[go: up one dir, main page]

MX2012004648A - Codificacion de señal de audio, decodificador de señal de audio, metodo para codificar o decodificar una señal de audio utilizando una cancelacion del tipo aliasing. - Google Patents

Codificacion de señal de audio, decodificador de señal de audio, metodo para codificar o decodificar una señal de audio utilizando una cancelacion del tipo aliasing.

Info

Publication number
MX2012004648A
MX2012004648A MX2012004648A MX2012004648A MX2012004648A MX 2012004648 A MX2012004648 A MX 2012004648A MX 2012004648 A MX2012004648 A MX 2012004648A MX 2012004648 A MX2012004648 A MX 2012004648A MX 2012004648 A MX2012004648 A MX 2012004648A
Authority
MX
Mexico
Prior art keywords
domain
audio signal
transform
spectral
representation
Prior art date
Application number
MX2012004648A
Other languages
English (en)
Inventor
Lars Villemoes
Max Neuendorf
Bernhard Grill
Nikolaus Rettelbach
Bruno Bessette
Ralf Geiger
Philippe Gournay
Roch Lefebvre
Jeremie Lecomte
Bayer Stefan
Redwan Salami
Albertus C Den Brinker
Original Assignee
Fraunhofer Ges Forschung
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 Fraunhofer Ges Forschung filed Critical Fraunhofer Ges Forschung
Publication of MX2012004648A publication Critical patent/MX2012004648A/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
    • 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
    • G10L19/03—Spectral prediction for preventing pre-echo; Temporary noise shaping [TNS], e.g. in MPEG2 or MPEG4
    • 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
    • G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
    • G10L19/12—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being a code excitation, e.g. in code excited linear prediction [CELP] 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
    • 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
    • G10L19/02—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
    • G10L19/0212—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 using orthogonal transformation
    • 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
    • G10L19/20—Vocoders using multiple modes using sound class specific coding, hybrid encoders or object based coding
    • 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
    • G10L2019/0001—Codebooks
    • G10L2019/0007—Codebook element generation
    • G10L2019/0008—Algebraic codebooks

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Abstract

Un decodificador de señal de audio para proporcionar una representación decodificada de un contenido de audio en base a una representación codificada del contenido de audio comprende una ruta de dominio de la transformada configurada para obtener una representación de dominio temporal de una porción del contenido de audio codificada en un modo de dominio de la transformada en base a un primer grupo de coeficientes espectrales, una representación de una señal de estímulo de cancelación de solapamiento y una pluralidad de parámetros de dominio de predicción lineal. La ruta de dominio de la transformada comprende un procesador espectral configurado para aplicar un moldeado espectral al primer grupo de coeficientes espectrales dependiendo de al menos un subgrupo de parámetros de dominio de predicción lineal para obtener una versión de moldeado espectral del primer grupo de coeficientes espectrales. La ruta de dominio de la transformada también comprende un primer conversor de dominio frecuencial a dominio temporal configurado para obtener una representación de dominio temporal del contenido de audio en base a una versión de moldeado espectral del primer grupo de coeficientes espectrales. La ruta de dominio de la transformada comprende un filtro de estímulo de cancelación de solapamiento configurado para filtrar la señal de estímulo de cancelación de solapamiento dependiendo de al menos un subgrupo de los parámetros de dominio de predicción lineal, para derivar una señal de síntesis de cancelación de solapamiento de la señal de estímulo de cancelación de solapamiento. La ruta de dominio de la transformada también comprende un combinador configurado para combinar la representación de dominio temporal del contenido de audio con la señal de síntesis de cancelación de solapamiento, o una versión postprocesada del mismo, para obtener una señal de dominio temporal con solapamiento reducido.
MX2012004648A 2009-10-20 2010-10-19 Codificacion de señal de audio, decodificador de señal de audio, metodo para codificar o decodificar una señal de audio utilizando una cancelacion del tipo aliasing. MX2012004648A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US25346809P 2009-10-20 2009-10-20
PCT/EP2010/065752 WO2011048117A1 (en) 2009-10-20 2010-10-19 Audio signal encoder, audio signal decoder, method for encoding or decoding an audio signal using an aliasing-cancellation

Publications (1)

Publication Number Publication Date
MX2012004648A true MX2012004648A (es) 2012-05-29

Family

ID=43447730

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2012004648A MX2012004648A (es) 2009-10-20 2010-10-19 Codificacion de señal de audio, decodificador de señal de audio, metodo para codificar o decodificar una señal de audio utilizando una cancelacion del tipo aliasing.

