DE69714782D1 - Mehrkanal-audioverbesserungssystem zur verwendung in aufzeichnung und wiedergabe und verfahren zu seiner herstellung - Google Patents

Mehrkanal-audioverbesserungssystem zur verwendung in aufzeichnung und wiedergabe und verfahren zu seiner herstellung

Info

Publication number
DE69714782D1
DE69714782D1 DE69714782T DE69714782T DE69714782D1 DE 69714782 D1 DE69714782 D1 DE 69714782D1 DE 69714782 T DE69714782 T DE 69714782T DE 69714782 T DE69714782 T DE 69714782T DE 69714782 D1 DE69714782 D1 DE 69714782D1
Authority
DE
Germany
Prior art keywords
signals
playback
pair
channel audio
intended
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 - Lifetime
Application number
DE69714782T
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English (en)
Other versions
DE69714782T2 (de
Inventor
I Klayman
D Kraemer
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.)
DTS LLC
Original Assignee
SRS Labs Inc
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 SRS Labs Inc filed Critical SRS Labs Inc
Publication of DE69714782D1 publication Critical patent/DE69714782D1/de
Application granted granted Critical
Publication of DE69714782T2 publication Critical patent/DE69714782T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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 
    • H04S3/00—Systems employing more than two channels, e.g. quadraphonic
    • H04S3/008—Systems employing more than two channels, e.g. quadraphonic in which the audio signals are in digital form, i.e. employing more than two discrete digital channels
    • 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]
DE69714782T 1996-11-07 1997-10-31 Mehrkanal-audioverbesserungssystem zur verwendung in aufzeichnung und wiedergabe und verfahren zu seiner herstellung Expired - Lifetime DE69714782T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/743,776 US5912976A (en) 1996-11-07 1996-11-07 Multi-channel audio enhancement system for use in recording and playback and methods for providing same
PCT/US1997/019825 WO1998020709A1 (en) 1996-11-07 1997-10-31 Multi-channel audio enhancement system for use in recording and playback and methods for providing same

Publications (2)

Publication Number Publication Date
DE69714782D1 true DE69714782D1 (de) 2002-09-19
DE69714782T2 DE69714782T2 (de) 2002-12-05

Family

ID=24990122

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69714782T Expired - Lifetime DE69714782T2 (de) 1996-11-07 1997-10-31 Mehrkanal-audioverbesserungssystem zur verwendung in aufzeichnung und wiedergabe und verfahren zu seiner herstellung

Country Status (14)

Country Link
US (4) US5912976A (de)
EP (1) EP0965247B1 (de)
JP (1) JP4505058B2 (de)
KR (1) KR100458021B1 (de)
CN (1) CN1171503C (de)
AT (1) ATE222444T1 (de)
AU (1) AU5099298A (de)
CA (1) CA2270664C (de)
DE (1) DE69714782T2 (de)
ES (1) ES2182052T3 (de)
HK (1) HK1011257A1 (de)
ID (1) ID18503A (de)
TW (1) TW396713B (de)
WO (1) WO1998020709A1 (de)

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EP0965247A1 (de) 1999-12-22
US7492907B2 (en) 2009-02-17
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CN1171503C (zh) 2004-10-13
KR20000053152A (ko) 2000-08-25
AU5099298A (en) 1998-05-29
JP4505058B2 (ja) 2010-07-14
HK1011257A1 (en) 1999-07-09
ATE222444T1 (de) 2002-08-15
CA2270664C (en) 2006-04-25
EP0965247B1 (de) 2002-08-14
WO1998020709A1 (en) 1998-05-14
ID18503A (id) 1998-04-16
TW396713B (en) 2000-07-01
US5912976A (en) 1999-06-15
DE69714782T2 (de) 2002-12-05
CA2270664A1 (en) 1998-05-14
US7200236B1 (en) 2007-04-03
CN1189081A (zh) 1998-07-29
US8472631B2 (en) 2013-06-25
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US20070165868A1 (en) 2007-07-19
US20090190766A1 (en) 2009-07-30

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