AR080477A1 - Aparato y metodo para procesar una senal de audio entrada utilizando bancos de filtro en cascada - Google Patents

Aparato y metodo para procesar una senal de audio entrada utilizando bancos de filtro en cascada

Info

Publication number
AR080477A1
AR080477A1 ARP110100724A ARP110100724A AR080477A1 AR 080477 A1 AR080477 A1 AR 080477A1 AR P110100724 A ARP110100724 A AR P110100724A AR P110100724 A ARP110100724 A AR P110100724A AR 080477 A1 AR080477 A1 AR 080477A1
Authority
AR
Argentina
Prior art keywords
audio signal
filter bank
processing
channels
cascada
Prior art date
Application number
ARP110100724A
Other languages
English (en)
Original Assignee
Dten Forschung E V Fraunhofer Ges Zur Foerderung Der Angewan
Dolby Int Ab
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 Dten Forschung E V Fraunhofer Ges Zur Foerderung Der Angewan, Dolby Int Ab filed Critical Dten Forschung E V Fraunhofer Ges Zur Foerderung Der Angewan
Publication of AR080477A1 publication Critical patent/AR080477A1/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
    • 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
    • G10L21/0208—Noise filtering
    • G10L21/0216—Noise filtering characterised by the method used for estimating noise
    • G10L21/0232—Processing in the frequency domain
    • 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
    • G10L19/008—Multichannel audio signal coding or decoding using interchannel correlation to reduce redundancy, e.g. joint-stereo, intensity-coding or matrixing
    • 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
    • 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
    • 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
    • G10L21/04—Time compression or expansion

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Signal Processing (AREA)
  • Computational Linguistics (AREA)
  • Quality & Reliability (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Mathematical Physics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Stereophonic System (AREA)
  • Networks Using Active Elements (AREA)
  • Auxiliary Devices For Music (AREA)

Abstract

Un aparato para procesar una senal de audio de entrada (2300) se basa en una cascada de bancos de filtros, cascada que comprende un banco de filtros de síntesis (2304) para sintetizar una senal de audio intermedia (2306) a partir de la senal de audio de entrada (2300), donde la senal de audio de entrada está representada por una pluralidad de senales de primera subbanda (2303) generadas por un banco de filtros de análisis (2302), donde el numero de canales de bancos de filtros del banco de filtros de síntesis (2304) es menor que un numero de canales del banco de filtros de análisis (2302). El aparato comprende además un banco de filtros de análisis adicional (2307) para generar una pluralidad de senales de segunda subbanda (2308) de la senal de audio intermedia (2306), donde el banco de filtros adicional tiene un numero de canales que difiere del numero de canales del banco de filtros síntesis (2304), por lo que la frecuencia de muestreo de una senal de subbanda de la pluralidad de senales de segunda subbanda (2308) es diferente de la frecuencia de muestreo de una primera senal de subbanda de la pluralidad de senales de primera subbanda (2303).
ARP110100724A 2010-03-09 2011-03-09 Aparato y metodo para procesar una senal de audio entrada utilizando bancos de filtro en cascada AR080477A1 (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US31212710P 2010-03-09 2010-03-09
PCT/EP2011/053315 WO2011110500A1 (en) 2010-03-09 2011-03-04 Apparatus and method for processing an input audio signal using cascaded filterbanks

Publications (1)

Publication Number Publication Date
AR080477A1 true AR080477A1 (es) 2012-04-11

Family

ID=43987731

Family Applications (2)

Application Number Title Priority Date Filing Date
ARP110100723A AR080476A1 (es) 2010-03-09 2011-03-09 Aparato y metodo para procesar una senal de audio usando alineacion de borde de patching
ARP110100724A AR080477A1 (es) 2010-03-09 2011-03-09 Aparato y metodo para procesar una senal de audio entrada utilizando bancos de filtro en cascada

Family Applications Before (1)

Application Number Title Priority Date Filing Date
ARP110100723A AR080476A1 (es) 2010-03-09 2011-03-09 Aparato y metodo para procesar una senal de audio usando alineacion de borde de patching

Country Status (18)

Country Link
US (8) US9305557B2 (es)
EP (6) EP2545553B1 (es)
JP (2) JP5523589B2 (es)
KR (2) KR101425154B1 (es)
CN (2) CN102939628B (es)
AR (2) AR080476A1 (es)
AU (2) AU2011226211B2 (es)
BR (5) BR122021014305B1 (es)
CA (2) CA2792452C (es)
ES (4) ES2935637T3 (es)
HU (1) HUE070311T2 (es)
MX (2) MX2012010415A (es)
MY (1) MY154204A (es)
PL (4) PL2545553T3 (es)
RU (1) RU2586846C2 (es)
SG (1) SG183967A1 (es)
TW (2) TWI446337B (es)
WO (2) WO2011110499A1 (es)