Country Status (17)

Country Link
US (1) US8484038B2 (es)
EP (5) EP4362014B1 (es)
JP (1) JP5247937B2 (es)
KR (1) KR101411759B1 (es)
CN (1) CN102884574B (es)
AR (1) AR078704A1 (es)
AU (1) AU2010309838B2 (es)
BR (1) BR112012009447B1 (es)
CA (1) CA2778382C (es)
ES (3) ES3031957T3 (es)
MX (1) MX2012004648A (es)
MY (1) MY166169A (es)
PL (3) PL2491556T3 (es)
RU (1) RU2591011C2 (es)
TW (1) TWI430263B (es)
WO (1) WO2011048117A1 (es)
ZA (1) ZA201203608B (es)

Families Citing this family (81)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MX2011000375A (es) * 2008-07-11 2011-05-19 Fraunhofer Ges Forschung Codificador y decodificador de audio para codificar y decodificar tramas de una señal de audio muestreada.
CA2730315C (en) * 2008-07-11 2014-12-16 Jeremie Lecomte Audio encoder and decoder for encoding frames of sampled audio signals
CA2871498C (en) * 2008-07-11 2017-10-17 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Audio encoder and decoder for encoding and decoding audio samples
EP2144230A1 (en) 2008-07-11 2010-01-13 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Low bitrate audio encoding/decoding scheme having cascaded switches
DK3364414T3 (da) 2008-12-15 2022-06-27 Fraunhofer Ges Forschung Audiobåndbreddeudvidelsesafkoder, tilsvarende fremgangsmåde og computerprogram
US8457975B2 (en) * 2009-01-28 2013-06-04 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Audio decoder, audio encoder, methods for decoding and encoding an audio signal and computer program
JP4977157B2 (ja) 2009-03-06 2012-07-18 株式会社エヌ・ティ・ティ・ドコモ 音信号符号化方法、音信号復号方法、符号化装置、復号装置、音信号処理システム、音信号符号化プログラム、及び、音信号復号プログラム
WO2010148516A1 (en) * 2009-06-23 2010-12-29 Voiceage Corporation Forward time-domain aliasing cancellation with application in weighted or original signal domain
CN102648494B (zh) * 2009-10-08 2014-07-02 弗兰霍菲尔运输应用研究公司 多模式音频信号解码器、多模式音频信号编码器、使用基于线性预测编码的噪声塑形的方法
ES2989851T3 (es) * 2009-10-21 2024-11-27 Dolby Int Ab Sobremuestreo en un banco de filtros de reemisor combinado
US9093066B2 (en) 2010-01-13 2015-07-28 Voiceage Corporation Forward time-domain aliasing cancellation using linear-predictive filtering to cancel time reversed and zero input responses of adjacent frames
CN105355209B (zh) 2010-07-02 2020-02-14 杜比国际公司 音高增强后置滤波器
RU2562384C2 (ru) * 2010-10-06 2015-09-10 Фраунхофер-Гезелльшафт Цур Фердерунг Дер Ангевандтен Форшунг Е.Ф. Способ и устройство для обработки аудио сигнала и для обеспечения большей детализации во времени для комбинированного унифицированного кодека речи и аудио (usac)
US8868432B2 (en) * 2010-10-15 2014-10-21 Motorola Mobility Llc Audio signal bandwidth extension in CELP-based speech coder
EP2676266B1 (en) 2011-02-14 2015-03-11 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Linear prediction based coding scheme using spectral domain noise shaping
CN103493129B (zh) 2011-02-14 2016-08-10 弗劳恩霍夫应用研究促进协会 用于使用瞬态检测及质量结果将音频信号的部分编码的装置与方法
CA2799343C (en) 2011-02-14 2016-06-21 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Information signal representation using lapped transform
KR101551046B1 (ko) 2011-02-14 2015-09-07 프라운호퍼 게젤샤프트 쭈르 푀르데룽 데어 안겐반텐 포르슝 에. 베. 저-지연 통합 스피치 및 오디오 코딩에서 에러 은닉을 위한 장치 및 방법
RU2586597C2 (ru) 2011-02-14 2016-06-10 Фраунхофер-Гезелльшафт Цур Фердерунг Дер Ангевандтен Форшунг Е.Ф. Кодирование и декодирование позиций импульсов дорожек аудиосигнала
TWI469136B (zh) * 2011-02-14 2015-01-11 Fraunhofer Ges Forschung 在一頻譜域中用以處理已解碼音訊信號之裝置及方法
EP2691951B1 (en) 2011-03-28 2016-08-24 Dolby Laboratories Licensing Corporation Reduced complexity transform for a low-frequency-effects channel
TWI470622B (zh) * 2012-03-19 2015-01-21 Dolby Lab Licensing Corp 用於低頻效應頻道降低複雜度之轉換
CN103548080B (zh) * 2012-05-11 2017-03-08 松下电器产业株式会社 声音信号混合编码器、声音信号混合解码器、声音信号编码方法以及声音信号解码方法
PT2936486T (pt) * 2012-12-21 2018-10-19 Fraunhofer Ges Forschung Adição de ruído de conforto para modelagem do ruído de fundo em baixas taxas de bits
CN105976830B (zh) 2013-01-11 2019-09-20 华为技术有限公司 音频信号编码和解码方法、音频信号编码和解码装置
