CA2467938C - Method for improving spatial perception in virtual surround - Google Patents

Method for improving spatial perception in virtual surround Download PDF

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Publication number
CA2467938C
CA2467938C CA2467938A CA2467938A CA2467938C CA 2467938 C CA2467938 C CA 2467938C CA 2467938 A CA2467938 A CA 2467938A CA 2467938 A CA2467938 A CA 2467938A CA 2467938 C CA2467938 C CA 2467938C
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CA
Canada
Prior art keywords
headphone
sound channels
directions
channel
loudspeakers
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.)
Expired - Fee Related
Application number
CA2467938A
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English (en)
French (fr)
Other versions
CA2467938A1 (en
Inventor
Christophe Chabanne
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.)
Dolby Laboratories Licensing Corp
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Dolby Laboratories Licensing Corp
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 Dolby Laboratories Licensing Corp filed Critical Dolby Laboratories Licensing Corp
Publication of CA2467938A1 publication Critical patent/CA2467938A1/en
Application granted granted Critical
Publication of CA2467938C publication Critical patent/CA2467938C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S3/00—Systems employing more than two channels, e.g. quadraphonic
    • H04S3/002—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 
    • H04S3/00—Systems employing more than two channels, e.g. quadraphonic
    • 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 
    • 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
    • H04S2420/01—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)
CA2467938A 2001-12-18 2002-12-06 Method for improving spatial perception in virtual surround Expired - Fee Related CA2467938C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US34431501P 2001-12-18 2001-12-18
US60/344,315 2001-12-18
PCT/US2002/038915 WO2003053099A1 (en) 2001-12-18 2002-12-06 Method for improving spatial perception in virtual surround

Publications (2)

Publication Number Publication Date
CA2467938A1 CA2467938A1 (en) 2003-06-26
CA2467938C true CA2467938C (en) 2013-11-05

Family

ID=23349999

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2467938A Expired - Fee Related CA2467938C (en) 2001-12-18 2002-12-06 Method for improving spatial perception in virtual surround

Country Status (11)

Country Link
US (1) US8155323B2 (enExample)
EP (1) EP1457092A1 (enExample)
JP (1) JP2005513892A (enExample)
KR (1) KR101004393B1 (enExample)
CN (1) CN1605226B (enExample)
AU (1) AU2002346672B2 (enExample)
CA (1) CA2467938C (enExample)
MX (1) MXPA04005895A (enExample)
MY (1) MY147427A (enExample)
TW (1) TWI230024B (enExample)
WO (1) WO2003053099A1 (enExample)

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CN104394498B (zh) * 2014-09-28 2017-01-18 北京塞宾科技有限公司 一种三通道全息声场回放方法及声场采集装置
WO2016131471A1 (en) 2015-02-16 2016-08-25 Huawei Technologies Co., Ltd. An audio signal processing apparatus and method for crosstalk reduction of an audio signal
CN107258090B (zh) 2015-02-18 2019-07-19 华为技术有限公司 音频信号处理装置和音频信号滤波方法
TWI554943B (zh) * 2015-08-17 2016-10-21 李鵬 音訊處理方法及其系統
AU2016353143A1 (en) * 2015-11-10 2018-05-17 Lee F. Bender Digital audio processing systems and methods
CN106899920A (zh) * 2016-10-28 2017-06-27 广州奥凯电子有限公司 一种声音信号处理方法及系统
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Also Published As

Publication number Publication date
CN1605226A (zh) 2005-04-06
TW200301663A (en) 2003-07-01
MXPA04005895A (es) 2004-09-13
KR101004393B1 (ko) 2010-12-28
CN1605226B (zh) 2010-12-01
US20050129249A1 (en) 2005-06-16
EP1457092A1 (en) 2004-09-15
KR20040068283A (ko) 2004-07-30
AU2002346672B2 (en) 2008-02-14
AU2002346672A1 (en) 2003-06-30
HK1075167A1 (en) 2005-12-02
WO2003053099A1 (en) 2003-06-26
CA2467938A1 (en) 2003-06-26
JP2005513892A (ja) 2005-05-12
TWI230024B (en) 2005-03-21
US8155323B2 (en) 2012-04-10
MY147427A (en) 2012-12-14

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Effective date: 20171206