Families Citing this family (60)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9026236B2 (en) * 2009-10-21 2015-05-05 Panasonic Intellectual Property Corporation Of America Audio signal processing apparatus, audio coding apparatus, and audio decoding apparatus
EP2362375A1 (en) * 2010-02-26 2011-08-31 Fraunhofer-Gesellschaft zur Förderung der Angewandten Forschung e.V. Apparatus and method for modifying an audio signal using harmonic locking
CA2792452C (en) * 2010-03-09 2018-01-16 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Apparatus and method for processing an input audio signal using cascaded filterbanks
JP5850216B2 (ja) * 2010-04-13 2016-02-03 ソニー株式会社 信号処理装置および方法、符号化装置および方法、復号装置および方法、並びにプログラム
HUE028738T2 (en) 2010-06-09 2017-01-30 Panasonic Ip Corp America Bandwidth Extension Procedure, Bandwidth Extension Device, Program, Integrated Circuit, and Audio Decoder
US8958510B1 (en) * 2010-06-10 2015-02-17 Fredric J. Harris Selectable bandwidth filter
JP6075743B2 (ja) 2010-08-03 2017-02-08 ソニー株式会社 信号処理装置および方法、並びにプログラム
IL313284B2 (en) * 2010-09-16 2025-05-01 Dolby Int Ab Method and system for cross product enhanced subband block based harmonic transposition
US8620646B2 (en) * 2011-08-08 2013-12-31 The Intellisis Corporation System and method for tracking sound pitch across an audio signal using harmonic envelope
CN103918029B (zh) 2011-11-11 2016-01-20 杜比国际公司 使用过采样谱带复制的上采样
TWI478548B (zh) * 2012-05-09 2015-03-21 Univ Nat Pingtung Sci & Tech 對等網路串流傳輸方法
EP2709106A1 (en) 2012-09-17 2014-03-19 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for generating a bandwidth extended signal from a bandwidth limited audio signal
CN103915104B (zh) * 2012-12-31 2017-07-21 华为技术有限公司 信号带宽扩展方法和用户设备
DE112014000945B4 (de) * 2013-02-22 2021-10-28 Mitsubishi Electric Corporation Sprachbetonungsgerät
WO2014142576A1 (ko) * 2013-03-14 2014-09-18 엘지전자 주식회사 무선 통신 시스템에서 단말 간 직접 통신을 이용한 신호 수신 방법
JP6553590B2 (ja) * 2013-03-26 2019-07-31 バラット, ラックラン, ポールBARRATT, Lachlan, Paul サンプルレートを仮想的に増加させた音声フィルタ処理
US9305031B2 (en) * 2013-04-17 2016-04-05 International Business Machines Corporation Exiting windowing early for stream computing
JP6305694B2 (ja) * 2013-05-31 2018-04-04 クラリオン株式会社 信号処理装置及び信号処理方法
US9454970B2 (en) * 2013-07-03 2016-09-27 Bose Corporation Processing multichannel audio signals
EP2830063A1 (en) 2013-07-22 2015-01-28 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus, method and computer program for decoding an encoded audio signal
TWI584567B (zh) * 2013-08-12 2017-05-21 Ｉｄｔ歐洲有限公司 功率轉換器及用於功率轉換器的控制方法
WO2015027327A1 (en) * 2013-08-28 2015-03-05 Mixgenius Inc. System and method for performing automatic audio production using semantic data
TWI557726B (zh) * 2013-08-29 2016-11-11 杜比國際公司 用於決定音頻信號的高頻帶信號的主比例因子頻帶表之系統和方法
WO2015041476A1 (ko) * 2013-09-17 2015-03-26 주식회사 윌러스표준기술연구소 오디오 신호 처리 방법 및 장치
US10083708B2 (en) 2013-10-11 2018-09-25 Qualcomm Incorporated Estimation of mixing factors to generate high-band excitation signal
WO2015060654A1 (ko) 2013-10-22 2015-04-30 한국전자통신연구원 오디오 신호의 필터 생성 방법 및 이를 위한 파라메터화 장치
CN104681034A (zh) * 2013-11-27 2015-06-03 杜比实验室特许公司 音频信号处理
CN105745706B (zh) * 2013-11-29 2019-09-24 索尼公司 用于扩展频带的装置、方法和程序
