WO2003059005A3 - Digital loudspeaker system - Google Patents

Digital loudspeaker system Download PDF

Info

Publication number
WO2003059005A3
WO2003059005A3 PCT/GB2003/000040 GB0300040W WO03059005A3 WO 2003059005 A3 WO2003059005 A3 WO 2003059005A3 GB 0300040 W GB0300040 W GB 0300040W WO 03059005 A3 WO03059005 A3 WO 03059005A3
Authority
WO
WIPO (PCT)
Prior art keywords
loudspeaker system
sound
transducers
channel
digital audio
Prior art date
Application number
PCT/GB2003/000040
Other languages
French (fr)
Other versions
WO2003059005A2 (en
Inventor
Paul Thomas Troughton
Anthony Hooley
Angus Gavin Goudie
Mark George Easton
Irving Alexander Bienek
James Davies
Damon Thomas Ryan
Paul Raymond Windle
Original Assignee
1 Ltd
Paul Thomas Troughton
Anthony Hooley
Angus Gavin Goudie
Mark George Easton
Irving Alexander Bienek
James Davies
Damon Thomas Ryan
Paul Raymond Windle
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 1 Ltd, Paul Thomas Troughton, Anthony Hooley, Angus Gavin Goudie, Mark George Easton, Irving Alexander Bienek, James Davies, Damon Thomas Ryan, Paul Raymond Windle filed Critical 1 Ltd
Priority to AU2003201640A priority Critical patent/AU2003201640A1/en
Priority to GB0414900A priority patent/GB2398959A/en
Publication of WO2003059005A2 publication Critical patent/WO2003059005A2/en
Publication of WO2003059005A3 publication Critical patent/WO2003059005A3/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
    • H04R1/40—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers
    • H04R1/403—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers loud-speakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/005—Details of transducers, loudspeakers or microphones using digitally weighted transducing elements
    • 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
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/26—Spatial arrangements of separate transducers responsive to two or more frequency ranges
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2203/00—Details of circuits for transducers, loudspeakers or microphones covered by H04R3/00 but not provided for in any of its subgroups
    • H04R2203/12—Beamforming aspects for stereophonic sound reproduction with loudspeaker arrays
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2205/00—Details of stereophonic arrangements covered by H04R5/00 but not provided for in any of its subgroups
    • H04R2205/022—Plurality of transducers corresponding to a plurality of sound channels in each earpiece of headphones or in a single enclosure

Abstract

A loudspeaker system is described for multi-channel digital audio inputs having a digital signal processing system with one or more internal system clocks, driving an array of more than five acoustic output-transducers, the whole being capable of producing two or more independently steerable beams of sound, the sound in each beam independently corresponding to the content of one channel only or a combination of two or more of the channels of the digital audio inputs, and linear output drivers to drive the acoustic output transducers.
PCT/GB2003/000040 2002-01-08 2003-01-08 Digital loudspeaker system WO2003059005A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU2003201640A AU2003201640A1 (en) 2002-01-08 2003-01-08 Digital loudspeaker system
GB0414900A GB2398959A (en) 2002-01-08 2003-01-08 Digital loudspeaker system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0200291A GB0200291D0 (en) 2002-01-08 2002-01-08 Digital loudspeaker system
GB0200291.3 2002-01-08

Publications (2)

Publication Number Publication Date
WO2003059005A2 WO2003059005A2 (en) 2003-07-17
WO2003059005A3 true WO2003059005A3 (en) 2003-12-04

Family

ID=9928726

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2003/000040 WO2003059005A2 (en) 2002-01-08 2003-01-08 Digital loudspeaker system

Country Status (3)

Country Link
AU (1) AU2003201640A1 (en)
GB (2) GB0200291D0 (en)
WO (1) WO2003059005A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101884225A (en) * 2006-05-22 2010-11-10 奥迪欧彼塞尔斯有限公司 Direct digital speaker apparatus having a desired directivity pattern

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2393601B (en) * 2002-07-19 2005-09-21 1 Ltd Digital loudspeaker system
CN1930915B (en) * 2004-03-11 2012-08-29 Pss比利时股份有限公司 A method and system for processing sound signals
JP2006340057A (en) * 2005-06-02 2006-12-14 Yamaha Corp Array speaker system
US8457338B2 (en) 2006-05-22 2013-06-04 Audio Pixels Ltd. Apparatus and methods for generating pressure waves
WO2007135679A2 (en) 2006-05-22 2007-11-29 Audio Pixels Ltd. Volume and tone control in direct digital speakers
KR101411183B1 (en) 2007-05-21 2014-06-23 오디오 픽셀즈 리미티드 Direct digital speaker apparatus having a desired directivity pattern
CN104506974B (en) 2007-11-21 2018-06-05 奥迪欧彼塞尔斯有限公司 Actuator devices and actuating system
JP5754818B2 (en) 2010-03-11 2015-07-29 オーディオ ピクセルズ エルティーディー．Ａｕｄｉｏ Ｐｉｘｅｌｓ Ｌｔｄ． Electrostatic parallel plate actuator in which movable element is driven only by electrostatic force, and method effective therefor
US9425708B2 (en) 2010-11-26 2016-08-23 Audio Pixels Ltd. Apparatus and methods for individual addressing and noise reduction in actuator arrays
DK2856769T3 (en) 2012-05-25 2018-10-22 Audio Pixels Ltd SYSTEM, PROCEDURE AND COMPUTER PROGRAM PRODUCT TO CONTROL A GROUP OF ACTUATOR SYSTEMS FOR CREATING A PHYSICAL EFFECT
EP2856770B1 (en) 2012-05-25 2018-07-04 Audio Pixels Ltd. A system, a method and a computer program product for controlling a set of actuator elements
US10070211B2 (en) 2013-06-28 2018-09-04 Kopin Corporation Digital voice processing method and system for headset computer
CN107533134B (en) 2015-04-15 2021-04-27 音频像素有限公司 Camera, audio sound system, method and system for detecting position of object
CN116320901B (en) * 2023-05-15 2023-08-29 之江实验室 Sound field regulating and controlling system and method thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4769848A (en) * 1980-05-05 1988-09-06 Howard Krausse Electroacoustic network
WO2001023104A2 (en) * 1999-09-29 2001-04-05 1...Limited Method and apparatus to direct sound using an array of output transducers
EP1122973A2 (en) * 1995-03-31 2001-08-08 1...Ipr Limited Digital pulse-width-modulation generator

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4769848A (en) * 1980-05-05 1988-09-06 Howard Krausse Electroacoustic network
EP1122973A2 (en) * 1995-03-31 2001-08-08 1...Ipr Limited Digital pulse-width-modulation generator
WO2001023104A2 (en) * 1999-09-29 2001-04-05 1...Limited Method and apparatus to direct sound using an array of output transducers

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101884225A (en) * 2006-05-22 2010-11-10 奥迪欧彼塞尔斯有限公司 Direct digital speaker apparatus having a desired directivity pattern
CN101884225B (en) * 2006-05-22 2013-12-04 奥迪欧彼塞尔斯有限公司 Direct digital speaker apparatus having a desired directivity pattern and control method thereof

Also Published As

Publication number Publication date
GB0200291D0 (en) 2002-02-20
WO2003059005A2 (en) 2003-07-17
AU2003201640A1 (en) 2003-07-24
GB0414900D0 (en) 2004-08-04
GB2398959A (en) 2004-09-01
AU2003201640A8 (en) 2003-07-24

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