[go: up one dir, main page]

NO20091951L - Apparat og fremgangsmate for a generere audio subbandverdier, samt apparat fog fremgangsmate for a generere audioutvalg i tidsdomene - Google Patents

Apparat og fremgangsmate for a generere audio subbandverdier, samt apparat fog fremgangsmate for a generere audioutvalg i tidsdomene

Info

Publication number
NO20091951L
NO20091951L NO20091951A NO20091951A NO20091951L NO 20091951 L NO20091951 L NO 20091951L NO 20091951 A NO20091951 A NO 20091951A NO 20091951 A NO20091951 A NO 20091951A NO 20091951 L NO20091951 L NO 20091951L
Authority
NO
Norway
Prior art keywords
window
generating audio
time domain
samples
group
Prior art date
Application number
NO20091951A
Other languages
English (en)
Other versions
NO341610B1 (no
Inventor
Manfred Lutzky
Ralf Geiger
Gerald Schuller
Marc Gayer
Markus Lohwasser
Bernhard Grill
Markus Schnell
Markus Schmidt
Michael Mellar
Bernd Edler
Markus Multrus
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 NO20091951L publication Critical patent/NO20091951L/no
Publication of NO341610B1 publication Critical patent/NO341610B1/no

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
    • G10L19/02—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
    • 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
    • G10L19/022—Blocking, i.e. grouping of samples in time; Choice of analysis windows; Overlap factoring
    • 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
    • G10L19/0204—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 subband decomposition
    • 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
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/45—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of analysis window
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H17/00—Networks using digital techniques
    • H03H17/02—Frequency selective networks
    • H03H17/0248—Filters characterised by a particular frequency response or filtering method
    • H03H17/0264—Filter sets with mutual related characteristics
    • H03H17/0266—Filter banks
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Computational Linguistics (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Mathematical Physics (AREA)
  • Computer Hardware Design (AREA)
  • Theoretical Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Liquid Crystal Substances (AREA)
  • Tires In General (AREA)
  • Developing Agents For Electrophotography (AREA)
  • External Artificial Organs (AREA)
  • Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
  • Materials For Photolithography (AREA)
  • Peptides Or Proteins (AREA)

Abstract

En utførelse av et apparat (100) for å generere audiodelbåndsverdier i audiodelbåndskanaler omfatter en analysevindussending (110) for vindussending av en ramme (120) av tids-domeneaudioinngangssampler som befinner seg i en tidssekvens som strekker seg fra et tidlig sampel til et senere sampel ved å bruke en analysevindusfunksjon (190) som omfatter en sekvens av vinduskoeffisienter for å tilveiebringe vindussendte sampler. Analysevindusfunksjonen (190) omfatter en første gruppe (200) av vinduskøeffisienter og en andre gruppe (210) av vinduskoeffisienter. Den første gruppe (200) av vinduskoeffisienter blir brukt for vindussending av senere tids-domenesampler og den andre gruppe (210) av vinduskoeffisienter blir brukt for vindussending av tidligere tids-domenesampler. Apparatet (100) omfatter videre en kalkulator (170) for å beregne audiodelbåndsverdiene som bruker de vindussendte sampler.
NO20091951A 2006-10-25 2009-05-19 Apparat og fremgangsmåte for å generere audiosubbåndverdier, samt apparat og fremgangsmåte for å generere audioutvalg i tidsdomene NO341610B1 (no)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US86295406P 2006-10-25 2006-10-25
PCT/EP2007/009199 WO2008049589A1 (en) 2006-10-25 2007-10-23 Apparatus and method for generating audio subband values and apparatus and method for generating time-domain audio samples

Publications (2)

Publication Number Publication Date
NO20091951L true NO20091951L (no) 2009-07-22
NO341610B1 NO341610B1 (no) 2017-12-11

Family

ID=39048961

Family Applications (3)

