AR245858A1 - Sound imaging method and apparatus - Google Patents

Sound imaging method and apparatus

Info

Publication number
AR245858A1
AR245858A1 AR89314840A AR31484089A AR245858A1 AR 245858 A1 AR245858 A1 AR 245858A1 AR 89314840 A AR89314840 A AR 89314840A AR 31484089 A AR31484089 A AR 31484089A AR 245858 A1 AR245858 A1 AR 245858A1
Authority
AR
Argentina
Prior art keywords
sound
frequency
phase angle
source
amplitude
Prior art date
Application number
AR89314840A
Other languages
Spanish (es)
Original Assignee
Sound Ltd O
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
Priority claimed from US07/239,981 external-priority patent/US5046097A/en
Application filed by Sound Ltd O filed Critical Sound Ltd O
Application granted granted Critical
Publication of AR245858A1 publication Critical patent/AR245858A1/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R5/00—Stereophonic arrangements
    • H04R5/02—Spatial or constructional arrangements of loudspeakers
    • 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 
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S1/00—Two-channel systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S1/00—Two-channel systems
    • H04S1/002—Non-adaptive circuits, e.g. manually adjustable or static, for enhancing the sound image or the spatial distribution
    • 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
    • H04S2420/03—Application of parametric coding in stereophonic audio systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S7/00—Indicating arrangements; Control arrangements, e.g. balance control
    • H04S7/40—Visual indication of stereophonic sound image

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Stereophonic System (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
  • Electrophonic Musical Instruments (AREA)

Abstract

UN APARATO PARA CONDICIONAR UNA SENAL PARA PRODUCIR Y UBICAR, UNA ILUSION SENSORA AUDIBLE DE UN ORIGEN APARENTE, DE AL MENOS UN SONIDO SELECCIONADO, EN UNA POSICION LOCALIZADA EN UNA HABITACION CONTENIENDO UN OYENTE, A PARTIR DE UNA SENAL ELECTRICA QUE REPRESENTA EL SONIDO SELECCIONADO, POSEE DOS PROCESADORES DE SONIDO SEPARADOS, CADA UNO PROVISTO DE UNA ENTRADA CONECTADA A UN MEDIO TRANSMISOR DE DICHA SENAL ELECTRICA, SIENDO CADA PROCESADOR DE SONIDO CAPAZ DE MODIFICAR LA AMPLITUD Y DESPLAZAR EL ANGULO DE FASE DE LA SENAL ELECTRICA RESPECTIVA EN FUNCION DE LA FRECUENCIA SEGUN FUNCIONES DE TRANSFERENCIA PREDETERMINADAS PARA INTERVALOS DISCRETOS SUCESIVOS DE FRECUENCIA A LO LARGO DEL ESPECTRO DE AUDIO, DIFIRIENDO LOS DESPLAZAMIENTOS DE ANGULOS DE FASE ENTRE INTERVALOS DE FRECUENCIA SUCESIVOS, TENIENDO CADA PROCESADOR DE SONIDO UNA SALIDA RESPECTIVA DE UNA SENAL ELECTRICA MODIFICADA DE MODO QUE LA MODIFICACION DIFERENCIAL DE AMPLITUD Y EL DESPLAZAMIENTO DIFERENCIAL DE ANGULO DE FASE ENTRE AMBAS SALIDAS CORRESPONDEN A VALORES PREDETERMINADOS PARA CADA INTERVALO DE FRECUENCIAS DEL ESPECTRO DE AUDIO, ESTANDO LAS SALIDAS DE LOS DOS PROCESADORES DE SONIDO BIUNIVOCAMENTE A LOS DOS TRANSDUCTORES POR INTERMEDIO DE LOS CANALES SEPARADOS.A DEVICE TO CONDITION A SIGNAL TO PRODUCE AND LOCATE, AN AUDIBLE SENSING ILLUSION OF AN APPARENT SOURCE, OF AT LEAST A SELECTED SOUND, IN A LOCATED LOCATION IN A ROOM CONTAINING A LISTENER, REPRESENTING THE SOUND IT HAS TWO SEPARATE SOUND PROCESSORS, EACH PROVIDED WITH AN INPUT CONNECTED TO A SINGLE ELECTRIC SIGNAL TRANSMITTER, EACH SOUND PROCESSOR IS ABLE TO MODIFY THE AMPLITUDE AND MOVE THE PHASE ANGLE OF THE RESPECTIVE ELECTRICAL SIGNAL ACCORDING TO THE FREQUENCY. DEFAULT TRANSFER FUNCTIONS FOR SUCCESSIVE DISCRETE INTERVALS OF FREQUENCY THROUGHOUT THE AUDIO SPECTRUM, DIFFERING THE PHASE ANGLE DISPLACEMENTS BETWEEN SUCCESSIVE FREQUENCY, HAVING EACH SOUND PROCESSOR DEPENDING A SOUND DEPARTURE THAT ISSUE OF A SOURCE OF DIFFERENT SOURCE, CAUSING EACH SOUND PROCESSOR WITH A RANGE OF SOUND. OF AMPLITUDE AND THE DIFFERENTIAL DISPLACEMENT OF PHASE ANGLE ENT BOTH OUTPUTS CORRESPOND TO DEFAULT VALUES FOR EACH FREQUENCY INTERVAL OF THE AUDIO SPECTRUM, THE OUTPUTS OF THE TWO SOUND PROCESSORS BEING BIUNICALLY TO THE TWO INTERMEDIATE TRANSDUCERS OF THE SEPARATE CHANNELS.

