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WO2000070913A3 - Centralizing of a spatially expanded stereophonic audio image - Google Patents

Centralizing of a spatially expanded stereophonic audio image Download PDF

Info

Publication number
WO2000070913A3
WO2000070913A3 PCT/US2000/013049 US0013049W WO0070913A3 WO 2000070913 A3 WO2000070913 A3 WO 2000070913A3 US 0013049 W US0013049 W US 0013049W WO 0070913 A3 WO0070913 A3 WO 0070913A3
Authority
WO
WIPO (PCT)
Prior art keywords
signal
centralizing
bass
sum
audio image
Prior art date
Application number
PCT/US2000/013049
Other languages
French (fr)
Other versions
WO2000070913A2 (en
WO2000070913A9 (en
Inventor
Robert Edward Morris Jr
Original Assignee
Thomson Licensing Sa
Robert Edward Morris Jr
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 Thomson Licensing Sa, Robert Edward Morris Jr filed Critical Thomson Licensing Sa
Priority to MXPA01011426A priority Critical patent/MXPA01011426A/en
Priority to DE60013807T priority patent/DE60013807T2/en
Priority to EP00932346A priority patent/EP1177707B1/en
Priority to JP2000619239A priority patent/JP4868647B2/en
Priority to AU50081/00A priority patent/AU5008100A/en
Priority to US10/009,141 priority patent/US6711265B1/en
Publication of WO2000070913A2 publication Critical patent/WO2000070913A2/en
Publication of WO2000070913A3 publication Critical patent/WO2000070913A3/en
Publication of WO2000070913A9 publication Critical patent/WO2000070913A9/en

Links

Classifications

    • 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 
    • H04S1/00—Two-channel systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/04—Circuits for transducers, loudspeakers or microphones for correcting frequency response
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Stereophonic System (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)

Abstract

In a stereophonic system having sum and difference signals with expanded spatial imaging, localization of center audio materials more towards the center is accomplished by equlization of the (L+R) sum signal. The equalization comprises decreasing the bass response while increasing the treble response of the sum signal with the desired bass reduction being accomplished by the use of a gyrator to economically synthesize an inductance. Additionally, the equalizations in the (L+R) sum signal to reduce the signal at bass frequencies and to increase the signal at treble frequencies are switchable singly or in combination between 'ON' and 'OFF' modes.
PCT/US2000/013049 1999-05-13 2000-05-12 Centralizing of a spatially expanded stereophonic audio image WO2000070913A2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
MXPA01011426A MXPA01011426A (en) 1999-05-13 2000-05-12 Centralizing of a spatially expanded stereophonic audio image.
DE60013807T DE60013807T2 (en) 1999-05-13 2000-05-12 CENTERING OF A SPATIALLY EXPANDED STEREOPHONIC SOUND IMAGE
EP00932346A EP1177707B1 (en) 1999-05-13 2000-05-12 Centralizing of a spatially expanded stereophonic audio image
JP2000619239A JP4868647B2 (en) 1999-05-13 2000-05-12 Centralizing spatially expanded stereo audio images
AU50081/00A AU5008100A (en) 1999-05-13 2000-05-12 Centralizing of a spatially expanded stereophonic audio image
US10/009,141 US6711265B1 (en) 1999-05-13 2000-05-12 Centralizing of a spatially expanded stereophonic audio image

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US13400599P 1999-05-13 1999-05-13
US60/134,005 1999-05-13

Publications (3)

Publication Number Publication Date
WO2000070913A2 WO2000070913A2 (en) 2000-11-23
WO2000070913A3 true WO2000070913A3 (en) 2001-08-16
WO2000070913A9 WO2000070913A9 (en) 2002-04-18

Family

ID=22461328

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2000/013049 WO2000070913A2 (en) 1999-05-13 2000-05-12 Centralizing of a spatially expanded stereophonic audio image

Country Status (8)

