CA2545268C - Audio signal processing system and method - Google Patents
Audio signal processing system and method Download PDFInfo
- Publication number
- CA2545268C CA2545268C CA2545268A CA2545268A CA2545268C CA 2545268 C CA2545268 C CA 2545268C CA 2545268 A CA2545268 A CA 2545268A CA 2545268 A CA2545268 A CA 2545268A CA 2545268 C CA2545268 C CA 2545268C
- Authority
- CA
- Canada
- Prior art keywords
- filter
- output
- input
- hrtf
- reverberator
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Lifetime
Links
- 238000000034 method Methods 0.000 title claims abstract description 90
- 230000005236 sound signal Effects 0.000 title claims abstract description 37
- 238000012545 processing Methods 0.000 title claims description 19
- 230000003111 delayed effect Effects 0.000 claims abstract description 24
- 230000008569 process Effects 0.000 claims abstract description 23
- 230000006870 function Effects 0.000 claims abstract description 17
- 238000012546 transfer Methods 0.000 claims abstract description 16
- 230000035807 sensation Effects 0.000 claims abstract description 15
- 239000011159 matrix material Substances 0.000 claims description 61
- 238000002592 echocardiography Methods 0.000 claims description 27
- 238000001914 filtration Methods 0.000 claims description 26
- 230000001934 delay Effects 0.000 claims description 18
- 230000015654 memory Effects 0.000 claims description 11
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 210000005069 ears Anatomy 0.000 abstract description 6
- 230000004044 response Effects 0.000 description 10
- 238000004088 simulation Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000004590 computer program Methods 0.000 description 3
- 230000005291 magnetic effect Effects 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000037361 pathway Effects 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005316 response function Methods 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H1/00—Details of electrophonic musical instruments
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S7/00—Indicating arrangements; Control arrangements, e.g. balance control
- H04S7/30—Control circuits for electronic adaptation of the sound field
- H04S7/305—Electronic adaptation of stereophonic audio signals to reverberation of the listening space
- H04S7/306—For headphones
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H1/00—Details of electrophonic musical instruments
- G10H1/0091—Means for obtaining special acoustic effects
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H1/00—Details of electrophonic musical instruments
- G10H1/02—Means for controlling the tone frequencies, e.g. attack or decay; Means for producing special musical effects, e.g. vibratos or glissandos
- G10H1/06—Circuits for establishing the harmonic content of tones, or other arrangements for changing the tone colour
- G10H1/12—Circuits for establishing the harmonic content of tones, or other arrangements for changing the tone colour by filtering complex waveforms
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H1/00—Details of electrophonic musical instruments
- G10H1/02—Means for controlling the tone frequencies, e.g. attack or decay; Means for producing special musical effects, e.g. vibratos or glissandos
- G10H1/06—Circuits for establishing the harmonic content of tones, or other arrangements for changing the tone colour
