GB2443593A - Apparatus and method of reproduction virtual sound of two channels - Google Patents

Apparatus and method of reproduction virtual sound of two channels Download PDF

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Publication number
GB2443593A
GB2443593A GB0804429A GB0804429A GB2443593A GB 2443593 A GB2443593 A GB 2443593A GB 0804429 A GB0804429 A GB 0804429A GB 0804429 A GB0804429 A GB 0804429A GB 2443593 A GB2443593 A GB 2443593A
Authority
GB
United Kingdom
Prior art keywords
filter unit
audio signals
channel audio
channel
output
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.)
Withdrawn
Application number
GB0804429A
Other versions
GB0804429D0 (en
Inventor
Sun-Min Kim
Sang-Il Park
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.)
Samsung Electronics Co Ltd
Original Assignee
Samsung Electronics Co Ltd
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
Priority claimed from KR1020050122433A external-priority patent/KR100739776B1/en
Application filed by Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Publication of GB0804429D0 publication Critical patent/GB0804429D0/en
Publication of GB2443593A publication Critical patent/GB2443593A/en
Withdrawn legal-status Critical Current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
    • H04S3/02—Systems employing more than two channels, e.g. quadraphonic of the matrix type, i.e. in which input signals are combined algebraically, e.g. after having been phase shifted with respect to each other
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S1/00—Two-channel systems
    • 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]
    • 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
    • H04S2420/07—Synergistic effects of band splitting and sub-band processing
    • 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 
    • 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
    • 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
    • H04S7/307—Frequency adjustment, e.g. tone control

Abstract

A stereo sound generation apparatus and method of reproducing multi-channel sound input signals through two-channel speakers. The stereo sound generation apparatus includes: a preprocessing filter unit to reduce correlation between two-channel audio signals from among multi-channel audio signals and to generate a presence perception, a virtual speaker filter unit to convert the two-channel audio signals output from the preprocessing filter unit into a virtual sound source at a predetermined position, a signal correction filter unit to correct a signal characteristic between remaining multi-channel audio signals excluding the two-channel audio signals, and the two-channel audio signals output from the virtual speaker filter unit, and an addition unit to add signals to be output to a first channel from among the multi-channel audio signals output from the virtual speaker filter unit and the signal correction filter unit, and to add signals to be output to a second channel from among the multi-channel audio signals output from the virtual speaker filter unit and the signal correction filter unit.
GB0804429A 2005-09-22 2006-09-22 Apparatus and method of reproduction virtual sound of two channels Withdrawn GB2443593A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US71919105P 2005-09-22 2005-09-22
KR1020050122433A KR100739776B1 (en) 2005-09-22 2005-12-13 Method and apparatus for reproducing a virtual sound of two channel
PCT/KR2006/003772 WO2007035055A1 (en) 2005-09-22 2006-09-22 Apparatus and method of reproduction virtual sound of two channels

Publications (2)

Publication Number Publication Date
GB0804429D0 GB0804429D0 (en) 2008-04-16
GB2443593A true GB2443593A (en) 2008-05-07

Family

ID=37889062

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0804429A Withdrawn GB2443593A (en) 2005-09-22 2006-09-22 Apparatus and method of reproduction virtual sound of two channels

Country Status (4)

Country Link
DE (1) DE112006002548T5 (en)
GB (1) GB2443593A (en)
NL (1) NL1032538C2 (en)
WO (1) WO2007035055A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8189812B2 (en) 2007-03-01 2012-05-29 Microsoft Corporation Bass boost filtering techniques
EP2830326A1 (en) * 2013-07-22 2015-01-28 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio prcessor for object-dependent processing
MY193418A (en) * 2015-02-18 2022-10-12 Huawei Tech Co Ltd An audio signal processing apparatus and method for filtering an audio signal
US10841728B1 (en) * 2019-10-10 2020-11-17 Boomcloud 360, Inc. Multi-channel crosstalk processing
CN113055789B (en) * 2021-02-09 2023-03-24 安克创新科技股份有限公司 Single sound channel sound box, method and system for increasing surround effect in single sound channel sound box
JP2023139706A (en) * 2022-03-22 2023-10-04 ヤマハ株式会社 Acoustic system and electronic musical instrument

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0541900A (en) * 1991-08-07 1993-02-19 Yamaha Corp Crosstalk cancel circuit and sound image localization equipment
JPH05168096A (en) * 1991-12-12 1993-07-02 Matsushita Electric Ind Co Ltd Stereo reproduction device
US5742689A (en) * 1996-01-04 1998-04-21 Virtual Listening Systems, Inc. Method and device for processing a multichannel signal for use with a headphone
US6614910B1 (en) * 1996-11-01 2003-09-02 Central Research Laboratories Limited Stereo sound expander
KR100560789B1 (en) * 2003-11-25 2006-03-13 삼성에스디아이 주식회사 full color OLED and fabrication method of the same

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6668061B1 (en) * 1998-11-18 2003-12-23 Jonathan S. Abel Crosstalk canceler
EP1072089B1 (en) 1998-03-25 2011-03-09 Dolby Laboratories Licensing Corp. Audio signal processing method and apparatus
GB2343347B (en) * 1998-06-20 2002-12-31 Central Research Lab Ltd A method of synthesising an audio signal
US7242782B1 (en) * 1998-07-31 2007-07-10 Onkyo Kk Audio signal processing circuit
US6175631B1 (en) * 1999-07-09 2001-01-16 Stephen A. Davis Method and apparatus for decorrelating audio signals
KR100344975B1 (en) * 1999-11-23 2002-07-20 한국표준과학연구원 Method for implementing transaural filter for sound localization
KR20050060789A (en) * 2003-12-17 2005-06-22 삼성전자주식회사 Apparatus and method for controlling virtual sound
KR100644617B1 (en) * 2004-06-16 2006-11-10 삼성전자주식회사 Apparatus and method for reproducing 7.1 channel audio
EP1815716A4 (en) * 2004-11-26 2011-08-17 Samsung Electronics Co Ltd Apparatus and method of processing multi-channel audio input signals to produce at least two channel output signals therefrom, and computer readable medium containing executable code to perform the method

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0541900A (en) * 1991-08-07 1993-02-19 Yamaha Corp Crosstalk cancel circuit and sound image localization equipment
JPH05168096A (en) * 1991-12-12 1993-07-02 Matsushita Electric Ind Co Ltd Stereo reproduction device
US5742689A (en) * 1996-01-04 1998-04-21 Virtual Listening Systems, Inc. Method and device for processing a multichannel signal for use with a headphone
US6614910B1 (en) * 1996-11-01 2003-09-02 Central Research Laboratories Limited Stereo sound expander
KR100560789B1 (en) * 2003-11-25 2006-03-13 삼성에스디아이 주식회사 full color OLED and fabrication method of the same

Also Published As

Publication number Publication date
NL1032538A1 (en) 2007-03-23
GB0804429D0 (en) 2008-04-16
DE112006002548T5 (en) 2008-07-10
WO2007035055A1 (en) 2007-03-29
NL1032538C2 (en) 2008-10-02

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)