ES2635142T3 (es) * 2013-01-29 2017-10-02 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Énfasis de baja frecuencia para la codificación basada en lpc en el dominio de la frecuencia
SG11201505893TA (en) 2013-01-29 2015-08-28 Fraunhofer Ges Forschung Noise filling concept
JP6181773B2 (ja) * 2013-01-29 2017-08-16 フラウンホーファー−ゲゼルシャフト・ツール・フェルデルング・デル・アンゲヴァンテン・フォルシュング・アインゲトラーゲネル・フェライン Ｃｅｌｐ状コーダのためのサイド情報を用いないノイズ充填
US9842598B2 (en) * 2013-02-21 2017-12-12 Qualcomm Incorporated Systems and methods for mitigating potential frame instability
EP3537437B1 (en) * 2013-03-04 2021-04-14 VoiceAge EVS LLC Device and method for reducing quantization noise in a time-domain decoder
TWI546799B (zh) 2013-04-05 2016-08-21 杜比國際公司 音頻編碼器及解碼器
BR112015032013B1 (pt) * 2013-06-21 2021-02-23 Fraunhofer-Gesellschaft zur Förderung der Angewandten ForschungE.V. Método e equipamento para a obtenção de coeficientes do espectropara um quadro de substituição de um sinal de áudio, descodificador de áudio,receptor de áudio e sistema para transmissão de sinais de áudio
FR3008533A1 (fr) * 2013-07-12 2015-01-16 Orange Facteur d'echelle optimise pour l'extension de bande de frequence dans un decodeur de signaux audiofrequences
EP2830064A1 (en) 2013-07-22 2015-01-28 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for decoding and encoding an audio signal using adaptive spectral tile selection
EP2830058A1 (en) 2013-07-22 2015-01-28 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Frequency-domain audio coding supporting transform length switching
US9418671B2 (en) * 2013-08-15 2016-08-16 Huawei Technologies Co., Ltd. Adaptive high-pass post-filter
KR101820028B1 (ko) * 2013-08-23 2018-02-28 프라운호퍼 게젤샤프트 쭈르 푀르데룽 데어 안겐반텐 포르슝 에.베. 오버랩 범위 내의 결합을 사용하여 오디오 신호를 처리하기 위한 장치 및 방법
FR3011408A1 (fr) * 2013-09-30 2015-04-03 Orange Re-echantillonnage d'un signal audio pour un codage/decodage a bas retard
PL3483881T3 (pl) 2013-11-13 2025-03-31 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Enkoder do enkodowania sygnału audio, system przesyłania audio i sposób określania wartości korekcji
EP2887350B1 (en) 2013-12-19 2016-10-05 Dolby Laboratories Licensing Corporation Adaptive quantization noise filtering of decoded audio data
EP2980797A1 (en) 2014-07-28 2016-02-03 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio decoder, method and computer program using a zero-input-response to obtain a smooth transition
EP2916319A1 (en) 2014-03-07 2015-09-09 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Concept for encoding of information
JP6035270B2 (ja) * 2014-03-24 2016-11-30 株式会社Ｎｔｔドコモ 音声復号装置、音声符号化装置、音声復号方法、音声符号化方法、音声復号プログラム、および音声符号化プログラム
EP4376304A3 (en) 2014-03-31 2024-07-24 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Encoder, decoder, encoding method, decoding method, and program
JP6086999B2 (ja) * 2014-07-28 2017-03-01 フラウンホーファー−ゲゼルシャフト・ツール・フェルデルング・デル・アンゲヴァンテン・フォルシュング・アインゲトラーゲネル・フェライン ハーモニクス低減を使用して第１符号化アルゴリズムと第２符号化アルゴリズムの一方を選択する装置及び方法
EP2980795A1 (en) 2014-07-28 2016-02-03 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio encoding and decoding using a frequency domain processor, a time domain processor and a cross processor for initialization of the time domain processor
EP2980794A1 (en) 2014-07-28 2016-02-03 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio encoder and decoder using a frequency domain processor and a time domain processor
CN106448688B (zh) 2014-07-28 2019-11-05 华为技术有限公司 音频编码方法及相关装置
EP2980791A1 (en) 2014-07-28 2016-02-03 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Processor, method and computer program for processing an audio signal using truncated analysis or synthesis window overlap portions
EP2980796A1 (en) * 2014-07-28 2016-02-03 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Method and apparatus for processing an audio signal, audio decoder, and audio encoder
FR3024581A1 (fr) * 2014-07-29 2016-02-05 Orange Determination d'un budget de codage d'une trame de transition lpd/fd
FR3024582A1 (fr) * 2014-07-29 2016-02-05 Orange Gestion de la perte de trame dans un contexte de transition fd/lpd