- G10H1/12—Circuits for establishing the harmonic content of tones, or other arrangements for changing the tone colour by filtering complex waveforms
- G10H1/125—Circuits for establishing the harmonic content of tones, or other arrangements for changing the tone colour by filtering complex waveforms using a digital filter
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K15/00—Acoustics not otherwise provided for
- G10K15/08—Arrangements for producing a reverberation or echo sound
- G10K15/12—Arrangements for producing a reverberation or echo sound using electronic time-delay networks
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S1/00—Two-channel systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S5/00—Pseudo-stereo systems, e.g. in which additional channel signals are derived from monophonic signals by means of phase shifting, time delay or reverberation
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H2210/00—Aspects or methods of musical processing having intrinsic musical character, i.e. involving musical theory or musical parameters or relying on musical knowledge, as applied in electrophonic musical tools or instruments
- G10H2210/155—Musical effects
- G10H2210/265—Acoustic effect simulation, i.e. volume, spatial, resonance or reverberation effects added to a musical sound, usually by appropriate filtering or delays
- G10H2210/281—Reverberation or echo
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H2210/00—Aspects or methods of musical processing having intrinsic musical character, i.e. involving musical theory or musical parameters or relying on musical knowledge, as applied in electrophonic musical tools or instruments
- G10H2210/155—Musical effects
- G10H2210/265—Acoustic effect simulation, i.e. volume, spatial, resonance or reverberation effects added to a musical sound, usually by appropriate filtering or delays
- G10H2210/295—Spatial effects, musical uses of multiple audio channels, e.g. stereo
- G10H2210/301—Soundscape or sound field simulation, reproduction or control for musical purposes, e.g. surround or 3D sound; Granular synthesis
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S2400/00—Details of stereophonic systems covered by H04S but not provided for in its groups
- H04S2400/01—Multi-channel, i.e. more than two input channels, sound reproduction with two speakers wherein the multi-channel information is substantially preserved
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S2420/00—Techniques used stereophonic systems covered by H04S but not provided for in its groups
- H04S2420/01—Enhancing the perception of the sound image or of the spatial distribution using head related transfer functions [HRTF's] or equivalents thereof, e.g. interaural time difference [ITD] or interaural level difference [ILD]
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Stereophonic System (AREA)
- Stereophonic Arrangements (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US51978603P | 2003-11-12 | 2003-11-12 | |
| US60/519,786 | 2003-11-12 | ||
| PCT/AU2004/001479 WO2005048653A1 (en) | 2003-11-12 | 2004-10-27 | Audio signal processing system and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2545268A1 CA2545268A1 (en) | 2005-05-26 |
| CA2545268C true CA2545268C (en) | 2015-04-28 |
Family