Application Number Title Priority Date Filing Date
NO20084012A NO341567B1 (no) 2006-10-25 2008-09-19 Apparat og fremgangsmåte for å generere audiobåndverdier, og apparat og fremgangsmåte for å generere audioutvalg i tidsdomene
NO20091951A NO341610B1 (no) 2006-10-25 2009-05-19 Apparat og fremgangsmåte for å generere audiosubbåndverdier, samt apparat og fremgangsmåte for å generere audioutvalg i tidsdomene
NO20170452A NO342691B1 (no) 2006-10-25 2017-03-23 Apparat og fremgangsmåte for å generere audiodelbåndsverdier, samt apparat og fremgangsmåte for å generere tidsdomeneaudiosampler

Family Applications Before (1)

Application Number Title Priority Date Filing Date
NO20084012A NO341567B1 (no) 2006-10-25 2008-09-19 Apparat og fremgangsmåte for å generere audiobåndverdier, og apparat og fremgangsmåte for å generere audioutvalg i tidsdomene

Family Applications After (1)

Application Number Title Priority Date Filing Date
NO20170452A NO342691B1 (no) 2006-10-25 2017-03-23 Apparat og fremgangsmåte for å generere audiodelbåndsverdier, samt apparat og fremgangsmåte for å generere tidsdomeneaudiosampler

Country Status (25)

Country Link
US (12) USRE49999E1 (no)
EP (10) EP4325723B1 (no)
JP (2) JP4936569B2 (no)
KR (2) KR101056253B1 (no)
CN (2) CN101405791B (no)
AR (2) AR063400A1 (no)
AT (1) ATE435480T1 (no)
AU (2) AU2007308415B2 (no)
BR (2) BRPI0709310B1 (no)
CA (2) CA2645618C (no)
DE (1) DE602007001460D1 (no)
DK (2) DK3848928T3 (no)
ES (10) ES2993633T3 (no)
FI (1) FI3848928T3 (no)
HU (5) HUE068021T2 (no)
IL (2) IL193786A (no)
MX (2) MX2008011898A (no)
MY (2) MY142520A (no)
NO (3) NO341567B1 (no)
PL (10) PL3848928T3 (no)
PT (5) PT3288027T (no)
RU (2) RU2420815C2 (no)
TW (2) TWI357065B (no)
WO (2) WO2008049590A1 (no)
ZA (2) ZA200810308B (no)

