PL4307125T3 - Koncepcja wypełnienia luki między parametrycznym wielokanałowym kodowaniem audio i wielokanałowym kodowaniem matrix-surround - Google Patents

Koncepcja wypełnienia luki między parametrycznym wielokanałowym kodowaniem audio i wielokanałowym kodowaniem matrix-surround

Info

Publication number
PL4307125T3
PL4307125T3 PL23214133.3T PL23214133T PL4307125T3 PL 4307125 T3 PL4307125 T3 PL 4307125T3 PL 23214133 T PL23214133 T PL 23214133T PL 4307125 T3 PL4307125 T3 PL 4307125T3
Authority
PL
Poland
Prior art keywords
coding
channel
matrixed
bridging
concept
Prior art date
Application number
PL23214133.3T
Other languages
English (en)
Inventor
Johannes Hilpert
Christof Faller
Karsten Linzmeier
Ralph Sperschneider
Original Assignee
Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
Dolby Laboratories Licensing Corporation
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=36873210&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=PL4307125(T3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V., Dolby Laboratories Licensing Corporation filed Critical Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
Publication of PL4307125T3 publication Critical patent/PL4307125T3/pl

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
    • G10L19/008—Multichannel audio signal coding or decoding using interchannel correlation to reduce redundancy, e.g. joint-stereo, intensity-coding or matrixing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R5/00—Stereophonic arrangements
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F12/00—Accessing, addressing or allocating within memory systems or architectures
    • G06F12/02—Addressing or allocation; Relocation
    • G06F12/08—Addressing or allocation; Relocation in hierarchically structured memory systems, e.g. virtual memory systems
    • G06F12/0802—Addressing of a memory level in which the access to the desired data or data block requires associative addressing means, e.g. caches
    • G06F12/0806—Multiuser, multiprocessor or multiprocessing cache systems
    • G06F12/0815—Cache consistency protocols
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S3/00—Systems employing more than two channels, e.g. quadraphonic
    • H04S3/02—Systems employing more than two channels, e.g. quadraphonic of the matrix type, i.e. in which input signals are combined algebraically, e.g. after having been phase shifted with respect to each other

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Mathematical Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Computational Linguistics (AREA)
  • Human Computer Interaction (AREA)
  • Health & Medical Sciences (AREA)
  • Multimedia (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Pure & Applied Mathematics (AREA)
  • Algebra (AREA)
  • General Engineering & Computer Science (AREA)
  • Stereophonic System (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Stereo-Broadcasting Methods (AREA)
PL23214133.3T 2005-07-19 2006-06-21 Koncepcja wypełnienia luki między parametrycznym wielokanałowym kodowaniem audio i wielokanałowym kodowaniem matrix-surround PL4307125T3 (pl)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US70100105P 2005-07-19 2005-07-19
US11/323,965 US20070055510A1 (en) 2005-07-19 2005-12-29 Concept for bridging the gap between parametric multi-channel audio coding and matrixed-surround multi-channel coding

Publications (1)

Publication Number Publication Date
PL4307125T3 true PL4307125T3 (pl) 2024-10-28

Family

ID=36873210

Family Applications (6)

Application Number Title Priority Date Filing Date
PL23180543.3T PL4235440T3 (pl) 2005-07-19 2006-06-21 Koncepcja wypełnienia luki między parametrycznym wielokanałowym kodowaniem audio i wielokanałowym kodowaniem matrix-surround
PL23214134.1T PL4307126T3 (pl) 2005-07-19 2006-06-21 Koncepcja wypełnienia luki między parametrycznym wielokanałowym kodowaniem audio i wielokanałowym kodowaniem matrix-surround
PL18180076.4T PL3404656T3 (pl) 2005-07-19 2006-06-21 Koncepcja wypełnienia luki między parametrycznym wielokanałowym kodowaniem audio i wielokanałowym kodowaniem matrix-surround
PL23214133.3T PL4307125T3 (pl) 2005-07-19 2006-06-21 Koncepcja wypełnienia luki między parametrycznym wielokanałowym kodowaniem audio i wielokanałowym kodowaniem matrix-surround
PL23214132.5T PL4307124T3 (pl) 2005-07-19 2006-06-21 Koncepcja wypełnienia luki między parametrycznym wielokanałowym kodowaniem audio i wielokanałowym kodowaniem matrix-surround
PL06743182T PL1908056T3 (pl) 2005-07-19 2006-06-21 Koncepcja wypełnienia luki między parametrycznym wielokanałowym kodowaniem audio i wielokanałowym kodowaniem matrix-surround

