WO1999014735A3 - Acoustic signal reproducing apparatus - Google Patents

Acoustic signal reproducing apparatus Download PDF

Info

Publication number
WO1999014735A3
WO1999014735A3 PCT/RU1998/000355 RU9800355W WO9914735A3 WO 1999014735 A3 WO1999014735 A3 WO 1999014735A3 RU 9800355 W RU9800355 W RU 9800355W WO 9914735 A3 WO9914735 A3 WO 9914735A3
Authority
WO
WIPO (PCT)
Prior art keywords
signal
stereo
reference signal
outputs
inputs
Prior art date
Application number
PCT/RU1998/000355
Other languages
French (fr)
Other versions
WO1999014735A2 (en
Inventor
Mikhail Valentinovic Manouilov
Original Assignee
Mikhail Valentinovic Manouilov
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 Mikhail Valentinovic Manouilov filed Critical Mikhail Valentinovic Manouilov
Priority to AU15142/99A priority Critical patent/AU1514299A/en
Publication of WO1999014735A2 publication Critical patent/WO1999014735A2/en
Publication of WO1999014735A3 publication Critical patent/WO1999014735A3/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S1/00—Two-channel systems
    • 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
    • H04S7/302—Electronic adaptation of stereophonic sound system to listener position or orientation
    • H04S7/303—Tracking of listener position or orientation
    • H04S7/304—For headphones

Abstract

The present invention relates to the art of stereo sound reproducing systems. An acoustic signal reproducing apparatus comprises an acoustic stereo signal source (1) which generates at its outputs the left and right channel stereo signals and is connected to the inputs of stereo signal preprocessing means (2); the stereo signal preprocessing means (2) comprising first and second low-pass filters (3, 4) and first and second two-input adders (5, 6); a variable delay circuit (7) comprising first and second delay lines (8, 9) with their signal inputs connected to outputs of the stereo signal preprocessing means (2); sound signal reproducing means (10, 11) connected with their inputs to the outputs of the delay lines (8, 9); a reference signal source (12) comprising a reference signal generator (13) and a reference signal emitter (14); a reference signal receiver (15); and calculating means (16) for calculating an angular orientation of the listener's head.
PCT/RU1998/000355 1997-09-05 1998-09-04 Acoustic signal reproducing apparatus WO1999014735A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU15142/99A AU1514299A (en) 1997-09-05 1998-09-04 Acoustic signal reproducing apparatus

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
RU97114612A RU2109412C1 (en) 1997-09-05 1997-09-05 System reproducing acoustic stereosignal
RU97114612 1997-09-05

Publications (2)

Publication Number Publication Date
WO1999014735A2 WO1999014735A2 (en) 1999-03-25
WO1999014735A3 true WO1999014735A3 (en) 1999-12-02

Family

ID=20196750

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/RU1998/000355 WO1999014735A2 (en) 1997-09-05 1998-09-04 Acoustic signal reproducing apparatus

Country Status (3)

Country Link
AU (1) AU1514299A (en)
RU (1) RU2109412C1 (en)
WO (1) WO1999014735A2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1341398B1 (en) * 2002-02-21 2004-12-15 Siemens Aktiengesellschaft Portable audio system
GB2437401B (en) * 2006-04-19 2008-07-30 Big Bean Audio Ltd Processing audio input signals
US10015620B2 (en) * 2009-02-13 2018-07-03 Koninklijke Philips N.V. Head tracking
KR101588028B1 (en) * 2009-06-05 2016-02-12 코닌클리케 필립스 엔.브이. A surround sound system and method therefor

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3962543A (en) * 1973-06-22 1976-06-08 Eugen Beyer Elektrotechnische Fabrik Method and arrangement for controlling acoustical output of earphones in response to rotation of listener's head
EP0438281A2 (en) * 1990-01-19 1991-07-24 Sony Corporation Acoustic signal reproducing apparatus
GB2282306A (en) * 1993-09-21 1995-03-29 Sony Corp Headphones correcting for listener's head motion
WO1995017799A1 (en) * 1993-12-21 1995-06-29 Central Research Laboratories Limited Apparatus for audio signal stereophonic adjustment

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3962543A (en) * 1973-06-22 1976-06-08 Eugen Beyer Elektrotechnische Fabrik Method and arrangement for controlling acoustical output of earphones in response to rotation of listener's head
EP0438281A2 (en) * 1990-01-19 1991-07-24 Sony Corporation Acoustic signal reproducing apparatus
GB2282306A (en) * 1993-09-21 1995-03-29 Sony Corp Headphones correcting for listener's head motion
WO1995017799A1 (en) * 1993-12-21 1995-06-29 Central Research Laboratories Limited Apparatus for audio signal stereophonic adjustment

Also Published As

Publication number Publication date
RU2109412C1 (en) 1998-04-20
WO1999014735A2 (en) 1999-03-25
AU1514299A (en) 1999-04-05

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