SG11201407255XA - Stereo widening over arbitrarily-configured loudspeakers - Google Patents

Stereo widening over arbitrarily-configured loudspeakers

Info

Publication number
SG11201407255XA
SG11201407255XA SG11201407255XA SG11201407255XA SG11201407255XA SG 11201407255X A SG11201407255X A SG 11201407255XA SG 11201407255X A SG11201407255X A SG 11201407255XA SG 11201407255X A SG11201407255X A SG 11201407255XA SG 11201407255X A SG11201407255X A SG 11201407255XA
Authority
SG
Singapore
Prior art keywords
signal processing
international
stereo
elevation
loudspeakers
Prior art date
Application number
SG11201407255XA
Inventor
Steven Verity
Jun Yang
Robert Ridder
Original Assignee
Creative Tech 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
Application filed by Creative Tech Ltd filed Critical Creative Tech Ltd
Publication of SG11201407255XA publication Critical patent/SG11201407255XA/en

Links

Classifications

    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S1/00—Masers, i.e. devices using stimulated emission of electromagnetic radiation in the microwave range
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/12—Circuits for transducers, loudspeakers or microphones for distributing signals to two or more loudspeakers
    • H04R3/14—Cross-over networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R5/00—Stereophonic arrangements
    • H04R5/02—Spatial or constructional arrangements of loudspeakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S1/00—Two-channel systems
    • 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
    • H04S7/302—Electronic adaptation of stereophonic sound system to listener position or orientation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R5/00—Stereophonic arrangements
    • H04R5/04—Circuit arrangements, e.g. for selective connection of amplifier inputs/outputs to loudspeakers, for loudspeaker detection, or for adaptation of settings to personal preferences or hearing impairments
    • 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 
    • H04S3/00—Systems employing more than two channels, e.g. quadraphonic

Abstract

(12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 5 December 2013 (05.12.2013) WIPOIPCT (10) International Publication Number WO 2013/181172 A1 (51) International Patent Classification: H04S3/00 (2006.01) (21) International Application Number: (22) International Filing Date: (25) Filing Language: (26) Publication Language: PCT/US2013/042953 29 May 2013 (29.05.2013) English English (30) Priority Data: 61/652,813 29 May 2012 (29.05.2012) (71) Applicant: CREATIVE TECHNOLOGY LTD [SG/SG]; 31 International Business Park #03-01, Creative Resource, 609921 Singapore (SG). (72) Inventors; and (71) Applicants (for US only): YANG, Jun [US/US]; 1144 Little John Way, San Jose, CA 95129 (US). RIDDER, Robert [NL/US]; 2339 Muriel Drive, Santa Cruz, CA 95062 (US). VERITY, Steven [US/US]; 623 Los Padres Blvd., Santa Clara, CA 95050 (US). (81) Designated States (unless otherwise indicated, for every kind of national protection available)'. AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. Ug (84) Designated States (unless otherwise indicated, for every kind of regional protection available)'. ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, SZ, TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG). Published: — with international search report (Art. 21(3)) (74) Agents: GEAN, Desmund et al.; Creative Labs, Inc., (Leg­ al Department), 1901 McCarthy Boulevard, Milpitas, CA 95035 (US). (54) Title: STEREO WIDENING OVER ARBITRARILY-CONFIGURED LOUDSPEAKERS J 00 = Left 101a f f » » 102 I L1 L1 103a 104 / L2 105a Left 101a Elevation Processing 103a Side Signal Processing L2 105a = Elevation Processing Side Signal Processing S * Elevation Processing \ * Side Signal Processing \ * i-H Right 101b R1 103b R2 105b 106 I Center Signal Processing L3 107a 108 I L4 109a 110 / L5 111a I I „ „ L3 107a Binaural Stereo Limiter L5 111a Signal Processing Stereo Limiter S * Signal Processing s * S * R3 107b R4 109b R5 111b CJ l> 00 i-H en i-H o CJ o & Figure 1 (57) Abstract: A system and method are disclosed for effective and simple stereo widening over arbitrarily-configured speakers and its real-time implementation. According to one embodiment, the system includes five processing units: (1) elevation processing unit; (2) side signal or difference signal processing unit; (3) center signal processing unit; (4) binaural signal processing unit; and (5) ste­ reo limiter (to prevent the clipping) unit. Any of the five processing units may be included or omitted depending on the application. In general, embodiments of the present invention provide effective and simple stereo widening schemes with good audio quality res - ults, but without having substantial requirements on the speakers' positional configuration. For example, the proposed schemes can apply to both symmetric and non-symmetric stereo loudspeakers.
SG11201407255XA 2012-05-29 2013-05-29 Stereo widening over arbitrarily-configured loudspeakers SG11201407255XA (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201261652813P 2012-05-29 2012-05-29
PCT/US2013/042953 WO2013181172A1 (en) 2012-05-29 2013-05-29 Stereo widening over arbitrarily-configured loudspeakers