EP2988300A1 (en) 2014-08-18 2016-02-24 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Switching of sampling rates at audio processing devices
TWI602172B (zh) * 2014-08-27 2017-10-11 弗勞恩霍夫爾協會 使用參數以加強隱蔽之用於編碼及解碼音訊內容的編碼器、解碼器及方法
SG11201702301SA (en) * 2014-10-02 2017-04-27 Dolby Int Ab Decoding method and decoder for dialog enhancement
EP3067887A1 (en) * 2015-03-09 2016-09-14 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio encoder for encoding a multichannel signal and audio decoder for decoding an encoded audio signal
WO2016142002A1 (en) * 2015-03-09 2016-09-15 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Audio encoder, audio decoder, method for encoding an audio signal and method for decoding an encoded audio signal
TWI771266B (zh) * 2015-03-13 2022-07-11 瑞典商杜比國際公司 解碼具有增強頻譜帶複製元資料在至少一填充元素中的音訊位元流
EP3107096A1 (en) 2015-06-16 2016-12-21 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Downscaled decoding
WO2017049396A1 (en) * 2015-09-25 2017-03-30 Voiceage Corporation Method and system for time domain down mixing a stereo sound signal into primary and secondary channels using detecting an out-of-phase condition of the left and right channels
WO2017050398A1 (en) * 2015-09-25 2017-03-30 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Encoder, decoder and methods for signal-adaptive switching of the overlap ratio in audio transform coding
US12125492B2 (en) 2015-09-25 2024-10-22 Voiceage Coproration Method and system for decoding left and right channels of a stereo sound signal
WO2020094263A1 (en) 2018-11-05 2020-05-14 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and audio signal processor, for providing a processed audio signal representation, audio decoder, audio encoder, methods and computer programs
CN111210831B (zh) * 2018-11-22 2024-06-04 广州广晟数码技术有限公司 基于频谱拉伸的带宽扩展音频编解码方法及装置
US10957331B2 (en) 2018-12-17 2021-03-23 Microsoft Technology Licensing, Llc Phase reconstruction in a speech decoder
US10847172B2 (en) * 2018-12-17 2020-11-24 Microsoft Technology Licensing, Llc Phase quantization in a speech encoder
KR102617221B1 (ko) 2019-02-01 2023-12-27 베이징 바이트댄스 네트워크 테크놀로지 컴퍼니, 리미티드 파라미터 세트들을 사용한 인-루프 재성형 정보의 시그널링
WO2020164752A1 (en) 2019-02-13 2020-08-20 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio transmitter processor, audio receiver processor and related methods and computer programs
CN117499644A (zh) 2019-03-14 2024-02-02 北京字节跳动网络技术有限公司 环路整形信息的信令和语法
JP7417624B2 (ja) 2019-03-23 2024-01-18 北京字節跳動網絡技術有限公司 適応ループフィルタリングパラメータセットに対する制限
WO2020207593A1 (en) 2019-04-11 2020-10-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio decoder, apparatus for determining a set of values defining characteristics of a filter, methods for providing a decoded audio representation, methods for determining a set of values defining characteristics of a filter and computer program
CN110297357B (zh) 2019-06-27 2021-04-09 厦门天马微电子有限公司 一种曲面背光模组的制备方法、曲面背光模组及显示装置
US11488613B2 (en) * 2019-11-13 2022-11-01 Electronics And Telecommunications Research Institute Residual coding method of linear prediction coding coefficient based on collaborative quantization, and computing device for performing the method
US12512106B2 (en) * 2020-05-20 2025-12-30 Dolby International Ab Methods and apparatus for unified speech and audio decoding improvements
KR20210158108A (ko) 2020-06-23 2021-12-30 한국전자통신연구원 양자화 잡음을 줄이는 오디오 신호의 부호화 및 복호화 방법과 이를 수행하는 부호화기 및 복호화기
KR20220005379A (ko) * 2020-07-06 2022-01-13 한국전자통신연구원 천이구간 부호화 왜곡에 강인한 오디오 부호화/복호화 장치 및 방법
JP6862021B1 (ja) * 2020-08-07 2021-04-21 ｎｅｘｔ Ｓｏｕｎｄ株式会社 立体音響を生成する方法
JP7491395B2 (ja) * 2020-11-05 2024-05-28 日本電信電話株式会社 音信号精製方法、音信号復号方法、これらの装置、プログラム及び記録媒体
KR20220117019A (ko) 2021-02-16 2022-08-23 한국전자통신연구원 학습 모델을 이용한 오디오 신호의 부호화 및 복호화 방법과 그 학습 모델의 트레이닝 방법 및 이를 수행하는 부호화기 및 복호화기
CN115050377B (zh) * 2021-02-26 2024-09-27 腾讯科技（深圳）有限公司 音频转码方法、装置、音频转码器、设备以及存储介质
CN117977635B (zh) * 2024-03-27 2024-06-11 西安热工研究院有限公司 熔盐耦合火电机组的调频方法、装置、电子设备及介质