US9832589B2 (en) 2013-12-23 2017-11-28 Wilus Institute Of Standards And Technology Inc. Method for generating filter for audio signal, and parameterization device for same
RU2764260C2 (ru) 2013-12-27 2022-01-14 Сони Корпорейшн Устройство и способ декодирования
CN108600935B (zh) 2014-03-19 2020-11-03 韦勒斯标准与技术协会公司 音频信号处理方法和设备
KR101856127B1 (ko) 2014-04-02 2018-05-09 주식회사 윌러스표준기술연구소 오디오 신호 처리 방법 및 장치
US9306606B2 (en) * 2014-06-10 2016-04-05 The Boeing Company Nonlinear filtering using polyphase filter banks
EP2963648A1 (en) 2014-07-01 2016-01-06 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio processor and method for processing an audio signal using vertical phase correction
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
KR101523559B1 (ko) * 2014-11-24 2015-05-28 가락전자 주식회사 토폴로지를 이용한 오디오 스트림 형성 장치 및 방법
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
TWI890652B (zh) 2015-03-13 2025-07-11 瑞典商杜比國際公司 音訊處理單元、用於將經編碼的音訊位元流解碼之方法以及非暫態電腦可讀媒體
TWI693595B (zh) * 2015-03-13 2020-05-11 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
US10129659B2 (en) 2015-05-08 2018-11-13 Doly International AB Dialog enhancement complemented with frequency transposition
KR101661713B1 (ko) * 2015-05-28 2016-10-04 제주대학교 산학협력단 파라메트릭 어레이 응용을 위한 변조 방법 및 장치
US9514766B1 (en) * 2015-07-08 2016-12-06 Continental Automotive Systems, Inc. Computationally efficient data rate mismatch compensation for telephony clocks
CN111970630B (zh) 2015-08-25 2021-11-02 杜比实验室特许公司 音频解码器和解码方法
CN108140396B (zh) * 2015-09-22 2022-11-25 皇家飞利浦有限公司 音频信号处理
CN109074813B (zh) 2015-09-25 2020-04-03 杜比实验室特许公司 处理高清晰度音频数据
EP3171362B1 (en) * 2015-11-19 2019-08-28 Harman Becker Automotive Systems GmbH Bass enhancement and separation of an audio signal into a harmonic and transient signal component
EP3182411A1 (en) 2015-12-14 2017-06-21 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for processing an encoded audio signal
US10157621B2 (en) * 2016-03-18 2018-12-18 Qualcomm Incorporated Audio signal decoding
US10825467B2 (en) * 2017-04-21 2020-11-03 Qualcomm Incorporated Non-harmonic speech detection and bandwidth extension in a multi-source environment
US10848363B2 (en) 2017-11-09 2020-11-24 Qualcomm Incorporated Frequency division multiplexing for mixed numerology
KR102697685B1 (ko) * 2017-12-19 2024-08-23 돌비 인터네셔널 에이비 통합 음성 및 오디오 디코딩 및 인코딩 qmf 기반 고조파 트랜스포저 개선을 위한 방법, 장치 및 시스템
TW202546816A (zh) 2018-01-26 2025-12-01 瑞典商都比國際公司 用於執行一音訊信號之高頻重建之方法、音訊處理單元及非暫時性電腦可讀媒體
WO2019145955A1 (en) 2018-01-26 2019-08-01 Hadasit Medical Research Services & Development Limited Non-metallic magnetic resonance contrast agent
BR112020021832A2 (pt) 2018-04-25 2021-02-23 Dolby International Ab integração de técnicas de reconstrução de alta frequência
IL324371A (en) * 2018-04-25 2026-01-01 Dolby Int Ab Integration of high frequency reconstruction techniques with reduced post-processing delay
WO2021154211A1 (en) * 2020-01-28 2021-08-05 Hewlett-Packard Development Company, L.P. Multi-channel decomposition and harmonic synthesis
CN111768793B (zh) * 2020-07-11 2023-09-01 北京百瑞互联技术有限公司 一种lc3音频编码器编码优化方法、系统、存储介质
TWI834408B (zh) * 2022-12-02 2024-03-01 元智大學 兩階濾波器
WO2025201625A1 (en) * 2024-03-25 2025-10-02 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Encoder and decoder