Family Applications Before (3)

Application Number Title Priority Date Filing Date
PL23180543.3T PL4235440T3 (pl) 2005-07-19 2006-06-21 Koncepcja wypełnienia luki między parametrycznym wielokanałowym kodowaniem audio i wielokanałowym kodowaniem matrix-surround
PL23214134.1T PL4307126T3 (pl) 2005-07-19 2006-06-21 Koncepcja wypełnienia luki między parametrycznym wielokanałowym kodowaniem audio i wielokanałowym kodowaniem matrix-surround
PL18180076.4T PL3404656T3 (pl) 2005-07-19 2006-06-21 Koncepcja wypełnienia luki między parametrycznym wielokanałowym kodowaniem audio i wielokanałowym kodowaniem matrix-surround

Family Applications After (2)

Application Number Title Priority Date Filing Date
PL23214132.5T PL4307124T3 (pl) 2005-07-19 2006-06-21 Koncepcja wypełnienia luki między parametrycznym wielokanałowym kodowaniem audio i wielokanałowym kodowaniem matrix-surround
PL06743182T PL1908056T3 (pl) 2005-07-19 2006-06-21 Koncepcja wypełnienia luki między parametrycznym wielokanałowym kodowaniem audio i wielokanałowym kodowaniem matrix-surround

Country Status (21)

Country Link
US (2) US20070055510A1 (pl)
EP (6) EP4307124B1 (pl)
JP (1) JP5265358B2 (pl)
KR (1) KR100946688B1 (pl)
CN (1) CN101223578B (pl)
AU (1) AU2006272127B2 (pl)
BR (1) BRPI0616019B1 (pl)
CA (1) CA2614384C (pl)
DK (5) DK4307126T3 (pl)
ES (6) ES2995054T3 (pl)
FI (5) FI3404656T3 (pl)
HU (5) HUE069874T2 (pl)
IL (1) IL188425A0 (pl)
MX (1) MX2008000828A (pl)
MY (1) MY149198A (pl)
NO (1) NO342863B1 (pl)
PL (6) PL4235440T3 (pl)
PT (6) PT3404656T (pl)
RU (1) RU2382418C2 (pl)
TW (1) TWI339028B (pl)
WO (1) WO2007009548A1 (pl)