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19730130C2 (de) * 1997-07-14 2002-02-28 Fraunhofer Ges Forschung Verfahren zum Codieren eines Audiosignals
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
AU2003208517A1 (en) * 2003-03-11 2004-09-30 Nokia Corporation Switching between coding schemes
EP1618557B1 (en) * 2003-05-01 2007-07-25 Nokia Corporation Method and device for gain quantization in variable bit rate wideband speech coding
CA2457988A1 (en) * 2004-02-18 2005-08-18 Voiceage Corporation Methods and devices for audio compression based on acelp/tcx coding and multi-rate lattice vector quantization
WO2005096273A1 (en) * 2004-04-01 2005-10-13 Beijing Media Works Co., Ltd Enhanced audio encoding/decoding device and method
EP2752843A1 (en) * 2004-11-05 2014-07-09 Panasonic Corporation Encoder, decoder, encoding method, and decoding method
EP1869671B1 (de) * 2005-04-28 2009-07-01 Siemens Aktiengesellschaft Verfahren und vorrichtung zur geräuschunterdrückung
RU2351024C2 (ru) * 2005-04-28 2009-03-27 Сименс Акциенгезелльшафт Способ и устройство для подавления шумов
PL2052548T3 (pl) * 2006-12-12 2012-08-31 Fraunhofer Ges Forschung Koder, dekoder oraz sposoby kodowania i dekodowania segmentów danych reprezentujących strumień danych w dziedzinie czasu
CN101231850B (zh) * 2007-01-23 2012-02-29 华为技术有限公司 编解码方法及装置
PL2165328T3 (pl) * 2007-06-11 2018-06-29 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Kodowanie i dekodowanie sygnału audio zawierającego część impulsową i część stacjonarną
CA2730355C (en) * 2008-07-11 2016-03-22 Guillaume Fuchs Apparatus and method for encoding/decoding an audio signal using an aliasing switch scheme
KR101622950B1 (ko) * 2009-01-28 2016-05-23 삼성전자주식회사 오디오 신호의 부호화 및 복호화 방법 및 그 장치
WO2010148516A1 (en) * 2009-06-23 2010-12-29 Voiceage Corporation Forward time-domain aliasing cancellation with application in weighted or original signal domain