Family Cites Families (46)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55107313A (en) 1979-02-08 1980-08-18 Pioneer Electronic Corp Adjuster for audio quality
US5455888A (en) 1992-12-04 1995-10-03 Northern Telecom Limited Speech bandwidth extension method and apparatus
US6766300B1 (en) 1996-11-07 2004-07-20 Creative Technology Ltd. Method and apparatus for transient detection and non-distortion time scaling
SE512719C2 (sv) * 1997-06-10 2000-05-02 Lars Gustaf Liljeryd En metod och anordning för reduktion av dataflöde baserad på harmonisk bandbreddsexpansion
US6549884B1 (en) 1999-09-21 2003-04-15 Creative Technology Ltd. Phase-vocoder pitch-shifting
SE0001926D0 (sv) * 2000-05-23 2000-05-23 Lars Liljeryd Improved spectral translation/folding in the subband domain
CA2443837C (en) 2001-04-13 2012-06-19 Dolby Laboratories Licensing Corporation High quality time-scaling and pitch-scaling of audio signals
AU2002318813B2 (en) 2001-07-13 2004-04-29 Matsushita Electric Industrial Co., Ltd. Audio signal decoding device and audio signal encoding device
US6895375B2 (en) 2001-10-04 2005-05-17 At&T Corp. System for bandwidth extension of Narrow-band speech
US20030187663A1 (en) * 2002-03-28 2003-10-02 Truman Michael Mead Broadband frequency translation for high frequency regeneration
JP4227772B2 (ja) 2002-07-19 2009-02-18 日本電気株式会社 オーディオ復号装置と復号方法およびプログラム
JP4313993B2 (ja) 2002-07-19 2009-08-12 パナソニック株式会社 オーディオ復号化装置およびオーディオ復号化方法
SE0202770D0 (sv) 2002-09-18 2002-09-18 Coding Technologies Sweden Ab Method for reduction of aliasing introduces by spectral envelope adjustment in real-valued filterbanks
KR100524065B1 (ko) * 2002-12-23 2005-10-26 삼성전자주식회사 시간-주파수 상관성을 이용한 개선된 오디오 부호화및/또는 복호화 방법과 그 장치
US7372907B2 (en) * 2003-06-09 2008-05-13 Northrop Grumman Corporation Efficient and flexible oversampled filterbank with near perfect reconstruction constraint
US20050018796A1 (en) * 2003-07-07 2005-01-27 Sande Ravindra Kumar Method of combining an analysis filter bank following a synthesis filter bank and structure therefor
US7337108B2 (en) 2003-09-10 2008-02-26 Microsoft Corporation System and method for providing high-quality stretching and compression of a digital audio signal
BRPI0415464B1 (pt) * 2003-10-23 2019-04-24 Panasonic Intellectual Property Management Co., Ltd. Aparelho e método de codificação de espectro.
JP4254479B2 (ja) 2003-10-27 2009-04-15 ヤマハ株式会社 オーディオ帯域拡張再生装置
DE102004046746B4 (de) 2004-09-27 2007-03-01 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Verfahren zum Synchronisieren von Zusatzdaten und Basisdaten
KR101187597B1 (ko) 2004-11-02 2012-10-12 돌비 인터네셔널 에이비 복소수 값 필터 뱅크들을 사용하는 오디오 신호들의 인코딩및 디코딩
CN1668058B (zh) * 2005-02-21 2011-06-15 南望信息产业集团有限公司 基于递归最小平方差的子带回声抵消器
JP4804532B2 (ja) 2005-04-15 2011-11-02 ドルビー インターナショナル アクチボラゲット 無相関信号の包絡線整形
JP2007017628A (ja) 2005-07-06 2007-01-25 Matsushita Electric Ind Co Ltd 復号化装置
US7565289B2 (en) 2005-09-30 2009-07-21 Apple Inc. Echo avoidance in audio time stretching