Families Citing this family (75)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8126721B2 (en) * 2006-10-18 2012-02-28 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Encoding an information signal
USRE50158E1 (en) 2006-10-25 2024-10-01 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Apparatus and method for generating audio subband values and apparatus and method for generating time-domain audio samples
KR101056253B1 (ko) 2006-10-25 2011-08-11 프라운호퍼 게젤샤프트 쭈르 푀르데룽 데어 안겐반텐 포르슝 에. 베. 오디오 서브밴드 값을 생성하는 장치 및 방법과 시간 영역 오디오 샘플을 생성하는 장치 및 방법
WO2008072524A1 (ja) * 2006-12-13 2008-06-19 Panasonic Corporation オーディオ信号符号化方法及び復号化方法
US8214200B2 (en) * 2007-03-14 2012-07-03 Xfrm, Inc. Fast MDCT (modified discrete cosine transform) approximation of a windowed sinusoid
ATE518224T1 (de) * 2008-01-04 2011-08-15 Dolby Int Ab Audiokodierer und -dekodierer
EP2261896B1 (en) * 2008-07-29 2017-12-06 Yamaha Corporation Performance-related information output device, system provided with performance-related information output device, and electronic musical instrument
EP2268057B1 (en) * 2008-07-30 2017-09-06 Yamaha Corporation Audio signal processing device, audio signal processing system, and audio signal processing method
US9384748B2 (en) 2008-11-26 2016-07-05 Electronics And Telecommunications Research Institute Unified Speech/Audio Codec (USAC) processing windows sequence based mode switching
CA2746837C (en) * 2008-12-15 2016-09-20 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Audio encoder and bandwidth extension decoder
CA2966469C (en) 2009-01-28 2020-05-05 Dolby International Ab Improved harmonic transposition
BR122019023709B1 (pt) 2009-01-28 2020-10-27 Dolby International Ab sistema para gerar um sinal de áudio de saída a partir de um sinal de áudio de entrada usando um fator de transposição t, método para transpor um sinal de áudio de entrada por um fator de transposição t e meio de armazenamento
TWI458258B (zh) 2009-02-18 2014-10-21 杜比國際公司 低延遲調變濾波器組及用以設計該低延遲調變濾波器組之方法
US8392200B2 (en) 2009-04-14 2013-03-05 Qualcomm Incorporated Low complexity spectral band replication (SBR) filterbanks
EP2451076B1 (en) 2009-06-29 2018-10-03 Mitsubishi Electric Corporation Audio signal processing device
CN101958119B (zh) * 2009-07-16 2012-02-29 中兴通讯股份有限公司 一种改进的离散余弦变换域音频丢帧补偿器和补偿方法
FR2949582B1 (fr) * 2009-09-02 2011-08-26 Alcatel Lucent Procede pour rendre un signal musical compatible avec un codec a transmission discontinue ; et dispositif pour la mise en ?uvre de ce procede
KR101701759B1 (ko) 2009-09-18 2017-02-03 돌비 인터네셔널 에이비 입력 신호를 전위시키기 위한 시스템 및 방법, 및 상기 방법을 수행하기 위한 컴퓨터 프로그램이 기록된 컴퓨터 판독가능 저장 매체
ES2656668T3 (es) * 2009-10-21 2018-02-28 Dolby International Ab Sobremuestreo en un banco de filtros de reemisor combinado
WO2011065287A1 (ja) * 2009-11-30 2011-06-03 三菱電機株式会社 分波装置、合波装置および中継装置
EP4435778B1 (en) 2010-01-19 2025-03-19 Dolby International AB Improved subband block based harmonic transposition
JP5782677B2 (ja) 2010-03-31 2015-09-24 ヤマハ株式会社 コンテンツ再生装置および音声処理システム
KR101364685B1 (ko) * 2010-04-13 2014-02-19 프라운호퍼 게젤샤프트 쭈르 푀르데룽 데어 안겐반텐 포르슝 에. 베. 오디오 신호의 샘플 정밀 표현을 위한 방법 및 인코더와 디코더