Families Citing this family (52)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI393121B (zh) * 2004-08-25 2013-04-11 杜比實驗室特許公司 處理一組n個聲音信號之方法與裝置及與其相關聯之電腦程式
CN101151659B (zh) * 2005-03-30 2014-02-05 皇家飞利浦电子股份有限公司 多通道音频编码器、设备、方法及其解码器、设备和方法
US8160888B2 (en) * 2005-07-19 2012-04-17 Koninklijke Philips Electronics N.V Generation of multi-channel audio signals
JP5108768B2 (ja) 2005-08-30 2012-12-26 エルジー エレクトロニクス インコーポレイティド オーディオ信号をエンコーディング及びデコーディングするための装置とその方法
KR100857106B1 (ko) * 2005-09-14 2008-09-08 엘지전자 주식회사 오디오 신호의 디코딩 방법 및 장치
US8073703B2 (en) * 2005-10-07 2011-12-06 Panasonic Corporation Acoustic signal processing apparatus and acoustic signal processing method
KR101218776B1 (ko) * 2006-01-11 2013-01-18 삼성전자주식회사 다운믹스된 신호로부터 멀티채널 신호 생성방법 및 그 기록매체
KR100773560B1 (ko) * 2006-03-06 2007-11-05 삼성전자주식회사 스테레오 신호 생성 방법 및 장치
EP1999745B1 (en) * 2006-03-30 2016-08-31 LG Electronics Inc. Apparatuses and methods for processing an audio signal
US7873424B1 (en) * 2006-04-13 2011-01-18 Honda Motor Co., Ltd. System and method for optimizing digital audio playback
WO2008046531A1 (en) * 2006-10-16 2008-04-24 Dolby Sweden Ab Enhanced coding and parameter representation of multichannel downmixed object coding
MY144273A (en) * 2006-10-16 2011-08-29 Fraunhofer Ges Forschung Apparatus and method for multi-chennel parameter transformation
EP2122613B1 (en) * 2006-12-07 2019-01-30 LG Electronics Inc. A method and an apparatus for processing an audio signal
ATE547786T1 (de) * 2007-03-30 2012-03-15 Panasonic Corp Codierungseinrichtung und codierungsverfahren
KR101464977B1 (ko) * 2007-10-01 2014-11-25 삼성전자주식회사 메모리 관리 방법, 및 멀티 채널 데이터의 복호화 방법 및장치
JP4992979B2 (ja) 2007-11-06 2012-08-08 富士通株式会社 多地点間音声通話装置
US8548615B2 (en) * 2007-11-27 2013-10-01 Nokia Corporation Encoder
KR20100095586A (ko) 2008-01-01 2010-08-31 엘지전자 주식회사 신호 처리 방법 및 장치
JP5202090B2 (ja) * 2008-05-07 2013-06-05 アルパイン株式会社 サラウンド生成装置
WO2009135532A1 (en) * 2008-05-09 2009-11-12 Nokia Corporation An apparatus
KR101325335B1 (ko) 2008-07-11 2013-11-08 프라운호퍼-게젤샤프트 추르 푀르데룽 데어 안제반텐 포르슝 에 파우 오디오 샘플 인코드 및 디코드용 오디오 인코더 및 디코더
EP2175670A1 (en) * 2008-10-07 2010-04-14 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Binaural rendering of a multi-channel audio signal
KR101342425B1 (ko) * 2008-12-19 2013-12-17 돌비 인터네셔널 에이비 다중-채널의 다운믹싱된 오디오 입력 신호에 리버브를 적용하기 위한 방법 및 다중-채널의 다운믹싱된 오디오 입력 신호에 리버브를 적용하도록 구성된 리버브레이터
EP2214161A1 (en) 2009-01-28 2010-08-04 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus, method and computer program for upmixing a downmix audio signal
AU2010233863B2 (en) * 2009-04-08 2013-09-26 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Apparatus, method and computer program for upmixing a downmix audio signal using a phase value smoothing
TWI444989B (zh) * 2010-01-22 2014-07-11 Dolby Lab Licensing Corp 針對改良多通道上混使用多通道解相關之技術
JP5604933B2 (ja) * 2010-03-30 2014-10-15 富士通株式会社 ダウンミクス装置およびダウンミクス方法
JP5533502B2 (ja) * 2010-09-28 2014-06-25 富士通株式会社 オーディオ符号化装置、オーディオ符号化方法及びオーディオ符号化用コンピュータプログラム