AR89314840A 1988-09-02 1989-09-04 Sound imaging method and apparatus AR245858A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/239,981 US5046097A (en) 1988-09-02 1988-09-02 Sound imaging process
US39898889A 1989-08-28 1989-08-28

Publications (1)

Publication Number Publication Date
AR245858A1 true AR245858A1 (en) 1994-02-28

Family

ID=26933039

Family Applications (1)

Application Number Title Priority Date Filing Date
AR89314840A AR245858A1 (en) 1988-09-02 1989-09-04 Sound imaging method and apparatus

Country Status (18)

Country Link
EP (1) EP0357402B1 (en)
JP (1) JP3205808B2 (en)
KR (1) KR930002147B1 (en)
AR (1) AR245858A1 (en)
AT (1) ATE123369T1 (en)
AU (1) AU621655B2 (en)
BG (1) BG60225B2 (en)
CA (1) CA1329911C (en)
DE (1) DE68922885T2 (en)
DK (1) DK433789A (en)
ES (1) ES2075053T3 (en)
FI (1) FI894143A (en)
HU (1) HUT59523A (en)
IL (1) IL91464A (en)
NO (1) NO175229C (en)
NZ (1) NZ230517A (en)
PL (1) PL163716B1 (en)
RU (1) RU2092979C1 (en)