US9443534B2 (en) 2010-04-14 2016-09-13 Huawei Technologies Co., Ltd. Bandwidth extension system and approach
RU2530254C2 (ru) 2010-07-19 2014-10-10 Долби Интернешнл Аб Обработка звуковых сигналов в ходе высокочастотной реконструкции
US12002476B2 (en) 2010-07-19 2024-06-04 Dolby International Ab Processing of audio signals during high frequency reconstruction
CN101908342B (zh) * 2010-07-23 2012-09-26 北京理工大学 利用频域滤波后处理进行音频暂态信号预回声抑制的方法
US8755460B2 (en) * 2010-07-30 2014-06-17 National Instruments Corporation Phase aligned sampling of multiple data channels using a successive approximation register converter
US8762158B2 (en) * 2010-08-06 2014-06-24 Samsung Electronics Co., Ltd. Decoding method and decoding apparatus therefor
FR2969804A1 (fr) * 2010-12-23 2012-06-29 France Telecom Filtrage perfectionne dans le domaine transforme.
RU2580924C2 (ru) * 2011-02-14 2016-04-10 Фраунхофер-Гезелльшафт Цур Фердерунг Дер Ангевандтен Форшунг Е.Ф. Представление информационного сигнала с использованием преобразования с перекрытием
WO2012110447A1 (en) 2011-02-14 2012-08-23 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for error concealment in low-delay unified speech and audio coding (usac)
BR112013020592B1 (pt) 2011-02-14 2021-06-22 Fraunhofer-Gellschaft Zur Fôrderung Der Angewandten Forschung E. V. Codec de áudio utilizando síntese de ruído durante fases inativas
BR112013020588B1 (pt) 2011-02-14 2021-07-13 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Aparelho e método para codificação de uma parte de um sinal de áudio utilizando uma detecção transiente e um resultado de qualidade
ES2639646T3 (es) 2011-02-14 2017-10-27 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Codificación y decodificación de posiciones de impulso de pistas de una señal de audio
EP2676268B1 (en) 2011-02-14 2014-12-03 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for processing a decoded audio signal in a spectral domain
FR2977439A1 (fr) * 2011-06-28 2013-01-04 France Telecom Fenetres de ponderation en codage/decodage par transformee avec recouvrement, optimisees en retard.
FR2977969A1 (fr) * 2011-07-12 2013-01-18 France Telecom Adaptation de fenetres de ponderation d'analyse ou de synthese pour un codage ou decodage par transformee
EP2573761B1 (en) 2011-09-25 2018-02-14 Yamaha Corporation Displaying content in relation to music reproduction by means of information processing apparatus independent of music reproduction apparatus
EP2777042B1 (en) 2011-11-11 2019-08-14 Dolby International AB Upsampling using oversampled sbr
JP5494677B2 (ja) 2012-01-06 2014-05-21 ヤマハ株式会社 演奏装置及び演奏プログラム
EP2717262A1 (en) * 2012-10-05 2014-04-09 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Encoder, decoder and methods for signal-dependent zoom-transform in spatial audio object coding
EP3855430B1 (en) * 2013-02-05 2023-10-18 Telefonaktiebolaget LM Ericsson (publ) Method and appartus for controlling audio frame loss concealment
CN117253497A (zh) 2013-04-05 2023-12-19 杜比国际公司 音频信号的解码方法和解码器、介质以及编码方法
TWI557727B (zh) * 2013-04-05 2016-11-11 杜比國際公司 音訊處理系統、多媒體處理系統、處理音訊位元流的方法以及電腦程式產品
IL278164B (en) 2013-04-05 2022-08-01 Dolby Int Ab Audio encoder and decoder
