CA2048686A1 - Audio signal reproducing apparatus - Google Patents

Audio signal reproducing apparatus

Info

Publication number
CA2048686A1
CA2048686A1 CA2048686A CA2048686A CA2048686A1 CA 2048686 A1 CA2048686 A1 CA 2048686A1 CA 2048686 A CA2048686 A CA 2048686A CA 2048686 A CA2048686 A CA 2048686A CA 2048686 A1 CA2048686 A1 CA 2048686A1
Authority
CA
Canada
Prior art keywords
transfer characteristics
information
listener
head
audio signal
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.)
Granted
Application number
CA2048686A
Other languages
French (fr)
Other versions
CA2048686C (en
Inventor
Kiyofumi Inanaga
Hiroyuki Sogawa
Yasuhiro Iida
Susumu Yabe
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sony Corp
Original Assignee
Individual
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 JP2008514A external-priority patent/JP2751512B2/en
Priority claimed from JP2008520A external-priority patent/JP2893780B2/en
Application filed by Individual filed Critical Individual
Publication of CA2048686A1 publication Critical patent/CA2048686A1/en
Application granted granted Critical
Publication of CA2048686C publication Critical patent/CA2048686C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • H04R5/033—Headphones for stereophonic communication
    • 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
    • H04S1/005—For headphones

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Stereophonic System (AREA)
  • Stereophonic Arrangements (AREA)

Abstract

In the audio signal reproducing apparatus, information on the transfer characteristics representative of the transfer characteristics from virtual sound sources to both ears of a listener in at least a first quadrant of the rotational angular position of the head M of the listener is stored in storing means 22. The transfer characteristics in rotational angular position of the head M represented by detection outputs from detecting means 5L, 5R and 13 for detecting the rotational angle position depending upon the movement of the head of the listener are formed based upon the transfer characteristics information of at least the first quadrant stored in the storing means and left and right channel audio signals are processed by audio signal processing means 23 for achieving a proper binaural reproduction relative to the virtual sound sources.
Also in the audio signal processing apparatus of the present invention, information on the transfer characteristics from virtual sound sources to both ears of a listener for each given rotational angle depending upon the movement of the head M of the listener is stored in storing means 62. The rotational angular position of the head of the listener is detected by detecting means 45L, 45R and 53 at a solution higher than that of the information of the transfer characteristics stored in said storing means. The information on at least two transfer characteristics in the vicinity of the rotational angular position represented by the detection outputs from detecting means is read from the storing means. The information on the transfer characteristics in the rotational angular position of the head represented by the detection output is interpolation operated by interpolation operating means 61. Based upon the information on the transfer characteristics determined by the interpolation operation means, left and right channel audio signals are processed by audio signal processing means 63 for achieving a proper binaural reproduction relative to the virtual sound sources.
CA002048686A 1990-01-19 1991-01-18 Audio signal reproducing apparatus Expired - Lifetime CA2048686C (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JPP2-008520 1990-01-19
JP2008514A JP2751512B2 (en) 1990-01-19 1990-01-19 Sound signal reproduction device
JP2008520A JP2893780B2 (en) 1990-01-19 1990-01-19 Sound signal reproduction device
JPP2-008514 1990-01-19
PCT/JP1991/000057 WO1991011080A1 (en) 1990-01-19 1991-01-18 Apparatus for reproducing acoustic signals

Publications (2)

Publication Number Publication Date
CA2048686A1 true CA2048686A1 (en) 1991-07-20
CA2048686C CA2048686C (en) 2001-01-02

Family

ID=26343043

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002048686A Expired - Lifetime CA2048686C (en) 1990-01-19 1991-01-18 Audio signal reproducing apparatus

Country Status (5)

Country Link
EP (2) EP0464217B1 (en)
KR (1) KR920702175A (en)
CA (1) CA2048686C (en)
DE (2) DE69132430T2 (en)
WO (1) WO1991011080A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0795698A (en) * 1993-09-21 1995-04-07 Sony Corp Audio reproducing device
EP0744881B1 (en) * 1995-05-22 2004-07-14 Victor Company Of Japan, Ltd. Headphone reproducing apparatus
JP3577798B2 (en) * 1995-08-31 2004-10-13 ソニー株式会社 Headphone equipment
FR2744871B1 (en) * 1996-02-13 1998-03-06 Sextant Avionique SOUND SPATIALIZATION SYSTEM, AND PERSONALIZATION METHOD FOR IMPLEMENTING SAME
WO2007112756A2 (en) * 2006-04-04 2007-10-11 Aalborg Universitet System and method tracking the position of a listener and transmitting binaural audio data to the listener
EP2288178B1 (en) * 2009-08-17 2012-06-06 Nxp B.V. A device for and a method of processing audio data
US9706304B1 (en) * 2016-03-29 2017-07-11 Lenovo (Singapore) Pte. Ltd. Systems and methods to control audio output for a particular ear of a user

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5419242B2 (en) 1973-06-22 1979-07-13
JPS5165901A (en) * 1974-12-05 1976-06-08 Sony Corp
US4076677A (en) 1976-06-23 1978-02-28 Desoto, Inc. Aqueous copolymer dispersions and method of producing the same
JPS54109401A (en) * 1978-02-16 1979-08-28 Victor Co Of Japan Ltd Signal converter
JPS58116900A (en) * 1982-11-15 1983-07-12 Sony Corp Stereophonic reproducing device
US4893342A (en) * 1987-10-15 1990-01-09 Cooper Duane H Head diffraction compensated stereo system
JP2671329B2 (en) * 1987-11-05 1997-10-29 ソニー株式会社 Audio player
JP3155592B2 (en) * 1991-12-11 2001-04-09 武藤工業株式会社 Method and apparatus for correcting progressive dimensions

Also Published As

Publication number Publication date
CA2048686C (en) 2001-01-02
DE69120150T2 (en) 1996-12-12
EP0464217A1 (en) 1992-01-08
DE69132430D1 (en) 2000-11-02
WO1991011080A1 (en) 1991-07-25
EP0664660B1 (en) 2000-09-27
DE69132430T2 (en) 2001-04-05
EP0464217A4 (en) 1992-06-24
KR920702175A (en) 1992-08-12
EP0464217B1 (en) 1996-06-12
DE69120150D1 (en) 1996-07-18
EP0664660A3 (en) 1995-08-09
EP0664660A2 (en) 1995-07-26

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Legal Events

Date Code Title Description
EEER Examination request
MKEX Expiry