ID=34590443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2545268A Expired - Lifetime CA2545268C (en) | 2003-11-12 | 2004-10-27 | Audio signal processing system and method |
Country Status (12)
| Country | Link |
|---|---|
| US (1) | US7949141B2 (https=) |
| EP (1) | EP1685743B1 (https=) |
| JP (2) | JP5084264B2 (https=) |
| KR (1) | KR101184641B1 (https=) |
| CN (1) | CN1879450B (https=) |
| AU (1) | AU2004310176B2 (https=) |
| CA (1) | CA2545268C (https=) |
| DK (1) | DK1685743T3 (https=) |
| ES (1) | ES2404512T3 (https=) |
| IL (1) | IL175272A (https=) |
| PL (1) | PL1685743T3 (https=) |
| WO (1) | WO2005048653A1 (https=) |
Families Citing this family (54)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006101461A (ja) | 2004-09-30 | 2006-04-13 | Yamaha Corp | 立体音響再生装置 |
| DE102005010057A1 (de) * | 2005-03-04 | 2006-09-07 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Vorrichtung und Verfahren zum Erzeugen eines codierten Stereo-Signals eines Audiostücks oder Audiodatenstroms |
| JP4103903B2 (ja) * | 2005-06-06 | 2008-06-18 | ヤマハ株式会社 | オーディオ装置およびオーディオ装置によるビーム制御方法 |
| CA2621175C (en) | 2005-09-13 | 2015-12-22 | Srs Labs, Inc. | Systems and methods for audio processing |
| TWI420918B (zh) * | 2005-12-02 | 2013-12-21 | Dolby Lab Licensing Corp | 低複雜度音訊矩陣解碼器 |
| WO2007080211A1 (en) * | 2006-01-09 | 2007-07-19 | Nokia Corporation | Decoding of binaural audio signals |
| TWI469133B (zh) | 2006-01-19 | 2015-01-11 | Lg Electronics Inc | 媒體訊號處理方法及裝置 |
| JP5199129B2 (ja) | 2006-02-07 | 2013-05-15 | エルジー エレクトロニクス インコーポレイティド | 符号化／復号化装置及び方法 |
| WO2007106324A1 (en) * | 2006-03-13 | 2007-09-20 | Dolby Laboratories Licensing Corporation | Rendering center channel audio |
| ATE543343T1 (de) * | 2006-04-03 | 2012-02-15 | Srs Labs Inc | Tonsignalverarbeitung |
| JP4668118B2 (ja) * | 2006-04-28 | 2011-04-13 | ヤマハ株式会社 | 音場制御装置 |
| JP4835298B2 (ja) * | 2006-07-21 | 2011-12-14 | ソニー株式会社 | オーディオ信号処理装置、オーディオ信号処理方法およびプログラム |
| CN101513124B (zh) * | 2006-09-07 | 2012-05-23 | 皇家飞利浦电子股份有限公司 | 用于大功率发光二极管照明的具有低压次级侧控制的谐振驱动器 |
| KR100862663B1 (ko) * | 2007-01-25 | 2008-10-10 | 삼성전자주식회사 | 입력되는 신호를 공간상의 위치로 음상 정위하는 방법 및장치 |
| WO2008142651A1 (en) * | 2007-05-22 | 2008-11-27 | Koninklijke Philips Electronics N.V. | A device for and a method of processing audio data |
| GB0724366D0 (en) * | 2007-12-14 | 2008-01-23 | Univ York | Environment modelling |
| US8335331B2 (en) * | 2008-01-18 | 2012-12-18 | Microsoft Corporation | Multichannel sound rendering via virtualization in a stereo loudspeaker system |
| EP2258119B1 (fr) * | 2008-02-29 | 2012-08-29 | France Telecom | Procede et dispositif pour la determination de fonctions de transfert de type hrtf |
| ES2531422T3 (es) * | 2008-07-31 | 2015-03-13 | Fraunhofer Ges Forschung | Generación de señales para señales binaurales |
| JP5524237B2 (ja) * | 2008-12-19 | 2014-06-18 | ドルビー インターナショナル アーベー | 空間キューパラメータを用いてマルチチャンネルオーディオ信号に反響を適用する方法と装置 |
| JP5505763B2 (ja) * | 2009-02-17 | 2014-05-28 | 学校法人日本大学 | 音場創生装置 |
| US8000485B2 (en) * | 2009-06-01 | 2011-08-16 | Dts, Inc. | Virtual audio processing for loudspeaker or headphone playback |
| EP2489207A4 (en) | 2009-10-12 | 2013-10-30 | Nokia Corp | MULTI-WAY ANALYSIS FOR AUDIO WORKING |
| EP2541542A1 (en) * | 2011-06-27 | 2013-01-02 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Apparatus and method for determining a measure for a perceived level of reverberation, audio processor and method for processing a signal |