US10893488B2 (en) 2013-06-14 2021-01-12 Microsoft Technology Licensing, Llc Radio frequency (RF) power back-off optimization for specific absorption rate (SAR) compliance
EP2830061A1 (en) 2013-07-22 2015-01-28 Fraunhofer Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for encoding and decoding an encoded audio signal using temporal noise/patch shaping
EP3975179A1 (en) * 2013-09-12 2022-03-30 Dolby International AB Time-alignment of qmf based processing data
CN105659630B (zh) * 2013-09-17 2018-01-23 韦勒斯标准与技术协会公司 用于处理多媒体信号的方法和设备
KR101804745B1 (ko) 2013-10-22 2017-12-06 한국전자통신연구원 오디오 신호의 필터 생성 방법 및 이를 위한 파라메터화 장치
KR102244613B1 (ko) * 2013-10-28 2021-04-26 삼성전자주식회사 Ｑｍｆ 필터링 방법 및 이를 수행하는 장치
KR101627661B1 (ko) 2013-12-23 2016-06-07 주식회사 윌러스표준기술연구소 오디오 신호 처리 방법, 이를 위한 파라메터화 장치 및 오디오 신호 처리 장치
EP3122073B1 (en) 2014-03-19 2023-12-20 Wilus Institute of Standards and Technology Inc. Audio signal processing method and apparatus
CN106165452B (zh) 2014-04-02 2018-08-21 韦勒斯标准与技术协会公司 音频信号处理方法和设备
EP4002359B1 (en) * 2014-06-10 2025-09-03 Lenbrook Industries Limited Digital encapsulation of audio signals
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
US10847170B2 (en) * 2015-06-18 2020-11-24 Qualcomm Incorporated Device and method for generating a high-band signal from non-linearly processed sub-ranges
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
MX386551B (es) * 2016-03-07 2025-03-19 Fraunhofer Ges Forschung Unidad de ocultamiento de error, decodificador de audio, y método relacionado y programa de computadora que usa características de una representación decodificada de una trama de audio decodificada apropiadamente.
US10770082B2 (en) * 2016-06-22 2020-09-08 Dolby International Ab Audio decoder and method for transforming a digital audio signal from a first to a second frequency domain
EP3276620A1 (en) 2016-07-29 2018-01-31 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Time domain aliasing reduction for non-uniform filterbanks which use spectral analysis followed by partial synthesis
US10224974B2 (en) 2017-03-31 2019-03-05 Microsoft Technology Licensing, Llc Proximity-independent SAR mitigation
TWI681384B (zh) * 2018-08-01 2020-01-01 瑞昱半導體股份有限公司 音訊處理方法與音訊等化器
BR112021017197A2 (pt) * 2019-03-06 2021-11-09 Fraunhofer Ges Forschung Mixador de redução e método de mixagem de redução
TWI866996B (zh) 2019-06-26 2024-12-21 美商杜拜研究特許公司 具有改善頻率解析度的低延遲音訊濾波器組
CN112447166B (zh) * 2019-08-16 2024-09-10 阿里巴巴集团控股有限公司 一种针对目标频谱矩阵的处理方法及装置
EP3786948A1 (en) * 2019-08-28 2021-03-03 Fraunhofer Gesellschaft zur Förderung der Angewand Time-varying time-frequency tilings using non-uniform orthogonal filterbanks based on mdct analysis/synthesis and tdar
KR20250116784A (ko) 2019-09-03 2025-08-01 돌비 레버러토리즈 라이쎈싱 코오포레이션 역상관 컴포넌트를 갖는 오디오 필터뱅크
CN111402917B (zh) * 2020-03-13 2023-08-04 北京小米松果电子有限公司 音频信号处理方法及装置、存储介质
MX2022015650A (es) 2020-06-11 2023-03-06 Dolby Int Ab Ocultacion de perdida de trama para un canal de efectos de baja frecuencia.
US11632147B2 (en) * 2020-08-13 2023-04-18 Marvell Asia Pte, Ltd. Simplified frequency-domain filter adaptation window
CN114007176B (zh) 2020-10-09 2023-12-19 上海又为智能科技有限公司 用于降低信号延时的音频信号处理方法、装置及存储介质