JP4760278B2 (ja) 2005-10-04 2011-08-31 株式会社ケンウッド 補間装置、オーディオ再生装置、補間方法および補間プログラム
ATE458361T1 (de) 2005-12-13 2010-03-15 Nxp Bv Einrichtung und verfahren zum verarbeiten eines audio-datenstroms
US7676374B2 (en) * 2006-03-28 2010-03-09 Nokia Corporation Low complexity subband-domain filtering in the case of cascaded filter banks
FR2910743B1 (fr) 2006-12-22 2009-02-20 Thales Sa Banque de filtres numeriques cascadable, et circuit de reception comportant une telle banque de filtre en cascade.
US9275648B2 (en) * 2007-12-18 2016-03-01 Lg Electronics Inc. Method and apparatus for processing audio signal using spectral data of audio signal
CN101471072B (zh) * 2007-12-27 2012-01-25 华为技术有限公司 高频重建方法、编码装置和解码装置
DE102008015702B4 (de) 2008-01-31 2010-03-11 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung und Verfahren zur Bandbreitenerweiterung eines Audiosignals
KR101230480B1 (ko) 2008-03-10 2013-02-06 프라운호퍼 게젤샤프트 쭈르 푀르데룽 데어 안겐반텐 포르슝 에. 베. 트랜지언트 이벤트를 갖는 오디오 신호를 조작하기 위한 장치 및 방법
US9147902B2 (en) 2008-07-04 2015-09-29 Guangdong Institute of Eco-Environmental and Soil Sciences Microbial fuel cell stack
RU2512090C2 (ru) * 2008-07-11 2014-04-10 Фраунхофер-Гезелльшафт Цур Фердерунг Дер Ангевандтен Форшунг Е.Ф. Устройство и способ генерирования сигнала с расширенной полосой пропускания
KR101395252B1 (ko) 2008-07-11 2014-05-15 프라운호퍼 게젤샤프트 쭈르 푀르데룽 데어 안겐반텐 포르슝 에. 베. 스펙트럼 포락선의 수를 산출하기 위한 장치 및 그 방법
WO2010003543A1 (en) 2008-07-11 2010-01-14 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for calculating bandwidth extension data using a spectral tilt controlling framing
US8831958B2 (en) * 2008-09-25 2014-09-09 Lg Electronics Inc. Method and an apparatus for a bandwidth extension using different schemes
EP2169665B1 (en) 2008-09-25 2018-05-02 LG Electronics Inc. A method and an apparatus for processing a signal
CA2989886C (en) * 2008-12-15 2020-05-05 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Audio encoder and bandwidth extension decoder
RU2493618C2 (ru) * 2009-01-28 2013-09-20 Долби Интернешнл Аб Усовершенствованное гармоническое преобразование
EP2214165A3 (en) 2009-01-30 2010-09-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus, method and computer program for manipulating an audio signal comprising a transient event
EP3998606B8 (en) * 2009-10-21 2022-12-07 Dolby International AB Oversampling in a combined transposer filter bank
US8321216B2 (en) 2010-02-23 2012-11-27 Broadcom Corporation Time-warping of audio signals for packet loss concealment avoiding audible artifacts
PT2545551T (pt) 2010-03-09 2018-01-03 Fraunhofer Ges Forschung Resposta de magnitude aperfeiçoada e alinhamento temporal de um vocoder de fase com base no método de extensão de largura de banda para sinais de áudio
CA2792452C (en) * 2010-03-09 2018-01-16 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Apparatus and method for processing an input audio signal using cascaded filterbanks

