapta a las demandas especificas para cada extracto de audio.
MX2007003063A 2004-09-17 2005-09-02 Codificacion combinada de audio que minimiza la distorsion perceptual. MX2007003063A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP04104514 2004-09-17
PCT/IB2005/052879 WO2006030340A2 (en) 2004-09-17 2005-09-02 Combined audio coding minimizing perceptual distortion

Publications (1)

Publication Number Publication Date
MX2007003063A true MX2007003063A (es) 2007-05-16

Family

ID=35207750

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2007003063A MX2007003063A (es) 2004-09-17 2005-09-02 Codificacion combinada de audio que minimiza la distorsion perceptual.

Country Status (9)

Country Link
US (1) US7788090B2 (es)
EP (1) EP1792306B1 (es)
JP (1) JP5154934B2 (es)
KR (1) KR101407429B1 (es)
CN (1) CN101124626B (es)
BR (1) BRPI0515343A8 (es)
MX (1) MX2007003063A (es)
RU (1) RU2393552C2 (es)
WO (1) WO2006030340A2 (es)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2420816C2 (ru) * 2006-02-24 2011-06-10 Франс Телеком Способ двоичного кодирования показателей квантования огибающей сигнала, способ декодирования огибающей сигнала и соответствующие модули кодирования и декодирования
KR100788706B1 (ko) * 2006-11-28 2007-12-26 삼성전자주식회사 광대역 음성 신호의 부호화/복호화 방법
KR101149448B1 (ko) * 2007-02-12 2012-05-25 삼성전자주식회사 오디오 부호화 및 복호화 장치와 그 방법
KR101149449B1 (ko) * 2007-03-20 2012-05-25 삼성전자주식회사 오디오 신호의 인코딩 방법 및 장치, 그리고 오디오 신호의디코딩 방법 및 장치
ES2663269T3 (es) 2007-06-11 2018-04-11 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Codificador de audio para codificar una señal de audio que tiene una porción similar a un impulso y una porción estacionaria
KR101346771B1 (ko) * 2007-08-16 2013-12-31 삼성전자주식회사 심리 음향 모델에 따른 마스킹 값보다 작은 정현파 신호를효율적으로 인코딩하는 방법 및 장치, 그리고 인코딩된오디오 신호를 디코딩하는 방법 및 장치
WO2009047675A2 (en) * 2007-10-10 2009-04-16 Koninklijke Philips Electronics N.V. Encoding and decoding of an audio signal
JP5308519B2 (ja) * 2008-06-24 2013-10-09 テレフオンアクチーボラゲット エル エム エリクソン（パブル） 改善されたオーディオ符号化のマルチモード方式
US8204744B2 (en) 2008-12-01 2012-06-19 Research In Motion Limited Optimization of MP3 audio encoding by scale factors and global quantization step size
BR122019023877B1 (pt) 2009-03-17 2021-08-17 Dolby International Ab Sistema codificador, sistema decodificador, método para codificar um sinal estéreo para um sinal de fluxo de bits e método para decodificar um sinal de fluxo de bits para um sinal estéreo
GB0915766D0 (en) * 2009-09-09 2009-10-07 Apt Licensing Ltd Apparatus and method for multidimensional adaptive audio coding
US8423355B2 (en) * 2010-03-05 2013-04-16 Motorola Mobility Llc Encoder for audio signal including generic audio and speech frames
RU2445719C2 (ru) * 2010-04-21 2012-03-20 Государственное образовательное учреждение высшего профессионального образования Академия Федеральной службы охраны Российской Федерации (Академия ФСО России) Способ улучшения восприятия синтезированной речи при реализации процедуры анализа через синтез в вокодерах с линейным предсказанием
US10326978B2 (en) 2010-06-30 2019-06-18 Warner Bros. Entertainment Inc. Method and apparatus for generating virtual or augmented reality presentations with 3D audio positioning
US8755432B2 (en) 2010-06-30 2014-06-17 Warner Bros. Entertainment Inc. Method and apparatus for generating 3D audio positioning using dynamically optimized audio 3D space perception cues
US8917774B2 (en) * 2010-06-30 2014-12-23 Warner Bros. Entertainment Inc. Method and apparatus for generating encoded content using dynamically optimized conversion
US9591374B2 (en) 2010-06-30 2017-03-07 Warner Bros. Entertainment Inc. Method and apparatus for generating encoded content using dynamically optimized conversion for 3D movies
AR085217A1 (es) * 2011-02-14 2013-09-18 Fraunhofer Ges Forschung Aparato y metodo para codificar una porcion de una señal de audio utilizando deteccion de un transiente y resultado de calidad
US9549178B2 (en) 2012-12-26 2017-01-17 Verizon Patent And Licensing Inc. Segmenting and transcoding of video and/or audio data
BR112015018021B1 (pt) 2013-01-29 2022-10-11 Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E.V Aparelho e método para selecionar um dentre um primeiro algoritmo de codificação e um segundo algoritmo de codificação
CN110223702B (zh) 2013-05-24 2023-04-11 杜比国际公司 音频解码系统和重构方法
ES2769061T3 (es) * 2015-09-25 2020-06-24 Fraunhofer Ges Forschung Codificador y método para codificar una señal de audio con ruido de fondo reducido que utiliza codificación predictiva lineal
US11227615B2 (en) * 2017-09-08 2022-01-18 Sony Corporation Sound processing apparatus and sound processing method
TWI702780B (zh) 2019-12-03 2020-08-21 財團法人工業技術研究院 提升共模瞬變抗擾度的隔離器及訊號產生方法
CN111081264B (zh) * 2019-12-06 2022-03-29 北京明略软件系统有限公司 一种语音信号处理方法、装置、设备及存储介质