Family Cites Families (41)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US351882A (en) 1886-11-02 Thill-coupling
US3666543A (en) 1969-11-24 1972-05-30 Ludwig Maier Tris-(2-hydroxyalkyl)-phosphine oxide flame retardant articles
ES2044596T3 (es) 1989-05-17 1994-01-01 Telefunken Fernseh & Rundfunk Procedimiento para la transmision de una se\al.
CN1062963C (zh) * 1990-04-12 2001-03-07 多尔拜实验特许公司 用于产生高质量声音信号的解码器和编码器
JP3277682B2 (ja) 1994-04-22 2002-04-22 ソニー株式会社 情報符号化方法及び装置、情報復号化方法及び装置、並びに情報記録媒体及び情報伝送方法
KR100346734B1 (ko) 1995-09-22 2002-11-23 삼성전자 주식회사 고속분석필터및합성필터를구비한오디오부호화기및복호화기
US5819215A (en) 1995-10-13 1998-10-06 Dobson; Kurt Method and apparatus for wavelet based data compression having adaptive bit rate control for compression of digital audio or other sensory data
EP1019906B1 (en) 1997-01-27 2004-06-16 Entropic Research Laboratory Inc. A system and methodology for prosody modification
JP3065067B2 (ja) * 1998-03-04 2000-07-12 韓國電氣通信公社 Ｍｐｅｇオ―ディオ多チャンネル処理用等間隔サブバンド分析フィルタ及び合成フィルタ
FI114833B (fi) * 1999-01-08 2004-12-31 Nokia Corp Menetelmä, puhekooderi ja matkaviestin puheenkoodauskehysten muodostamiseksi
US6226608B1 (en) 1999-01-28 2001-05-01 Dolby Laboratories Licensing Corporation Data framing for adaptive-block-length coding system
US6510407B1 (en) 1999-10-19 2003-01-21 Atmel Corporation Method and apparatus for variable rate coding of speech
SE0001926D0 (sv) 2000-05-23 2000-05-23 Lars Liljeryd Improved spectral translation/folding in the subband domain
US6718300B1 (en) 2000-06-02 2004-04-06 Agere Systems Inc. Method and apparatus for reducing aliasing in cascaded filter banks
US6748363B1 (en) 2000-06-28 2004-06-08 Texas Instruments Incorporated TI window compression/expansion method
JP2002091499A (ja) 2000-06-14 2002-03-27 Texas Instruments Inc ウインドウ圧縮／伸張方法
EP1199711A1 (en) 2000-10-20 2002-04-24 Telefonaktiebolaget Lm Ericsson Encoding of audio signal using bandwidth expansion
US6996198B2 (en) 2000-10-27 2006-02-07 At&T Corp. Nonuniform oversampled filter banks for audio signal processing
US6707869B1 (en) 2000-12-28 2004-03-16 Nortel Networks Limited Signal-processing apparatus with a filter of flexible window design
SE0101175D0 (sv) * 2001-04-02 2001-04-02 Coding Technologies Sweden Ab Aliasing reduction using complex-exponential-modulated filterbanks
US7136418B2 (en) * 2001-05-03 2006-11-14 University Of Washington Scalable and perceptually ranked signal coding and decoding
JP4106624B2 (ja) 2001-06-29 2008-06-25 株式会社ケンウッド 信号の周波数成分を補間するための装置および方法
WO2003019533A1 (en) 2001-08-24 2003-03-06 Kabushiki Kaisha Kenwood Device and method for interpolating frequency components of signal adaptively
DE10228103A1 (de) 2002-06-24 2004-01-15 Bayer Cropscience Ag Fungizide Wirkstoffkombinationen
KR100728428B1 (ko) * 2002-09-19 2007-06-13 마츠시타 덴끼 산교 가부시키가이샤 오디오 디코딩 장치 및 오디오 디코딩 방법
SE0301273D0 (sv) 2003-04-30 2003-04-30 Coding Technologies Sweden Ab Advanced processing based on a complex-exponential-modulated filterbank and adaptive time signalling methods
JP3876850B2 (ja) 2003-06-02 2007-02-07 ヤマハ株式会社 アレースピーカーシステム
US7563748B2 (en) 2003-06-23 2009-07-21 Cognis Ip Management Gmbh Alcohol alkoxylate carriers for pesticide active ingredients
EP1513137A1 (en) 2003-08-22 2005-03-09 MicronasNIT LCC, Novi Sad Institute of Information Technologies Speech processing system and method with multi-pulse excitation
TWI227866B (en) 2003-11-07 2005-02-11 Mediatek Inc Subband analysis/synthesis filtering method
CN100573666C (zh) * 2003-11-26 2009-12-23 联发科技股份有限公司 子带分析/合成滤波方法
CN1270290C (zh) * 2003-11-26 2006-08-16 联发科技股份有限公司 子带分析/合成滤波方法
EP1711938A1 (en) 2004-01-28 2006-10-18 Koninklijke Philips Electronics N.V. Audio signal decoding using complex-valued data
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
RU2346996C2 (ru) 2004-06-29 2009-02-20 ЮРОПИЭН НИКЕЛЬ ПиЭлСи Усовершенствованное выщелачивание основных металлов
ES2636443T3 (es) 2005-04-01 2017-10-05 Qualcomm Incorporated Sistemas, procedimientos y aparatos para codificación de voz de banda ancha
US7774396B2 (en) 2005-11-18 2010-08-10 Dynamic Hearing Pty Ltd Method and device for low delay processing
US7953604B2 (en) * 2006-01-20 2011-05-31 Microsoft Corporation Shape and scale parameters for extended-band frequency coding
US8036903B2 (en) 2006-10-18 2011-10-11 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Analysis filterbank, synthesis filterbank, encoder, de-coder, mixer and conferencing system
KR101056253B1 (ko) 2006-10-25 2011-08-11 프라운호퍼 게젤샤프트 쭈르 푀르데룽 데어 안겐반텐 포르슝 에. 베. 오디오 서브밴드 값을 생성하는 장치 및 방법과 시간 영역 오디오 샘플을 생성하는 장치 및 방법
TW200922334A (en) 2007-11-02 2009-05-16 Univ Nat Chunghsing Low complexity frequency field motion estimation method adapted to wavelet video coding

