CH625660A5 - - Google Patents

Download PDF

Info

Publication number
CH625660A5
CH625660A5 CH589977A CH589977A CH625660A5 CH 625660 A5 CH625660 A5 CH 625660A5 CH 589977 A CH589977 A CH 589977A CH 589977 A CH589977 A CH 589977A CH 625660 A5 CH625660 A5 CH 625660A5
Authority
CH
Switzerland
Prior art keywords
signal
gain
components
signals
filter
Prior art date
Application number
CH589977A
Other languages
English (en)
French (fr)
Inventor
Michael Anthony Gerzon
Original Assignee
Nat Res Dev
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 Nat Res Dev filed Critical Nat Res Dev
Publication of CH625660A5 publication Critical patent/CH625660A5/fr

Links

Classifications

    • 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
    • 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
    • H04S2420/11—Application of ambisonics in stereophonic audio systems

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Mathematical Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Algebra (AREA)
  • Pure & Applied Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Stereophonic System (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Stereo-Broadcasting Methods (AREA)
CH589977A 1974-03-26 1977-05-11 CH625660A5 (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB13292/74A GB1494751A (en) 1974-03-26 1974-03-26 Sound reproduction systems

Publications (1)

Publication Number Publication Date
CH625660A5 true CH625660A5 (it) 1981-09-30

Family

ID=10020311

Family Applications (2)

Application Number Title Priority Date Filing Date
CH383175A CH617303A5 (it) 1974-03-26 1975-03-25
CH589977A CH625660A5 (it) 1974-03-26 1977-05-11

Family Applications Before (1)

Application Number Title Priority Date Filing Date
CH383175A CH617303A5 (it) 1974-03-26 1975-03-25

Country Status (10)

Country Link
US (1) US3997725A (it)
JP (2) JPS5943880B2 (it)
CA (1) CA1020095A (it)
CH (2) CH617303A5 (it)
DE (1) DE2512287A1 (it)
DK (1) DK120075A (it)
FR (1) FR2266411B1 (it)
GB (1) GB1494751A (it)
IT (1) IT1034536B (it)
NL (1) NL181068C (it)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4085291A (en) * 1971-10-06 1978-04-18 Cooper Duane H Synthetic supplementary channel matrix decoding systems
US4086433A (en) * 1974-03-26 1978-04-25 National Research Development Corporation Sound reproduction system with non-square loudspeaker lay-out
GB1512514A (en) * 1974-07-12 1978-06-01 Nat Res Dev Microphone assemblies
GB1550627A (en) * 1975-11-13 1979-08-15 Nat Res Dev Sound reproduction systems
US4095049A (en) * 1976-03-15 1978-06-13 National Research Development Corporation Non-rotationally-symmetric surround-sound encoding system
GB1548674A (en) * 1976-07-01 1979-07-18 Nat Res Dev Sound reproduction systems
GB2073556B (en) * 1980-02-23 1984-02-22 Nat Res Dev Sound reproduction systems
DE3734084A1 (de) * 1987-10-08 1989-04-27 Inst Rundfunktechnik Gmbh Verfahren zum wiedergeben mehrkanaliger tonsignale
JPH05191899A (ja) * 1992-01-16 1993-07-30 Pioneer Electron Corp ステレオサラウンド装置
US5757927A (en) * 1992-03-02 1998-05-26 Trifield Productions Ltd. Surround sound apparatus
US5754663A (en) * 1995-03-30 1998-05-19 Bsg Laboratories Four dimensional acoustical audio system for a homogeneous sound field
US5708719A (en) * 1995-09-07 1998-01-13 Rep Investment Limited Liability Company In-home theater surround sound speaker system
US5930370A (en) * 1995-09-07 1999-07-27 Rep Investment Limited Liability In-home theater surround sound speaker system
US6118876A (en) * 1995-09-07 2000-09-12 Rep Investment Limited Liability Company Surround sound speaker system for improved spatial effects
US5677957A (en) * 1995-11-13 1997-10-14 Hulsebus; Alan Audio circuit producing enhanced ambience
US6072878A (en) * 1997-09-24 2000-06-06 Sonic Solutions Multi-channel surround sound mastering and reproduction techniques that preserve spatial harmonics
EP1749420A4 (en) * 2004-05-25 2008-10-15 Huonlabs Pty Ltd AUDIO APPARATUS AND METHOD
US20060215859A1 (en) * 2005-03-28 2006-09-28 Morrow Charles G Sonic method and apparatus
WO2010113434A1 (ja) * 2009-03-31 2010-10-07 パナソニック株式会社 音響再生装置及び音響再生方法
US9020152B2 (en) * 2010-03-05 2015-04-28 Stmicroelectronics Asia Pacific Pte. Ltd. Enabling 3D sound reproduction using a 2D speaker arrangement
US8593219B1 (en) * 2012-08-31 2013-11-26 Motorola Solutions, Inc. Method and apparatus for amplifying a radio frequency signal
US9338552B2 (en) 2014-05-09 2016-05-10 Trifield Ip, Llc Coinciding low and high frequency localization panning
US10251012B2 (en) 2016-06-07 2019-04-02 Philip Raymond Schaefer System and method for realistic rotation of stereo or binaural audio
CN109618275B (zh) * 2018-12-29 2020-11-17 武汉轻工大学 多声道的非中心点声场重建方法、设备、存储介质及装置