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4622680A (en) 1984-10-17 1986-11-11 General Electric Company Hybrid subband coder/decoder method and apparatus
IT1232084B (it) * 1989-05-03 1992-01-23 Cselt Centro Studi Lab Telecom Sistema di codifica per segnali audio a banda allargata
JPH0773249B2 (ja) * 1989-06-29 1995-08-02 富士通株式会社 音声符号化・復号化伝送方式
JPH0335300A (ja) * 1989-06-30 1991-02-15 Fujitsu Ltd 音声符号・復号化伝送方式
JP2549016B2 (ja) * 1990-10-22 1996-10-30 日本電信電話株式会社 ベクトル量子化法
BE1007617A3 (nl) * 1993-10-11 1995-08-22 Philips Electronics Nv Transmissiesysteem met gebruik van verschillende codeerprincipes.
KR970005131B1 (ko) * 1994-01-18 1997-04-12 대우전자 주식회사 인간의 청각특성에 적응적인 디지탈 오디오 부호화장치
CN1090409C (zh) * 1994-10-06 2002-09-04 皇家菲利浦电子有限公司 采用不同编码原理的传送系统
DE19549621B4 (de) * 1995-10-06 2004-07-01 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung zum Codieren von Audiosignalen
US5867814A (en) * 1995-11-17 1999-02-02 National Semiconductor Corporation Speech coder that utilizes correlation maximization to achieve fast excitation coding, and associated coding method
KR100251453B1 (ko) * 1997-08-26 2000-04-15 윤종용 고음질 오디오 부호화/복호화장치들 및 디지털다기능디스크
US6263312B1 (en) * 1997-10-03 2001-07-17 Alaris, Inc. Audio compression and decompression employing subband decomposition of residual signal and distortion reduction
DE19747132C2 (de) * 1997-10-24 2002-11-28 Fraunhofer Ges Forschung Verfahren und Vorrichtungen zum Codieren von Audiosignalen sowie Verfahren und Vorrichtungen zum Decodieren eines Bitstroms
US6161088A (en) * 1998-06-26 2000-12-12 Texas Instruments Incorporated Method and system for encoding a digital audio signal
US6691084B2 (en) * 1998-12-21 2004-02-10 Qualcomm Incorporated Multiple mode variable rate speech coding
US6691082B1 (en) 1999-08-03 2004-02-10 Lucent Technologies Inc Method and system for sub-band hybrid coding
FI109393B (fi) 2000-07-14 2002-07-15 Nokia Corp Menetelmä mediavirran enkoodaamiseksi skaalautuvasti, skaalautuva enkooderi ja päätelaite
AU2001284910B2 (en) * 2000-08-16 2007-03-22 Dolby Laboratories Licensing Corporation Modulating one or more parameters of an audio or video perceptual coding system in response to supplemental information
WO2003038813A1 (en) * 2001-11-02 2003-05-08 Matsushita Electric Industrial Co., Ltd. Audio encoding and decoding device
JP4272897B2 (ja) * 2002-01-30 2009-06-03 パナソニック株式会社 符号化装置、復号化装置およびその方法
KR100711989B1 (ko) 2002-03-12 2007-05-02 노키아 코포레이션 효율적으로 개선된 스케일러블 오디오 부호화
DE10328777A1 (de) * 2003-06-25 2005-01-27 Coding Technologies Ab Vorrichtung und Verfahren zum Codieren eines Audiosignals und Vorrichtung und Verfahren zum Decodieren eines codierten Audiosignals
KR20060131766A (ko) * 2003-12-01 2006-12-20 코닌클리케 필립스 일렉트로닉스 엔.브이. 오디오 코딩