Also Published As

Publication number Publication date
EP3848928A1 (en) 2021-07-14
TW200837719A (en) 2008-09-16
ES2631906T3 (es) 2017-09-06
ES2873254T3 (es) 2021-11-03
PL3848928T3 (pl) 2023-07-17
MX2009004477A (es) 2009-05-13
EP4300825C0 (en) 2024-08-28
EP4300824C0 (en) 2024-08-28
EP4300824A2 (en) 2024-01-03
EP2109098A3 (en) 2017-06-21
HUE068022T2 (hu) 2024-12-28
USRE50009E1 (en) 2024-06-11
IL197976A (en) 2014-03-31
CA2645618A1 (en) 2008-05-02
EP4300825A2 (en) 2024-01-03
DK3848928T3 (da) 2023-06-19
DK1994530T3 (da) 2009-08-31
US8775193B2 (en) 2014-07-08
RU2420815C2 (ru) 2011-06-10
BRPI0709310B1 (pt) 2019-11-05
PT2109098T (pt) 2020-12-18
ES2993633T3 (en) 2025-01-03
PL3288027T3 (pl) 2021-10-18
ZA200810308B (en) 2009-12-30
CA2645618C (en) 2013-01-22
CA2667505C (en) 2015-07-07
MY142520A (en) 2010-12-15
PT3288027T (pt) 2021-07-07
JP2009530675A (ja) 2009-08-27
USRE50144E1 (en) 2024-09-24
NO20084012L (no) 2009-07-22
TWI357065B (en) 2012-01-21
TWI355649B (en) 2012-01-01
EP2076901B8 (en) 2017-08-16
ES2328187T3 (es) 2009-11-10
PT2076901T (pt) 2017-08-23
PL2109098T3 (pl) 2021-03-08
USRE49999E1 (en) 2024-06-04
RU2008137468A (ru) 2010-03-27
ES2834024T3 (es) 2021-06-16
CN101405791A (zh) 2009-04-08
EP4325724A2 (en) 2024-02-21
EP4325723A2 (en) 2024-02-21
HUE068326T2 (hu) 2024-12-28
USRE50157E1 (en) 2024-10-01
PL2076901T3 (pl) 2017-09-29
HUE064482T2 (hu) 2024-03-28
EP4207189A1 (en) 2023-07-05
PT3848928T (pt) 2023-06-07
EP4207189C0 (en) 2023-11-22
KR20080102222A (ko) 2008-11-24
EP4300825A3 (en) 2024-03-20
NO341610B1 (no) 2017-12-11
USRE50159E1 (en) 2024-10-01
AR063400A1 (es) 2009-01-28
US20100023322A1 (en) 2010-01-28
IL197976A0 (en) 2009-12-24
BRPI0716315A2 (pt) 2017-05-30
EP4300825B1 (en) 2024-08-28
USRE50015E1 (en) 2024-06-18
EP4325724B1 (en) 2024-08-28
NO20170452A1 (no) 2009-07-22
EP2109098B1 (en) 2020-09-09
US8438015B2 (en) 2013-05-07
JP5083779B2 (ja) 2012-11-28
WO2008049589A1 (en) 2008-05-02
EP4325723C0 (en) 2024-08-28
FI3848928T3 (fi) 2023-06-02
USRE50194E1 (en) 2024-10-29
MX2008011898A (es) 2008-11-06
USRE50132E1 (en) 2024-09-17
US8452605B2 (en) 2013-05-28
ATE435480T1 (de) 2009-07-15
PT1994530E (pt) 2009-10-09
EP3288027B1 (en) 2021-04-07
PL4325723T3 (pl) 2024-11-04
PL4325724T3 (pl) 2024-11-04
AR063394A1 (es) 2009-01-28
KR101056253B1 (ko) 2011-08-11
EP4325723B1 (en) 2024-08-28
EP2076901A1 (en) 2009-07-08
AU2007308416B2 (en) 2010-07-08
HK1251073A1 (en) 2019-01-18
EP1994530B1 (en) 2009-07-01
PL1994530T3 (pl) 2009-12-31
TW200836166A (en) 2008-09-01
ES2993632T3 (en) 2025-01-03
PL4300824T3 (pl) 2024-10-28
ES2992734T3 (en) 2024-12-17
BRPI0709310A2 (pt) 2011-07-05
EP2076901B1 (en) 2017-05-10
ZA200902199B (en) 2010-04-28
EP3288027A1 (en) 2018-02-28
ES2966657T3 (es) 2024-04-23
EP3848928B1 (en) 2023-03-15
AU2007308415B2 (en) 2010-08-26
EP4207189B1 (en) 2023-11-22
HK1119824A1 (en) 2009-03-13
WO2008049590A1 (en) 2008-05-02
AU2007308416A1 (en) 2008-05-02
EP1994530A1 (en) 2008-11-26
EP2109098A2 (en) 2009-10-14
DE602007001460D1 (de) 2009-08-13
NO341567B1 (no) 2017-12-04
IL193786A (en) 2011-11-30
KR20090058029A (ko) 2009-06-08
CN101606194B (zh) 2012-06-27
EP4300824A3 (en) 2024-03-20
HUE068020T2 (hu) 2024-12-28
RU2009119456A (ru) 2010-11-27
EP4300824B1 (en) 2024-08-28
CN101606194A (zh) 2009-12-16
KR100957711B1 (ko) 2010-05-12
EP4325724A3 (en) 2024-04-17
RU2411645C2 (ru) 2011-02-10
PL4207189T3 (pl) 2024-04-08
MY148715A (en) 2013-05-31
USRE50054E1 (en) 2024-07-23
EP4325723A3 (en) 2024-04-17
NO342691B1 (no) 2018-07-09
US20130238343A1 (en) 2013-09-12
JP2010507820A (ja) 2010-03-11
US20090319283A1 (en) 2009-12-24
ES2947516T3 (es) 2023-08-10
ES2996584T3 (en) 2025-02-12
JP4936569B2 (ja) 2012-05-23
CA2667505A1 (en) 2008-05-02
HUE068021T2 (hu) 2024-12-28
PL4300825T3 (pl) 2024-11-04
EP4325724C0 (en) 2024-08-28
CN101405791B (zh) 2012-01-11
AU2007308415A1 (en) 2008-05-02