Also Published As

Publication number Publication date
EP2491556C0 (en) 2024-04-10
WO2011048117A1 (en) 2011-04-28
US8484038B2 (en) 2013-07-09
ES3031957T3 (en) 2025-07-14
ES3028558T3 (en) 2025-06-19
BR112012009447B1 (pt) 2021-10-13
ES2978918T3 (es) 2024-09-23
US20120271644A1 (en) 2012-10-25
EP4571739A1 (en) 2025-06-18
EP2491556B1 (en) 2024-04-10
EP4362014C0 (en) 2025-04-23
PL4358082T3 (pl) 2025-08-18
AU2010309838A1 (en) 2012-05-31
TW201129970A (en) 2011-09-01
EP4362014A1 (en) 2024-05-01
EP2491556A1 (en) 2012-08-29
KR20120128123A (ko) 2012-11-26
CA2778382A1 (en) 2011-04-28
CN102884574B (zh) 2015-10-14
RU2012119260A (ru) 2013-11-20
CN102884574A (zh) 2013-01-16
PL4362014T3 (pl) 2025-08-18
EP4358082B1 (en) 2025-04-23
BR112012009447A2 (pt) 2020-12-01
PL2491556T3 (pl) 2024-08-26
CA2778382C (en) 2016-01-05
EP4358082A1 (en) 2024-04-24
ZA201203608B (en) 2013-01-30
AU2010309838B2 (en) 2014-05-08
KR101411759B1 (ko) 2014-06-25
EP4362014B1 (en) 2025-04-23
AR078704A1 (es) 2011-11-30
RU2591011C2 (ru) 2016-07-10
EP4358082C0 (en) 2025-04-23
JP2013508765A (ja) 2013-03-07
JP5247937B2 (ja) 2013-07-24
MY166169A (en) 2018-06-07
TWI430263B (zh) 2014-03-11
EP4651130A1 (en) 2025-11-19

Similar Documents

Publication Publication Date Title
MX2012004648A (es) Codificacion de señal de audio, decodificador de señal de audio, metodo para codificar o decodificar una señal de audio utilizando una cancelacion del tipo aliasing.
MX340575B (es) Aparato y metodo para codificar y decodificar una señal de audio codificada utilizando modelado de ruido temporal/de parche.
CY1121008T1 (el) Διαταξη για την αποκωδικοποιηση υπολειπομενης ενοτητας
AR072551A1 (es) Esquema de codificacion / decodificacion de audio que tiene una derivacion conmutable
CO6341673A2 (es) Esquema de codificacion / decodificacion de audio a baja tasa de bits con pre-procesamiento comun
MY153455A (en) Low bitrate audio encoding/decoding scheme having cascaded switches
NO20092506L (no) Koder, dekoder og fremgangsmater for koding og dekoding av datasegmenter som representerer en datastrom i tidsdomene
MY154100A (en) Method and apparatus to encode and decode an audio/speech signal
PH12014502144A1 (en) Transform coefficient coding
MX372600B (es) Decodificador para decodificar una señal de audio codificada y codificador para codificar una señal de audio
MY178139A (en) Audio decoder and method for providing a decoded audio information using an errorconcealment based on a time domain excitation signal
MY175460A (en) Audio decoder and method for providing a decoded audio information using an error concealment modifying a time domain excitation signal
IN2014KN01222A (es)
BR112013032727A2 (pt) processador de sinais de áudio e método de processamento de sinais de áudio
MY200591A (en) Methods, encoder and decoder for linear predictive encoding and decoding of sound signals upon transition between frames having different sampling rates
BR112015025022A2 (pt) codificador e decodificador de áudio para codificação de forma de onda interestratificada
TR201815245T4 (tr) Armonik ses sinyallerinin dönüşüm kodlaması / kod çözümü.
MX2016012393A (es) Dispositivo decodificador de audio, dispositivo codificador de audio, metodo de decodificacion de audio, metodo de codificacion de audio, programa de decodificacion de audio, y programa de codificacion de audio.
MY169410A (en) Audio decoder having a bandwidth extension module with an energy adjusting module
TW200623027A (en) Processing of encoded signals
AR096993A1 (es) Aparato y método para decodificar o codificar una señal de audio usando valores de información de energía para una banda de reconstrucción
TH136424A (th) ตัวเข้ารหัสสัญญาณเสียง ตัวถอดรหัสสัญญาณเสียง วิธีการสำหรับเข้ารหัส หรือถอดรหัสสัญญาณเสียงโดยการใช้การยกเลิกการเกิดแอลิแอส
TH170773A (th) การเติมสัญญาณรบกวนในการลงรหัสสัญญาณเสียงแบบหลายช่องสัญญาณ
MY153593A (en) Low bitrate audio encoding/decoding scheme with common pre-processing

Legal Events

Date Code Title Description
GB Transfer or rights

Owner name: FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWAN

FG Grant or registration