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1369813A (en) * 1971-02-02 1974-10-09 Nat Res Dev Reproduction of sound
US3784746A (en) * 1971-07-06 1974-01-08 R Hess Single actuator for effecting multiple controls
US3830978A (en) * 1971-07-08 1974-08-20 Matsushita Electric Ind Co Ltd Circuit for mixing four audio input signals to produce four audio output signals
US3906156A (en) * 1971-10-06 1975-09-16 Duane H Cooper Signal matrixing for directional reproduction of sound
US3856992A (en) * 1971-10-06 1974-12-24 D Cooper Multidirectional sound reproduction
JPS5313962B2 (it) * 1971-12-21 1978-05-13
JPS5210364B2 (it) * 1972-05-02 1977-03-23
US3824342A (en) * 1972-05-09 1974-07-16 Rca Corp Omnidirectional sound field reproducing system
US3883692A (en) * 1972-06-16 1975-05-13 Sony Corp Decoder apparatus with logic circuit for use with a four channel stereo
JPS5236681B2 (it) * 1972-11-30 1977-09-17

Also Published As

Publication number Publication date
DE2512287A1 (de) 1975-10-09
NL181068C (nl) 1987-06-01
JPS5943880B2 (ja) 1984-10-25
FR2266411B1 (it) 1983-07-08
CH617303A5 (it) 1980-05-14
DK120075A (it) 1975-09-27
JPS6022898A (ja) 1985-02-05
NL7503576A (nl) 1975-09-30
CA1020095A (en) 1977-11-01
JPH0137080B2 (it) 1989-08-03
DE2512287C2 (it) 1988-04-07
JPS50131501A (it) 1975-10-17
GB1494751A (en) 1977-12-14
FR2266411A1 (it) 1975-10-24
IT1034536B (it) 1979-10-10
US3997725A (en) 1976-12-14

Similar Documents

Publication Publication Date Title
CH625660A5 (it)
US10757527B2 (en) Crosstalk cancellation b-chain
FR2790634A1 (fr) Procede de synthese d'un champ sonore tridimensionnel
US10499153B1 (en) Enhanced virtual stereo reproduction for unmatched transaural loudspeaker systems
KR20000065108A (ko) 서라운드사운드환경에사용하기위한오디오증강시스템
US11689855B2 (en) Crosstalk cancellation for opposite-facing transaural loudspeaker systems
US4149031A (en) Multichannel matrix logic and encoding systems
CA1135196A (en) Microphone system for producing signals for surround-sound transmission and reproduction
US4086433A (en) Sound reproduction system with non-square loudspeaker lay-out
US4251685A (en) Reproduction of sound
CH633400A5 (fr) Installation pour la reproduction d'un son d'environnement.
US3970788A (en) Monaural and stereo compatible multidirectional sound matrixing
CH627035A5 (it)
FR2587163A1 (fr) Systeme non recursif pour etendre la base stereophonique d'un appareil de diffusion acoustique stereophonique
US4394535A (en) Split phase stereophonic sound synthesizer
CH622919A5 (it)
US4085291A (en) Synthetic supplementary channel matrix decoding systems
EP3701730A1 (fr) Arrangement spatial de dispositifs de diffusion sonore
EP0295971A1 (fr) Transducteur électroacoustique de puissance, à haute fidélité,à système de diffusion étagé
Chang et al. Analyses on limitations of binaural sound based on the first order Ambisonics for virtual reality audio
FR2677839A1 (fr) Procede et dispositif pour systeme stereophonique de reproduction du son.
FR2857550A1 (fr) Enceinte acoustique omnidirectionnelle bipolaire
BE864783A (fr) Systeme amplificateur et de reproduction sonore
JPS583638B2 (ja) 音像定位方式
WO2005076665A1 (fr) Eliminateur de signaux communs d’une source stereo

Legal Events

Date Code Title Description
PUE Assignment

Owner name: BRITISH TECHNOLOGY GROUP LTD

PL Patent ceased