| US9641951B2 (en) * | 2011-08-10 | 2017-05-02 | The Johns Hopkins University | System and method for fast binaural rendering of complex acoustic scenes |
| US9602927B2 (en) * | 2012-02-13 | 2017-03-21 | Conexant Systems, Inc. | Speaker and room virtualization using headphones |
| ES2606642T3 (es) * | 2012-03-23 | 2017-03-24 | Dolby Laboratories Licensing Corporation | Método y sistema para generación de función de transferencia relacionada con la cabeza mediante mezcla lineal de funciones de transferencia relacionadas con la cabeza |
| KR20240108571A (ko) * | 2012-07-16 | 2024-07-09 | 돌비 인터네셔널 에이비 | 오디오 재생을 위한 오디오 음장 표현을 렌더링하는 방법 및 장치 |
| CN104956689B (zh) | 2012-11-30 | 2017-07-04 | Dts（英属维尔京群岛）有限公司 | 用于个性化音频虚拟化的方法和装置 |
| US9794715B2 (en) | 2013-03-13 | 2017-10-17 | Dts Llc | System and methods for processing stereo audio content |
| US9426589B2 (en) * | 2013-07-04 | 2016-08-23 | Gn Resound A/S | Determination of individual HRTFs |
| EP2830327A1 (en) * | 2013-07-22 | 2015-01-28 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Audio processor for orientation-dependent processing |
| EP2840811A1 (en) * | 2013-07-22 | 2015-02-25 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Method for processing an audio signal; signal processing unit, binaural renderer, audio encoder and audio decoder |
| US9286863B2 (en) * | 2013-09-12 | 2016-03-15 | Nancy Diane Moon | Apparatus and method for a celeste in an electronically-orbited speaker |
| EP3048816B1 (en) | 2013-09-17 | 2020-09-16 | Wilus Institute of Standards and Technology Inc. | Method and apparatus for processing multimedia signals |
| CN105900455B (zh) | 2013-10-22 | 2018-04-06 | 延世大学工业学术合作社 | 用于处理音频信号的方法和设备 |
| KR101467822B1 (ko) * | 2013-12-18 | 2014-12-03 | 한국해양과학기술원 | 스테레오 수중 음향신호의 공기 중 재현을 위한 신호처리방법 및 이를 이용한 신호처리장치 |
| CA2934856C (en) | 2013-12-23 | 2020-01-14 | Wilus Institute Of Standards And Technology Inc. | Method for generating filter for audio signal, and parameterization device for same |
| CN106105269B (zh) | 2014-03-19 | 2018-06-19 | 韦勒斯标准与技术协会公司 | 音频信号处理方法和设备 |
| KR102216801B1 (ko) | 2014-04-02 | 2021-02-17 | 주식회사 윌러스표준기술연구소 | 오디오 신호 처리 방법 및 장치 |
| US9584938B2 (en) * | 2015-01-19 | 2017-02-28 | Sennheiser Electronic Gmbh & Co. Kg | Method of determining acoustical characteristics of a room or venue having n sound sources |
| PL3257270T3 (pl) * | 2015-03-27 | 2019-07-31 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Urządzenie i sposób przetwarzania sygnałów stereo do odtwarzania w samochodach dla uzyskania indywidualnego dźwięku trójwymiarowego przez przednie głośniki |
| US10685641B2 (en) * | 2016-02-01 | 2020-06-16 | Sony Corporation | Sound output device, sound output method, and sound output system for sound reverberation |
| WO2018211988A1 (ja) * | 2017-05-17 | 2018-11-22 | ソニー株式会社 | 音声出力制御装置、音声出力制御方法、並びにプログラム |
| US10764704B2 (en) * | 2018-03-22 | 2020-09-01 | Boomcloud 360, Inc. | Multi-channel subband spatial processing for loudspeakers |
| JP7402185B2 (ja) * | 2018-06-12 | 2023-12-20 | マジック リープ， インコーポレイテッド | 低周波数チャネル間コヒーレンス制御 |
| CN114205730A (zh) | 2018-08-20 | 2022-03-18 | 华为技术有限公司 | 音频处理方法和装置 |
| CN110856094A (zh) * | 2018-08-20 | 2020-02-28 | 华为技术有限公司 | 音频处理方法和装置 |