Similar Documents

Publication Publication Date Title
NO20091951L (no) Apparat og fremgangsmate for a generere audio subbandverdier, samt apparat fog fremgangsmate for a generere audioutvalg i tidsdomene
EP2111617A4 (en) METHOD AND DEVICES FOR CODING AND DECODING OBJECT BASED AUDIO SIGNALS
TW200632869A (en) Method for discontinuous transmission and accurate reproduction of background noise information
NO20065383L (no) Generering av kontrollsignal for flerkanals frekvensgeneratorer og flerkanals frekvensgenerering.
NO20052064L (no) Prosessering av seismiske data
NO20061595L (no) Metode og apparat for adaptiv over/under kombinasjon av seismiske data
WO2007149695A3 (en) Predictive frame dropping to enhance quality of service in streaming data
NO20065135L (no) Apparat og fremgangsmate for a akkustisk bestemme fluidegenskaper samtidig med provetaking
NO20082166L (no) Fremgangsmate og apparat for utnyttelse av tidsdelt multippel bolgeform sending
GB2453293A (en) System and method for optical analysis
DE602007008845D1 (de) Verfahren, Vorrichtung, Testgerät und Programm zum Testen von Multimediakommunikationsgeräten und -software
TW200719617A (en) Testing method and apparatus for a transmission and reception system
SG146605A1 (en) System and method of determining data latency over a network
DK1890507T3 (da) System, mobilkommunikationsapparat og fremgangsmåde til aftestning af modtageregenskaber
NO20072885L (no) Fremgangsmate og apparat for a redusere prosesseringsraten til en chipnivautjevningsmottager
TW200737805A (en) Method and device for channel response determination
EP1816803A4 (en) TRANSMISSION PROCESS FOR A DATA FRAME AND SYSTEM THEREFOR
TW200943859A (en) Apparatus for estimating frequency offset and estimating method thereof
ATE505880T1 (de) Verfahren und kommunikationssystem zur auswahl eines übertragungsmodus für eine übermittlung von nutzdaten
DK1938496T3 (da) Fremgangsmåde og apparat til vurdering af talekvalitet
WO2008123317A1 (ja) 信号処理装置、エコーキャンセラ、信号処理方法
WO2007059080A3 (en) Transmitting content in wagering networks
EP1819098A4 (en) METHOD AND DEVICE FOR DETERMINING THE TRANSMISSION LOSS OF A COMMUNICATION CONNECTION
WO2010047805A3 (en) System for signal sample rate conversion
TW200715854A (en) Image processing apparatus, image processing method, and program