CN102802112B (zh) * 2011-05-24 2014-08-13 鸿富锦精密工业（深圳）有限公司 具有音频文件格式转换功能的电子装置
US9183842B2 (en) * 2011-11-08 2015-11-10 Vixs Systems Inc. Transcoder with dynamic audio channel changing
US9761229B2 (en) 2012-07-20 2017-09-12 Qualcomm Incorporated Systems, methods, apparatus, and computer-readable media for audio object clustering
US9479886B2 (en) 2012-07-20 2016-10-25 Qualcomm Incorporated Scalable downmix design with feedback for object-based surround codec
CA3210225A1 (en) * 2012-11-15 2014-05-22 Ntt Docomo, Inc. Audio coding device, audio coding method, audio coding program, audio decoding device, audio decoding method, and audio decoding program
WO2014108738A1 (en) 2013-01-08 2014-07-17 Nokia Corporation Audio signal multi-channel parameter encoder
CN109346101B (zh) * 2013-01-29 2024-05-24 弗劳恩霍夫应用研究促进协会 产生频率增强音频信号的译码器和产生编码信号的编码器
CN122531400A (zh) 2013-02-21 2026-08-07 杜比国际公司 用于参数化多声道编码的方法
WO2014171791A1 (ko) 2013-04-19 2014-10-23 한국전자통신연구원 다채널 오디오 신호 처리 장치 및 방법
CA3017077C (en) * 2013-05-24 2021-08-17 Dolby International Ab Coding of audio scenes
MY199032A (en) 2013-05-24 2023-10-10 Dolby Int Ab Audio encoder and decoder
WO2014191793A1 (en) * 2013-05-28 2014-12-04 Nokia Corporation Audio signal encoder
EP2830053A1 (en) 2013-07-22 2015-01-28 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Multi-channel audio decoder, multi-channel audio encoder, methods and computer program using a residual-signal-based adjustment of a contribution of a decorrelated signal
US9319819B2 (en) * 2013-07-25 2016-04-19 Etri Binaural rendering method and apparatus for decoding multi channel audio
EP3561809B1 (en) 2013-09-12 2023-11-22 Dolby International AB Method for decoding and decoder.
WO2015104447A1 (en) 2014-01-13 2015-07-16 Nokia Technologies Oy Multi-channel audio signal classifier
WO2015173422A1 (de) * 2014-05-15 2015-11-19 Stormingswiss Sàrl Verfahren und vorrichtung zur residualfreien erzeugung eines upmix aus einem downmix
CN110970041B (zh) * 2014-07-01 2023-10-20 韩国电子通信研究院 处理多信道音频信号的方法和装置
ES2727462T3 (es) * 2016-01-22 2019-10-16 Fraunhofer Ges Forschung Aparatos y procedimientos para la codificación o decodificación de una señal multicanal de audio mediante el uso de repetición de muestreo de dominio espectral
DE102016214923B4 (de) 2016-08-11 2023-08-17 Continental Reifen Deutschland Gmbh Schwefelvernetzbare Kautschukmischung und deren Verwendung
EP3669556B1 (en) * 2017-10-16 2022-06-08 Sony Europe B.V. Audio processing
PL3724876T3 (pl) * 2018-02-01 2022-11-07 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Enkoder sceny audio, dekoder sceny audio i powiązane sposoby wykorzystujące analizę przestrzenną hybrydowego enkodera/dekodera
TWI792006B (zh) * 2019-06-14 2023-02-11 弗勞恩霍夫爾協會 音訊合成器、訊號產生方法及儲存單元
AU2021286636A1 (en) 2020-06-11 2023-01-19 Dolby Laboratories Licensing Corporation Encoding of multi-channel audio signals comprising downmixing of a primary and two or more scaled non-primary input channels