| JP7776332B2 (ja) * | 2018-10-05 | 2025-11-26 | マジック リープ， インコーポレイテッド | 両耳オーディオレンダリングのための両耳間時間差クロスフェーダ |
| WO2020152550A1 (en) * | 2019-01-21 | 2020-07-30 | Maestre Gomez Esteban | Method and system for virtual acoustic rendering by time-varying recursive filter structures |
| US10841728B1 (en) | 2019-10-10 | 2020-11-17 | Boomcloud 360, Inc. | Multi-channel crosstalk processing |
| KR20220013630A (ko) | 2020-07-27 | 2022-02-04 | 삼성전자주식회사 | 오디오의 채널의 수를 변환하는 전자 장치 및 전자 장치의 동작 방법 |
| NL2026361B1 (en) * | 2020-08-28 | 2022-04-29 | Liquid Oxigen Lox B V | Method for generating a reverberation audio signal |
| CN117692846B (zh) * | 2023-07-05 | 2025-01-03 | 荣耀终端有限公司 | 一种音频播放方法、终端设备、存储介质及程序产品 |
Family Cites Families (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4027101A (en) * | 1976-04-26 | 1977-05-31 | Hybrid Systems Corporation | Simulation of reverberation in audio signals |
| JPS5552700A (en) | 1978-10-14 | 1980-04-17 | Matsushita Electric Ind Co Ltd | Sound image normal control unit |
| US4731848A (en) | 1984-10-22 | 1988-03-15 | Northwestern University | Spatial reverberator |
| DE69323874T2 (de) | 1992-05-20 | 1999-12-02 | Industrial Research Ltd., Lower Hutt | Verbesserungen in einem breitband-nachhallsystem |
| JPH0666200U (ja) | 1993-02-16 | 1994-09-16 | オンキヨー株式会社 | 音響再生装置 |
| US5371799A (en) * | 1993-06-01 | 1994-12-06 | Qsound Labs, Inc. | Stereo headphone sound source localization system |
| KR0135850B1 (ko) * | 1993-11-18 | 1998-05-15 | 김광호 | 음성재생장치 |
| JPH07222297A (ja) * | 1994-02-04 | 1995-08-18 | Matsushita Electric Ind Co Ltd | 音場再生装置 |
| US5809149A (en) | 1996-09-25 | 1998-09-15 | Qsound Labs, Inc. | Apparatus for creating 3D audio imaging over headphones using binaural synthesis |
| US6421446B1 (en) * | 1996-09-25 | 2002-07-16 | Qsound Labs, Inc. | Apparatus for creating 3D audio imaging over headphones using binaural synthesis including elevation |
| US6021206A (en) | 1996-10-02 | 2000-02-01 | Lake Dsp Pty Ltd | Methods and apparatus for processing spatialised audio |
| EP0946680A4 (en) * | 1996-11-25 | 2003-01-22 | Ashland Inc | METHOD FOR PRODUCING A HYDROGEN-LIKE AND CARBON-MONOXIDE-HIGH GAS BY USE OF LIQUID METALS IN TWO ZONES |
| EP1025743B1 (en) | 1997-09-16 | 2013-06-19 | Dolby Laboratories Licensing Corporation | Utilisation of filtering effects in stereo headphone devices to enhance spatialization of source around a listener |
| DE69823228T2 (de) | 1997-12-19 | 2005-04-14 | Daewoo Electronics Corp. | Raumklangsignalverarbeitungsvorriehtung und -verfahren |
| JP2000152399A (ja) | 1998-11-12 | 2000-05-30 | Yamaha Corp | 音場効果制御装置 |
| US6188769B1 (en) | 1998-11-13 | 2001-02-13 | Creative Technology Ltd. | Environmental reverberation processor |
| AUPP790598A0 (en) | 1998-12-23 | 1999-01-28 | Lake Dsp Pty Limited | Efficient impulse response convolution method and apparatus |
| GB9922654D0 (en) * | 1999-09-27 | 1999-11-24 | Jaber Marwan | Noise suppression system |
| JP2002044799A (ja) | 2000-07-31 | 2002-02-08 | Yamaha Corp | オーディオ用アンプ |
| US7149314B2 (en) * | 2000-12-04 | 2006-12-12 | Creative Technology Ltd | Reverberation processor based on absorbent all-pass filters |
-
2004
- 2004-10-21 US US10/970,123 patent/US7949141B2/en active Active
- 2004-10-27 KR KR1020067009354A patent/KR101184641B1/ko not_active Expired - Lifetime
- 2004-10-27 WO PCT/AU2004/001479 patent/WO2005048653A1/en not_active Ceased
