AU2004310176B2 - Audio signal processing system and method - Google Patents

Audio signal processing system and method Download PDF

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Publication number
AU2004310176B2
AU2004310176B2 AU2004310176A AU2004310176A AU2004310176B2 AU 2004310176 B2 AU2004310176 B2 AU 2004310176B2 AU 2004310176 A AU2004310176 A AU 2004310176A AU 2004310176 A AU2004310176 A AU 2004310176A AU 2004310176 B2 AU2004310176 B2 AU 2004310176B2
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AU
Australia
Prior art keywords
recited
feedback signal
input
signals
reverberator
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
Application number
AU2004310176A
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English (en)
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AU2004310176A1 (en
Inventor
Adam Richard Mckeag
Andrew Peter Reilly
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
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Publication date
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Publication of AU2004310176A1 publication Critical patent/AU2004310176A1/en
Assigned to DOLBY LABORATORIES LICENSING CORPORATION reassignment DOLBY LABORATORIES LICENSING CORPORATION Request for Assignment Assignors: LAKE TECHNOLOGY LIMITED
Application granted granted Critical
Publication of AU2004310176B2 publication Critical patent/AU2004310176B2/en
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Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H1/00—Details of electrophonic musical instruments
    • 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
    • H04S7/305—Electronic adaptation of stereophonic audio signals to reverberation of the listening space
    • H04S7/306—For headphones
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H1/00—Details of electrophonic musical instruments
    • G10H1/0091—Means for obtaining special acoustic effects
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H1/00—Details of electrophonic musical instruments
    • G10H1/02—Means for controlling the tone frequencies, e.g. attack or decay; Means for producing special musical effects, e.g. vibratos or glissandos
    • G10H1/06—Circuits for establishing the harmonic content of tones, or other arrangements for changing the tone colour
    • G10H1/12—Circuits for establishing the harmonic content of tones, or other arrangements for changing the tone colour by filtering complex waveforms
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H1/00—Details of electrophonic musical instruments
    • G10H1/02—Means for controlling the tone frequencies, e.g. attack or decay; Means for producing special musical effects, e.g. vibratos or glissandos
    • G10H1/06—Circuits for establishing the harmonic content of tones, or other arrangements for changing the tone colour
    • G10H1/12—Circuits for establishing the harmonic content of tones, or other arrangements for changing the tone colour by filtering complex waveforms
    • G10H1/125—Circuits for establishing the harmonic content of tones, or other arrangements for changing the tone colour by filtering complex waveforms using a digital filter
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K15/00—Acoustics not otherwise provided for
    • G10K15/08—Arrangements for producing a reverberation or echo sound
    • G10K15/12—Arrangements for producing a reverberation or echo sound using electronic time-delay networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S1/00—Two-channel systems
    • 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 
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H2210/00—Aspects or methods of musical processing having intrinsic musical character, i.e. involving musical theory or musical parameters or relying on musical knowledge, as applied in electrophonic musical tools or instruments
    • G10H2210/155—Musical effects
    • G10H2210/265—Acoustic effect simulation, i.e. volume, spatial, resonance or reverberation effects added to a musical sound, usually by appropriate filtering or delays
    • G10H2210/281—Reverberation or echo
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H2210/00—Aspects or methods of musical processing having intrinsic musical character, i.e. involving musical theory or musical parameters or relying on musical knowledge, as applied in electrophonic musical tools or instruments
    • G10H2210/155—Musical effects
    • G10H2210/265—Acoustic effect simulation, i.e. volume, spatial, resonance or reverberation effects added to a musical sound, usually by appropriate filtering or delays
    • G10H2210/295—Spatial effects, musical uses of multiple audio channels, e.g. stereo
    • G10H2210/301—Soundscape or sound field simulation, reproduction or control for musical purposes, e.g. surround or 3D sound; Granular synthesis
    • 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

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Stereophonic System (AREA)
  • Stereophonic Arrangements (AREA)
AU2004310176A 2003-11-12 2004-10-27 Audio signal processing system and method Expired AU2004310176B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US51978603P 2003-11-12 2003-11-12
US60/519,786 2003-11-12
PCT/AU2004/001479 WO2005048653A1 (en) 2003-11-12 2004-10-27 Audio signal processing system and method

Publications (2)

Publication Number Publication Date
AU2004310176A1 AU2004310176A1 (en) 2005-05-26
AU2004310176B2 true AU2004310176B2 (en) 2008-04-24

Family

ID=34590443

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2004310176A Expired AU2004310176B2 (en) 2003-11-12 2004-10-27 Audio signal processing system and method

Country Status (12)

Country Link
US (1) US7949141B2 (https=)
EP (1) EP1685743B1 (https=)
JP (2) JP5084264B2 (https=)
KR (1) KR101184641B1 (https=)
CN (1) CN1879450B (https=)
AU (1) AU2004310176B2 (https=)
CA (1) CA2545268C (https=)
DK (1) DK1685743T3 (https=)
ES (1) ES2404512T3 (https=)
IL (1) IL175272A (https=)
PL (1) PL1685743T3 (https=)
WO (1) WO2005048653A1 (https=)

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Also Published As

Publication number Publication date
CN1879450A (zh) 2006-12-13
KR101184641B1 (ko) 2012-09-20
IL175272A0 (en) 2006-09-05
EP1685743A1 (en) 2006-08-02
WO2005048653A1 (en) 2005-05-26
DK1685743T3 (da) 2013-04-15
CN1879450B (zh) 2010-04-28
JP2011223595A (ja) 2011-11-04
CA2545268A1 (en) 2005-05-26
ES2404512T3 (es) 2013-05-28
AU2004310176A1 (en) 2005-05-26
HK1092992A1 (en) 2007-02-16
EP1685743A4 (en) 2009-09-09
JP2007511140A (ja) 2007-04-26
KR20060120109A (ko) 2006-11-24
CA2545268C (en) 2015-04-28
IL175272A (en) 2012-04-30
US20050100171A1 (en) 2005-05-12
JP5084264B2 (ja) 2012-11-28
PL1685743T3 (pl) 2013-06-28
US7949141B2 (en) 2011-05-24
EP1685743B1 (en) 2013-02-27

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