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4799260A (en) * 1985-03-07 1989-01-17 Dolby Laboratories Licensing Corporation Variable matrix decoder
KR960012475B1 (ko) * 1994-01-18 1996-09-20 대우전자 주식회사 디지탈 오디오 부호화장치의 채널별 비트 할당 장치
US5912976A (en) * 1996-11-07 1999-06-15 Srs Labs, Inc. Multi-channel audio enhancement system for use in recording and playback and methods for providing same
DE19900961A1 (de) 1999-01-13 2000-07-20 Thomson Brandt Gmbh Verfahren und Vorrichtung zur Wiedergabe von Mehrkanaltonsignalen
TW510143B (en) * 1999-12-03 2002-11-11 Dolby Lab Licensing Corp Method for deriving at least three audio signals from two input audio signals
JP2001339311A (ja) * 2000-05-26 2001-12-07 Yamaha Corp オーディオ信号圧縮回路および伸長回路
TW576122B (en) * 2000-08-31 2004-02-11 Dolby Lab Licensing Corp Method for apparatus for audio matrix decoding
JP2002311994A (ja) * 2001-04-18 2002-10-25 Matsushita Electric Ind Co Ltd ステレオオーディオ信号符号化方法及び装置
US7292901B2 (en) * 2002-06-24 2007-11-06 Agere Systems Inc. Hybrid multi-channel/cue coding/decoding of audio signals
US7006636B2 (en) * 2002-05-24 2006-02-28 Agere Systems Inc. Coherence-based audio coding and synthesis
US7644003B2 (en) * 2001-05-04 2010-01-05 Agere Systems Inc. Cue-based audio coding/decoding
SE0202159D0 (sv) * 2001-07-10 2002-07-09 Coding Technologies Sweden Ab Efficientand scalable parametric stereo coding for low bitrate applications
WO2003090207A1 (en) 2002-04-22 2003-10-30 Koninklijke Philips Electronics N.V. Parametric multi-channel audio representation
ATE377339T1 (de) 2002-07-12 2007-11-15 Koninkl Philips Electronics Nv Audio-kodierung
US7542896B2 (en) * 2002-07-16 2009-06-02 Koninklijke Philips Electronics N.V. Audio coding/decoding with spatial parameters and non-uniform segmentation for transients
JP2004252068A (ja) * 2003-02-19 2004-09-09 Matsushita Electric Ind Co Ltd デジタルオーディオ信号の符号化装置及び方法
JP2006521577A (ja) * 2003-03-24 2006-09-21 コーニンクレッカ　フィリップス　エレクトロニクス　エヌ　ヴィ マルチチャネル信号を表す主信号と副信号の符号化
US7318035B2 (en) * 2003-05-08 2008-01-08 Dolby Laboratories Licensing Corporation Audio coding systems and methods using spectral component coupling and spectral component regeneration
US7394903B2 (en) 2004-01-20 2008-07-01 Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E.V. Apparatus and method for constructing a multi-channel output signal or for generating a downmix signal
EP1749296B1 (en) * 2004-05-28 2010-07-14 Nokia Corporation Multichannel audio extension
US7751572B2 (en) * 2005-04-15 2010-07-06 Dolby International Ab Adaptive residual audio coding
AU2006266579B2 (en) * 2005-06-30 2009-10-22 Lg Electronics Inc. Method and apparatus for encoding and decoding an audio signal