Country Link
EP (1) EP1177707B1 (en)
JP (1) JP4868647B2 (en)
KR (1) KR100699454B1 (en)
CN (1) CN1227950C (en)
AU (1) AU5008100A (en)
DE (1) DE60013807T2 (en)
MX (1) MXPA01011426A (en)
WO (1) WO2000070913A2 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7675828B2 (en) 2003-02-25 2010-03-09 Lg Electronics Inc. Recording medium having data structure for managing at least a data area of the recording medium and recording and reproducing methods and apparatuses
CN1308952C (en) * 2003-03-03 2007-04-04 三星电子株式会社 Method and apparatus for managing disc defect and disc therefor
KR101036476B1 (en) 2003-07-04 2011-05-24 엘지전자 주식회사 Method and apparatus for managing a overwrite recording on optical disc write once
KR101113866B1 (en) 2004-03-19 2012-03-02 엘지전자 주식회사 Data structure for a recording medium and method and apparatus of recording data on the recording medium
KR101024916B1 (en) 2004-03-19 2011-03-31 엘지전자 주식회사 Method for writing data in high density optical write once disc and Apparatus for the same
KR101049117B1 (en) 2004-06-08 2011-07-14 엘지전자 주식회사 Method and apparatus for recording management information on optical write once disc
KR101014727B1 (en) 2004-06-23 2011-02-16 엘지전자 주식회사 Method and Apparatus for managing a overwrite in Optical write once disc
KR101012378B1 (en) 2004-08-16 2011-02-09 엘지전자 주식회사 Method and Apparatus for recording / reproducing in Optical storage
WO2006031052A2 (en) 2004-09-14 2006-03-23 Lg Electronics Inc. Recording medium, and method and apparatus of recording and reproducing data on the same
GB2419265B (en) 2004-10-18 2009-03-11 Wolfson Ltd Improved audio processing
KR101227485B1 (en) 2005-11-25 2013-01-29 엘지전자 주식회사 Recording mdium, Method and Apparatus for recording defect management information on the recording medium
KR20070058292A (en) 2005-12-02 2007-06-08 엘지전자 주식회사 Recording medium, method and apparatus for recording/reproducing information on/from the recording medium

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4229716A (en) * 1979-05-15 1980-10-21 Northern Telecom Limited Amplitude equalizer circuit
US4451927A (en) * 1982-03-24 1984-05-29 Harris Corporation Separation correction method and apparatus for plural channel transmission system
US4866774A (en) * 1988-11-02 1989-09-12 Hughes Aircraft Company Stero enhancement and directivity servo

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4748669A (en) * 1986-03-27 1988-05-31 Hughes Aircraft Company Stereo enhancement system
US4759065A (en) * 1986-09-22 1988-07-19 Harman International Industries, Incorporated Automotive sound system
JP2767389B2 (en) * 1994-11-08 1998-06-18 ローム株式会社 Equalizer and audio device using the same
US5692050A (en) * 1995-06-15 1997-11-25 Binaura Corporation Method and apparatus for spatially enhancing stereo and monophonic signals
JPH09252500A (en) * 1996-03-15 1997-09-22 Shuichi Sato Stereo reproduction system in audio equipment
EP0808076B1 (en) * 1996-05-17 2007-11-21 Micronas GmbH Surround sound system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4229716A (en) * 1979-05-15 1980-10-21 Northern Telecom Limited Amplitude equalizer circuit
US4451927A (en) * 1982-03-24 1984-05-29 Harris Corporation Separation correction method and apparatus for plural channel transmission system
US4866774A (en) * 1988-11-02 1989-09-12 Hughes Aircraft Company Stero enhancement and directivity servo

Also Published As

Publication number Publication date
EP1177707B1 (en) 2004-09-15
DE60013807D1 (en) 2004-10-21
WO2000070913A2 (en) 2000-11-23
KR100699454B1 (en) 2007-03-27
DE60013807T2 (en) 2005-04-14
KR20010110799A (en) 2001-12-13
JP4868647B2 (en) 2012-02-01
WO2000070913A9 (en) 2002-04-18
JP2003500916A (en) 2003-01-07
CN1364393A (en) 2002-08-14
MXPA01011426A (en) 2002-06-04
EP1177707A2 (en) 2002-02-06
AU5008100A (en) 2000-12-05
CN1227950C (en) 2005-11-16

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