- 2004-10-27 CN CN200480033451XA patent/CN1879450B/zh not_active Expired - Lifetime
- 2004-10-27 PL PL04789617T patent/PL1685743T3/pl unknown
- 2004-10-27 JP JP2006538593A patent/JP5084264B2/ja not_active Expired - Lifetime
- 2004-10-27 EP EP04789617A patent/EP1685743B1/en not_active Expired - Lifetime
- 2004-10-27 CA CA2545268A patent/CA2545268C/en not_active Expired - Lifetime
- 2004-10-27 AU AU2004310176A patent/AU2004310176B2/en not_active Expired
- 2004-10-27 ES ES04789617T patent/ES2404512T3/es not_active Expired - Lifetime
- 2004-10-27 DK DK04789617.0T patent/DK1685743T3/da active
-
2006
- 2006-04-27 IL IL175272A patent/IL175272A/en active IP Right Grant
-
2011
- 2011-05-24 JP JP2011115669A patent/JP2011223595A/ja not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| CN1879450B (zh) | 2010-04-28 |
| JP5084264B2 (ja) | 2012-11-28 |
| AU2004310176B2 (en) | 2008-04-24 |
| EP1685743A1 (en) | 2006-08-02 |
| US20050100171A1 (en) | 2005-05-12 |
| IL175272A (en) | 2012-04-30 |
| DK1685743T3 (da) | 2013-04-15 |
| HK1092992A1 (en) | 2007-02-16 |
| PL1685743T3 (pl) | 2013-06-28 |
| US7949141B2 (en) | 2011-05-24 |
| CA2545268A1 (en) | 2005-05-26 |
| WO2005048653A1 (en) | 2005-05-26 |
| JP2011223595A (ja) | 2011-11-04 |
| KR101184641B1 (ko) | 2012-09-20 |
| JP2007511140A (ja) | 2007-04-26 |
| EP1685743B1 (en) | 2013-02-27 |
| CN1879450A (zh) | 2006-12-13 |
| EP1685743A4 (en) | 2009-09-09 |
| ES2404512T3 (es) | 2013-05-28 |
| AU2004310176A1 (en) | 2005-05-26 |
| KR20060120109A (ko) | 2006-11-24 |
| IL175272A0 (en) | 2006-09-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2545268C (en) | Audio signal processing system and method | |
| US5371799A (en) | Stereo headphone sound source localization system | |
| US8619998B2 (en) | Spatial audio enhancement processing method and apparatus | |
| US6658117B2 (en) | Sound field effect control apparatus and method | |
| US20050265558A1 (en) | Method and circuit for enhancement of stereo audio reproduction | |
| EP0880301B1 (en) | Full sound enhancement using multi-input sound signals | |
| KR20100034004A (ko) | 향상된 지각적 품질을 갖는 스테레오 신호 생성방법 및 장치 | |
| KR20010030608A (ko) | 청취자 주변의 음원의 공간화를 향상시키기 위한 스테레오헤드폰 디바이스에서의 필터링 효과의 이용 | |
| JPH08146974A (ja) | 音像音場制御装置 | |
| JP3557177B2 (ja) | ヘッドホン用立体音響装置および音声信号処理プログラム | |
| JP3594281B2 (ja) | ステレオ拡大装置及び音場拡大装置 | |
| US20200402496A1 (en) | Reverberation adding apparatus, reverberation adding method, and reverberation adding program | |
| JP3255580B2 (ja) | ステレオ音像拡大装置及び音像制御装置 | |
| HK1092992B (en) | Audio signal processing system and method | |
| MXPA06005332A (es) | Sistema y metodo de procesamiento de señal de audio | |
| EP1815715A1 (en) | Apparatus and method to generate virtual 3d sound using asymmetry and recording medium storing program to perform the method | |
| Pellegrini | Perception-based room rendering for auditory scenes | |
| WO2001019138A2 (en) | Method and apparatus for generating a second audio signal from a first audio signal | |
| RU2846768C1 (ru) | Генерирование бинаурального звукового сигнала в ответ на многоканальный звуковой сигнал с использованием по меньшей мере одной схемы задержки с обратной связью | |
| JPH10336797A (ja) | 疑似ステレオ回路 | |
| KR20060026234A (ko) | 입체 음향 재생 장치 및 방법 | |
| JPH02305098A (ja) | 車室内音場構成装置 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request |