Also Published As

Publication number Publication date
NO20080850L (no) 2008-04-17
IL188425A0 (en) 2008-11-03
ES2952871T3 (es) 2023-11-06
FI4307126T3 (fi) 2024-08-27
ES2995054T3 (en) 2025-02-05
FI4235440T3 (fi) 2024-12-30
PT4307126T (pt) 2024-09-26
RU2382418C2 (ru) 2010-02-20
FI4307124T3 (fi) 2024-08-27
KR100946688B1 (ko) 2010-03-12
EP4307125B1 (en) 2024-08-07
EP4307124B1 (en) 2024-08-07
EP4307124A3 (en) 2024-03-27
EP1908056A1 (en) 2008-04-09
HUE068233T2 (hu) 2024-12-28
BRPI0616019B1 (pt) 2019-11-19
EP4307126B1 (en) 2024-07-31
DK3404656T3 (da) 2023-09-25
AU2006272127A1 (en) 2007-01-25
CN101223578A (zh) 2008-07-16
PT3404656T (pt) 2023-10-09
US20070019813A1 (en) 2007-01-25
ES3002034T3 (en) 2025-03-06
EP4307125A3 (en) 2024-03-27
EP4307124A2 (en) 2024-01-17
EP4235440A3 (en) 2023-10-25
EP3404656B1 (en) 2023-06-28
US20070055510A1 (en) 2007-03-08
BRPI0616019A2 (pt) 2011-06-07
PL4307126T3 (pl) 2024-10-28
HUE069874T2 (hu) 2025-04-28
ES2690278T3 (es) 2018-11-20
PL1908056T3 (pl) 2019-01-31
MY149198A (en) 2013-07-31
HUE068230T2 (hu) 2024-12-28
EP3404656A1 (en) 2018-11-21
EP4307125A2 (en) 2024-01-17
PL4235440T3 (pl) 2025-03-10
CA2614384A1 (en) 2007-01-25
PL4307124T3 (pl) 2024-10-28
RU2008106225A (ru) 2009-08-27
PL3404656T3 (pl) 2024-06-17
HUE067925T2 (hu) 2024-11-28
MX2008000828A (es) 2008-03-19
EP4307126A3 (en) 2024-03-27
EP4235440B1 (en) 2024-11-27
CA2614384C (en) 2012-07-24
JP5265358B2 (ja) 2013-08-14
AU2006272127B2 (en) 2010-02-04
EP1908056B1 (en) 2018-08-01
FI4307125T3 (fi) 2024-08-27
EP4307126A2 (en) 2024-01-17
TW200723712A (en) 2007-06-16
DK4235440T3 (da) 2025-01-20
PT1908056T (pt) 2018-11-07
DK4307126T3 (da) 2024-11-04
TWI339028B (en) 2011-03-11
FI3404656T3 (fi) 2023-09-25
ES2995111T3 (en) 2025-02-06
HUE064455T2 (hu) 2024-03-28
CN101223578B (zh) 2011-12-14
ES2995055T3 (en) 2025-02-05
NO342863B1 (no) 2018-08-20
PT4235440T (pt) 2025-01-07
EP4235440A2 (en) 2023-08-30
US8180061B2 (en) 2012-05-15
WO2007009548A1 (en) 2007-01-25
PT4307125T (pt) 2024-09-26
JP2009501948A (ja) 2009-01-22
DK4307125T3 (da) 2024-11-04
PT4307124T (pt) 2024-09-05
KR20080032146A (ko) 2008-04-14
DK4307124T3 (da) 2024-11-04

Similar Documents

Publication Publication Date Title
HUE069874T2 (hu) Koncepció parametrikus többcsatornás audiokódolás és mátrixolt-térhatású többcsatornás kódolás közötti rés áthidalására
PL1829026T3 (pl) Zwarte informacje pomocnicze dla parametrycznego kodowania przestrzennego audio
ZA200803804B (en) Audio system
GB2443990B (en) Audio device
GB2426168B (en) Audio processing
EP1850755A4 (en) DEVICES, SYSTEMS AND METHOD FOR PLAQUE RECOGNITION
EP1766952A4 (en) AUDIO CUTTING
GB0522051D0 (en) Audio processing
GB2431839B (en) Audio processing
GB2426169B (en) Audio processing
EP1906697A4 (en) AUDIO SETUP
GB0517627D0 (en) Bus-bar and connector
GB0522054D0 (en) Audio processing
GB0617704D0 (en) Listening apparatus
GB0523222D0 (en) Audio tape measure
GB2425675B (en) Audio system
GB0523226D0 (en) Bridging system
GB0512019D0 (en) Loudspeaker system and loudspeaker therefor
HK1093257A (en) Audio coding
GB0512245D0 (en) Audio mixer with headphone
GB0512602D0 (en) Audio visual (demographic) informatics - captioning system
GB0612659D0 (en) Audio equipment
GB2444190B (en) Audio device
GB2445485B (en) Audio device
AU2005902192A0 (en) Alert indicator for audio devices and the like