Also Published As

Publication number Publication date
EP4475124B1 (en) 2025-10-29
TW201207842A (en) 2012-02-16
TW201207841A (en) 2012-02-16
KR101425154B1 (ko) 2014-08-13
AU2011226211A1 (en) 2012-10-18
BR122021014312B1 (pt) 2022-08-16
KR20120131206A (ko) 2012-12-04
ES3010370T3 (en) 2025-04-02
EP3570278B1 (en) 2022-10-26
US20170194011A1 (en) 2017-07-06
SG183967A1 (en) 2012-10-30
ES2935637T3 (es) 2023-03-08
BR112012022740A2 (pt) 2020-10-13
CN103038819B (zh) 2015-02-18
PL4475124T3 (pl) 2026-03-16
EP4475124C0 (en) 2025-10-29
AR080476A1 (es) 2012-04-11
CN102939628A (zh) 2013-02-20
MY154204A (en) 2015-05-15
BR122021019082B1 (pt) 2022-07-26
EP2545553B1 (en) 2014-07-30
WO2011110499A1 (en) 2011-09-15
US20230074883A1 (en) 2023-03-09
JP2013525824A (ja) 2013-06-20
CA2792450A1 (en) 2011-09-15
CA2792452A1 (en) 2011-09-15
CA2792452C (en) 2018-01-16
EP4148729B1 (en) 2025-01-22
CA2792450C (en) 2016-05-31
EP4661004A3 (en) 2026-02-25
US20240135939A1 (en) 2024-04-25
US9792915B2 (en) 2017-10-17
BR112012022574B1 (pt) 2022-05-17
PL4148729T3 (pl) 2025-05-26
US20260120700A1 (en) 2026-04-30
US20200279571A1 (en) 2020-09-03
KR101414736B1 (ko) 2014-08-06
PL3570278T3 (pl) 2023-03-20
CN102939628B (zh) 2015-05-13
RU2012142732A (ru) 2014-05-27
TWI444991B (zh) 2014-07-11
US9305557B2 (en) 2016-04-05
US11495236B2 (en) 2022-11-08
ES3058766T3 (en) 2026-03-12
US11894002B2 (en) 2024-02-06
AU2011226211B2 (en) 2014-01-09
JP5523589B2 (ja) 2014-06-18
KR20120139784A (ko) 2012-12-27
AU2011226212A1 (en) 2012-10-18
CN103038819A (zh) 2013-04-10
ES2522171T3 (es) 2014-11-13
HUE070311T2 (hu) 2025-05-28
BR122021014305B1 (pt) 2022-07-05
RU2586846C2 (ru) 2016-06-10
EP4661004A2 (en) 2025-12-10
MX2012010416A (es) 2012-11-23
EP4148729A1 (en) 2023-03-15
HK1181180A1 (en) 2013-11-01
EP3570278A1 (en) 2019-11-20
AU2011226212B2 (en) 2014-03-27
US10770079B2 (en) 2020-09-08
MX2012010415A (es) 2012-10-03
US20130090933A1 (en) 2013-04-11
EP4475124A3 (en) 2025-01-15
PL2545553T3 (pl) 2015-01-30
JP5588025B2 (ja) 2014-09-10
US20180366130A1 (en) 2018-12-20
BR112012022740B1 (pt) 2021-12-21
EP4475124A2 (en) 2024-12-11
JP2013521538A (ja) 2013-06-10
EP4148729C0 (en) 2025-01-22
WO2011110500A1 (en) 2011-09-15
US12308036B2 (en) 2025-05-20
EP2545548A1 (en) 2013-01-16
US10032458B2 (en) 2018-07-24
EP2545553A1 (en) 2013-01-16
US20130051571A1 (en) 2013-02-28
BR112012022574A2 (pt) 2021-09-21
TWI446337B (zh) 2014-07-21

Similar Documents

Publication Publication Date Title
MY154204A (en) Apparatus and method for processing an imput audio signal using cascaded filterbanks
MY205240A (en) Cross product enhanced harmonic transposition
MY197452A (en) Subband block based harmonic transposition
EP4567793A3 (en) Decoding device and method, and program
BRPI0514620A (pt) método e aparelho para processar um conjunto de n sinais de áudio
GB2551916A (en) Microphone unit comprising integrated speech analysis
AR082671A1 (es) Re-muestreo de señales de salida de codificadores de audio con base qmf (filtro espejo en cuadratura)
MX2016000909A (es) Reduccion de fallas de filtro peine en mezcla descendente de canales multiples con alineacion de fase adaptativa.
DK3247135T3 (da) Advanceret behandling baseret på en kompleks-eksponentiel-moduleret filterbank
NO20091900L (no) Analysefilterbank, syntesefilterbank, koder, dekoder, blander og konferansesystem
RU2013120320A (ru) Способ и устройство для обработки аудиосигнала и для обеспечения большей детализации во времени для комбинированного унифицированного кодека речи и аудио (usac)
WO2016009444A3 (en) Music performance system and method thereof
MY164797A (en) Apparatus and method for processing a decoded audio signal in a spectral domain
ATE456847T1 (de) Klassifizierung von audiosignalen
JP2015138053A5 (es)
MY179546A (en) Method for processing speech/audio signal and apparatus
GB2574164A (en) Sound identification utilizing periodic indications
MX383427B (es) Aparato y método para mejorar una transición desde una porción de señal de audio oculta hasta una porción de señal de audio subsiguiente de una señal de audio.
WO2012020394A3 (en) Background sound removal for privacy and personalization use
Ren et al. Leveraging joint spectral and spatial learning with mamba for multichannel speech enhancement
TWI569257B (zh) 音訊處理裝置及其音訊處理方法
CY1112183T1 (el) Κωδικοποιηση πληροφοριακων σηματων
Britanak Spectral Band Replication (SBR) compression technology: Survey of the unified efficient low-cost implementations of complex exponential-and cosine-modulated QMF banks
Kim et al. Mamba2 Meets Silence: Robust Vocal Source Separation for Sparse Regions
Canadas Quesada et al. Online harmonic/percussive separation using smoothness/sparseness constraints

Legal Events

Date Code Title Description
FG Grant, registration