Publications (1)

Publication Number Publication Date
SG11201407255XA true SG11201407255XA (en) 2014-12-30

Family

ID=49673859

Family Applications (1)

Application Number Title Priority Date Filing Date
SG11201407255XA SG11201407255XA (en) 2012-05-29 2013-05-29 Stereo widening over arbitrarily-configured loudspeakers

Country Status (5)

Country Link
US (1) US9398391B2 (en)
EP (1) EP2856775B1 (en)
CN (1) CN104335606B (en)
SG (1) SG11201407255XA (en)
WO (1) WO2013181172A1 (en)

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US10075795B2 (en) * 2013-04-19 2018-09-11 Electronics And Telecommunications Research Institute Apparatus and method for processing multi-channel audio signal
US20140362996A1 (en) * 2013-05-08 2014-12-11 Max Sound Corporation Stereo soundfield expander
US20150036826A1 (en) * 2013-05-08 2015-02-05 Max Sound Corporation Stereo expander method
US20150036828A1 (en) * 2013-05-08 2015-02-05 Max Sound Corporation Internet audio software method
US9319819B2 (en) 2013-07-25 2016-04-19 Etri Binaural rendering method and apparatus for decoding multi channel audio
AU2014401812B2 (en) * 2014-07-22 2018-03-01 Huawei Technologies Co., Ltd. An apparatus and a method for manipulating an input audio signal
CN107005778B (en) * 2014-12-04 2020-11-27 高迪音频实验室公司 Audio signal processing apparatus and method for binaural rendering
EP3048809B1 (en) * 2015-01-21 2019-04-17 Nxp B.V. System and method for stereo widening
JP6885560B2 (en) 2015-10-29 2021-06-16 国立大学法人 筑波大学 Morhinan derivatives and their pharmaceutical uses
US10225657B2 (en) 2016-01-18 2019-03-05 Boomcloud 360, Inc. Subband spatial and crosstalk cancellation for audio reproduction
CA3011694C (en) * 2016-01-19 2019-04-02 Boomcloud 360, Inc. Audio enhancement for head-mounted speakers
EP3852394A1 (en) 2016-06-21 2021-07-21 Dolby Laboratories Licensing Corporation Headtracking for pre-rendered binaural audio
JP6866679B2 (en) * 2017-02-20 2021-04-28 株式会社Ｊｖｃケンウッド Out-of-head localization processing device, out-of-head localization processing method, and out-of-head localization processing program
US10623883B2 (en) * 2017-04-26 2020-04-14 Hewlett-Packard Development Company, L.P. Matrix decomposition of audio signal processing filters for spatial rendering
TWI634549B (en) 2017-08-24 2018-09-01 瑞昱半導體股份有限公司 Audio enhancement device and method
EP3934274B1 (en) 2017-11-21 2023-11-01 Dolby Laboratories Licensing Corporation Methods and apparatus for asymmetric speaker processing
CN108040317B (en) * 2017-12-22 2019-09-27 南京大学 A kind of hybrid sense of hearing sound field broadening method
US10764704B2 (en) * 2018-03-22 2020-09-01 Boomcloud 360, Inc. Multi-channel subband spatial processing for loudspeakers
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Also Published As

Publication number Publication date
EP2856775A4 (en) 2015-12-09
CN104335606B (en) 2017-01-18
US20150125010A1 (en) 2015-05-07
EP2856775A1 (en) 2015-04-08
US9398391B2 (en) 2016-07-19
CN104335606A (en) 2015-02-04
EP2856775B1 (en) 2018-04-25
WO2013181172A1 (en) 2013-12-05

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