Families Citing this family (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI906028A (en) * 1989-12-07 1991-06-08 Q Sound Ltd ANORDNING FOER PLACERING AV LJUD VID ETT VIDEOSPEL.
ES2087522T3 (en) * 1991-01-08 1996-07-16 Dolby Lab Licensing Corp DECODING / CODING FOR MULTIDIMENSIONAL SOUND FIELDS.
JPH05145743A (en) * 1991-11-21 1993-06-11 Ricoh Co Ltd Image producing device
DE69322805T2 (en) * 1992-04-03 1999-08-26 Yamaha Corp. Method of controlling sound source position
US6490359B1 (en) 1992-04-27 2002-12-03 David A. Gibson Method and apparatus for using visual images to mix sound
EP0649589B1 (en) * 1992-07-06 1999-05-19 Adaptive Audio Limited Adaptive audio systems and sound reproduction systems
JP2870562B2 (en) * 1992-11-30 1999-03-17 日本ビクター株式会社 Method of sound image localization control
WO1994024836A1 (en) * 1993-04-20 1994-10-27 Sixgraph Technologies Ltd Interactive sound placement system and process
US5436975A (en) * 1994-02-02 1995-07-25 Qsound Ltd. Apparatus for cross fading out of the head sound locations
US5596644A (en) * 1994-10-27 1997-01-21 Aureal Semiconductor Inc. Method and apparatus for efficient presentation of high-quality three-dimensional audio
US5850453A (en) 1995-07-28 1998-12-15 Srs Labs, Inc. Acoustic correction apparatus
RU2106075C1 (en) * 1996-03-25 1998-02-27 Владимир Анатольевич Ефремов Spatial sound playback system
US5970152A (en) * 1996-04-30 1999-10-19 Srs Labs, Inc. Audio enhancement system for use in a surround sound environment
KR100370413B1 (en) * 1996-06-30 2003-04-10 삼성전자 주식회사 Method and apparatus for converting the number of channels when multi-channel audio data is reproduced
JPH10108300A (en) * 1996-09-27 1998-04-24 Yamaha Corp Sound field reproduction device
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
US6281749B1 (en) 1997-06-17 2001-08-28 Srs Labs, Inc. Sound enhancement system
US6016473A (en) * 1998-04-07 2000-01-18 Dolby; Ray M. Low bit-rate spatial coding method and system
GB2343347B (en) 1998-06-20 2002-12-31 Central Research Lab Ltd A method of synthesising an audio signal
JP3781902B2 (en) 1998-07-01 2006-06-07 株式会社リコー Sound image localization control device and sound image localization control method
GB2342024B (en) * 1998-09-23 2004-01-14 Sony Uk Ltd Audio processing
US7031474B1 (en) 1999-10-04 2006-04-18 Srs Labs, Inc. Acoustic correction apparatus
US7277767B2 (en) 1999-12-10 2007-10-02 Srs Labs, Inc. System and method for enhanced streaming audio
GB2370176A (en) * 2000-08-10 2002-06-19 James Gregory Stanier A simple microphone unit for the vertical localisation and enhancement of live sounds
JP4602204B2 (en) 2005-08-31 2010-12-22 ソニー株式会社 Audio signal processing apparatus and audio signal processing method
JP4637725B2 (en) 2005-11-11 2011-02-23 ソニー株式会社 Audio signal processing apparatus, audio signal processing method, and program
JP4835298B2 (en) 2006-07-21 2011-12-14 ソニー株式会社 Audio signal processing apparatus, audio signal processing method and program
JP4894386B2 (en) 2006-07-21 2012-03-14 ソニー株式会社 Audio signal processing apparatus, audio signal processing method, and audio signal processing program
US8050434B1 (en) 2006-12-21 2011-11-01 Srs Labs, Inc. Multi-channel audio enhancement system
US9015051B2 (en) 2007-03-21 2015-04-21 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Reconstruction of audio channels with direction parameters indicating direction of origin
US8290167B2 (en) 2007-03-21 2012-10-16 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Method and apparatus for conversion between multi-channel audio formats
US8908873B2 (en) 2007-03-21 2014-12-09 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Method and apparatus for conversion between multi-channel audio formats
EP2124486A1 (en) * 2008-05-13 2009-11-25 Clemens Par Angle-dependent operating device or method for generating a pseudo-stereophonic audio signal
JP5499513B2 (en) * 2009-04-21 2014-05-21 ソニー株式会社 Sound processing apparatus, sound image localization processing method, and sound image localization processing program
WO2012094335A1 (en) 2011-01-04 2012-07-12 Srs Labs, Inc. Immersive audio rendering system
US9164724B2 (en) 2011-08-26 2015-10-20 Dts Llc Audio adjustment system
TR201807219T4 (en) * 2012-01-17 2018-06-21 Koninklijke Philips Nv Audio source location estimate
WO2017211448A1 (en) 2016-06-06 2017-12-14 Valenzuela Holding Gmbh Method for generating a two-channel signal from a single-channel signal of a sound source
US10511909B2 (en) * 2017-11-29 2019-12-17 Boomcloud 360, Inc. Crosstalk cancellation for opposite-facing transaural loudspeaker systems

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4152542A (en) * 1971-10-06 1979-05-01 Cooper Duane P Multichannel matrix logic and encoding systems
US4308424A (en) * 1980-04-14 1981-12-29 Bice Jr Robert G Simulated stereo from a monaural source sound reproduction system
NL8303945A (en) * 1983-11-17 1985-06-17 Philips Nv DEVICE FOR REALIZING A PSEUDO STEREO SIGNAL.
JPS61281799A (en) * 1985-06-07 1986-12-12 Dainabekutaa Kk Sound signal reproducing system
US4759065A (en) * 1986-09-22 1988-07-19 Harman International Industries, Incorporated Automotive sound system
JP2935266B2 (en) * 1987-05-11 1999-08-16 ジャンポルスキー、アーサー Paradoxical hearing aids

Also Published As

Publication number Publication date
NO175229C (en) 1994-09-14
DK433789A (en) 1990-03-03
BG60225B2 (en) 1993-12-30
EP0357402A3 (en) 1991-10-02
DK433789D0 (en) 1989-09-01
NO893522D0 (en) 1989-09-01
ATE123369T1 (en) 1995-06-15
FI894143A (en) 1990-03-03
CA1329911C (en) 1994-05-31
EP0357402B1 (en) 1995-05-31
KR930002147B1 (en) 1993-03-26
PL163716B1 (en) 1994-04-29
HUT59523A (en) 1992-05-28
EP0357402A2 (en) 1990-03-07
ES2075053T3 (en) 1995-10-01
JP3205808B2 (en) 2001-09-04
FI894143A0 (en) 1989-09-01
NZ230517A (en) 1992-10-28
AU621655B2 (en) 1992-03-19
DE68922885D1 (en) 1995-07-06
IL91464A0 (en) 1990-04-29
AU4100089A (en) 1990-03-08
DE68922885T2 (en) 1995-10-12
JPH02298200A (en) 1990-12-10
NO893522L (en) 1990-03-05
KR900005841A (en) 1990-04-14
NO175229B (en) 1994-06-06
RU2092979C1 (en) 1997-10-10
IL91464A (en) 1994-11-28

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