MY124476A - Headphone reproducing apparatus. - Google Patents

Headphone reproducing apparatus.

Info

Publication number
MY124476A
MY124476A MYPI96001922A MYPI19961922A MY124476A MY 124476 A MY124476 A MY 124476A MY PI96001922 A MYPI96001922 A MY PI96001922A MY PI19961922 A MYPI19961922 A MY PI19961922A MY 124476 A MY124476 A MY 124476A
Authority
MY
Malaysia
Prior art keywords
channel input
sound
multiplier
pass filter
low
Prior art date
Application number
MYPI96001922A
Inventor
Suzuki Takuma
Okada Toshikazu
Matsumoto Mitsuo
Original Assignee
Victor Company Of Japan
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 JP7148323A external-priority patent/JP2900985B2/en
Application filed by Victor Company Of Japan filed Critical Victor Company Of Japan
Publication of MY124476A publication Critical patent/MY124476A/en

Links

Classifications

    • 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 
    • 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
    • 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

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

Abstract

A HEADPHONE REPRODUCING APPARATUS CREATES A VIRTUAL SOUND. A LISTENER FEELS AS IF A SOUND CAME FROM A VIRTUAL SOUND SOURCE THAT IMAGINARILY EXISTS IN A SPACE APART FROM THE LISTENER. A DELAY CIRCUIT (13R, 13L) DELAYS A FIRST-CHANNEL INPUT AUDIO SIGNAL AND A SECOND-CHANNEL INPUT AUDIO SIGNAL BY PREDETERMINED DELAY TIMES. A LOW-PASS FILTER (14R, 14L) CHANGES FREQUENCY CHARACTERISTICS OF THE FIRST- AND SECOND-CHANNEL INPUT SIGNALS TO PREDETERMINED FREQUENCY CHARACTERISTICS. A MULTIPLIER (15R, 15L) CHANGES SOUND LEVELS OF THE FIRST- AND SECOND-CHANNEL INPUT AUDIO SIGNALS TO PREDETERMINED SOUND LEVELS. THE DELAY CIRCUIT (13R, 13L), LOW-PASS FILTER (14R, 14L), AND MULTIPLIER (15R, 15L) ARE CONNECTED IN SERIES TO EACH OTHER. A HEADPHONE REPRODUCES THE FIRST- AND SECOND-CHANNEL INPUT SIGNALS PROCESSED BY THE DELAY CIRCUIT (13R, 13L), LOW-PASS FILTER (14R, 14L), AND MULTIPLIER (15R, 15L) AS THE SOUND THAT COMES FROM THE VIRTUAL SOUND SOURCE. (FIG. 4)
MYPI96001922A 1995-05-22 1996-05-22 Headphone reproducing apparatus. MY124476A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7148323A JP2900985B2 (en) 1994-05-31 1995-05-22 Headphone playback device

Publications (1)

Publication Number Publication Date
MY124476A true MY124476A (en) 2006-06-30

Family

ID=15450221

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI96001922A MY124476A (en) 1995-05-22 1996-05-22 Headphone reproducing apparatus.

Country Status (5)

Country Link
EP (1) EP0744881B1 (en)
CN (1) CN1108083C (en)
DE (1) DE69632889T2 (en)
MY (1) MY124476A (en)
SG (1) SG89238A1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW410527B (en) * 1998-01-08 2000-11-01 Sanyo Electric Co Stereo sound processing device
WO2006137400A1 (en) 2005-06-21 2006-12-28 Japan Science And Technology Agency Mixing device, method, and program
WO2013076534A1 (en) * 2011-11-21 2013-05-30 Sony Ericsson Mobile Communications Ab Determining direction of a display associated with an earphone set
TWI498014B (en) * 2012-07-11 2015-08-21 Univ Nat Cheng Kung Method for generating optimal sound field using speakers
CN106714017B (en) * 2015-07-17 2019-08-23 中兴通讯股份有限公司 A kind of method, apparatus, terminal and earphone adjusting earphone sound field
CN105307086A (en) * 2015-11-18 2016-02-03 王宋伟 Method and system for simulating surround sound for two-channel headset
CN105578355B (en) 2015-12-23 2019-02-26 惠州Tcl移动通信有限公司 A kind of method and system enhancing virtual reality glasses audio
CN110740415B (en) * 2018-07-20 2022-04-26 宏碁股份有限公司 Sound effect output device, arithmetic device and sound effect control method thereof
CN109640226A (en) * 2018-11-10 2019-04-16 东莞市华睿电子科技有限公司 A kind of earpiece audio is converted into the control method of Virtual Sound
CN112437385A (en) * 2020-11-19 2021-03-02 袁志钢 Earphone set

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5175429A (en) * 1974-12-25 1976-06-30 Matsushita Electric Ind Co Ltd
JPS58198999A (en) * 1982-05-17 1983-11-19 Matsushita Electric Ind Co Ltd Sound image controller
GB2220818A (en) * 1988-07-15 1990-01-17 Gary Keith Henry Stereo systems
GB8900330D0 (en) * 1989-01-07 1990-04-25 British Aerospace Binaural display apparatus
JPH02219400A (en) * 1989-02-20 1990-08-31 Sanyo Electric Co Ltd Stereophonic sound reproducing device
EP0664660B1 (en) * 1990-01-19 2000-09-27 Sony Corporation Audio signal reproducing apparatus
WO1993026085A1 (en) * 1992-06-05 1993-12-23 Noise Cancellation Technologies Active/passive headset with speech filter
JPH0682242A (en) * 1992-08-31 1994-03-22 Victor Co Of Japan Ltd Three-dimensional position/attitude detection method

Also Published As

Publication number Publication date
SG89238A1 (en) 2002-06-18
DE69632889T2 (en) 2005-07-21
CN1108083C (en) 2003-05-07
DE69632889D1 (en) 2004-08-19
EP0744881A2 (en) 1996-11-27
EP0744881A3 (en) 1999-06-09
CN1140968A (en) 1997-01-22
EP0744881B1 (en) 2004-07-14

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