Also Published As

Publication number Publication date
EP1792306A2 (en) 2007-06-06
BRPI0515343A (pt) 2008-07-22
EP1792306B1 (en) 2013-03-13
KR101407429B1 (ko) 2014-06-17
RU2393552C2 (ru) 2010-06-27
KR20070061881A (ko) 2007-06-14
JP5154934B2 (ja) 2013-02-27
JP2008513823A (ja) 2008-05-01
US7788090B2 (en) 2010-08-31
WO2006030340A3 (en) 2007-07-05
CN101124626B (zh) 2011-07-06
CN101124626A (zh) 2008-02-13
US20080097763A1 (en) 2008-04-24
WO2006030340A2 (en) 2006-03-23
RU2007114276A (ru) 2008-10-27
BRPI0515343A8 (pt) 2016-11-29

Similar Documents

Publication Publication Date Title
MX2007003063A (es) Codificacion combinada de audio que minimiza la distorsion perceptual.
DE602006015294D1 (de) Mehrkanal-audiocodierung
TWI318079B (en) Individual channel shaping for bcc schemes and the like
PL2088580T3 (pl) Kodowanie sygnałów audio
HK1103501A1 (en) Multi-layer video coding and decoding methods and multi-layer video encoder and decoder
WO2008022176A3 (en) Packet loss concealment for sub-band predictive coding based on extrapolation of full-band audio waveform
WO2008016935A3 (en) Systems, methods, and apparatus for wideband encoding and decoding of inactive frames
PL1803325T3 (pl) Kształtowanie obwiedni dźwięku rozproszonego wykorzystywane w schematach kodowania binauralnego i podobnych
ATE531035T1 (de) Parametrische verbundcodierung von audioquellen
TW200746051A (en) Apparatus and method for encoding and decoding signal
MX2011008685A (es) Codificador, decodificador y metodo para los mismos.
ATE406651T1 (de) Audiokodierung und audiodekodierung
MX2009007412A (es) Decodificador de audio.
MX2007005261A (es) Codificacion y descodificacion de un conjunto de senales.
TW200707275A (en) Method and apparatus for audio encoding and decoding
TW200731811A (en) Feedback and frame synchronization between media encoders and decoders
TW200737745A (en) Decoding device and related method
TW200625954A (en) Video playback apparatus and video playback method
TW200729153A (en) Communication apparatus
TW200740264A (en) Method for encoding and decoding multi-channel audio signal and apparatus thereof
TH73191B (th) โคเดกสัญญาณเสียงหลายแบบวิธีและการเข้ารหัสแบบซีอีแอลพีของโคเดกสัญญาณเสียงหลายแบบวิธี
WO2009047675A3 (en) Encoding and decoding of an audio signal
TH128689A (th) โคเดกสัญญาณเสียงหลายแบบวิธีและการเข้ารหัสแบบซีอีแอลพีของโคเดกสัญญาณเสียงหลายแบบวิธี

Legal Events

Date Code Title Description
FG Grant or registration