WO2002091798A3 - Data-driven software architecture for digital sound processing and equalization - Google Patents

Data-driven software architecture for digital sound processing and equalization Download PDF

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Publication number
WO2002091798A3
WO2002091798A3 PCT/US2002/012461 US0212461W WO02091798A3 WO 2002091798 A3 WO2002091798 A3 WO 2002091798A3 US 0212461 W US0212461 W US 0212461W WO 02091798 A3 WO02091798 A3 WO 02091798A3
Authority
WO
WIPO (PCT)
Prior art keywords
sound processing
channel inputs
signal processor
equalization
data
Prior art date
Application number
PCT/US2002/012461
Other languages
French (fr)
Other versions
WO2002091798A2 (en
Inventor
Bradley F Eid
Original Assignee
Harman Int Ind
Bradley F Eid
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 Harman Int Ind, Bradley F Eid filed Critical Harman Int Ind
Priority to CA002446822A priority Critical patent/CA2446822C/en
Priority to JP2002588724A priority patent/JP2005513825A/en
Priority to DE60227071T priority patent/DE60227071D1/en
Priority to EP02723920A priority patent/EP1393592B1/en
Publication of WO2002091798A2 publication Critical patent/WO2002091798A2/en
Publication of WO2002091798A3 publication Critical patent/WO2002091798A3/en

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers without distortion of the input signal
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/32—Automatic control in amplifiers having semiconductor devices the control being dependent upon ambient noise level or sound level
    • 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
    • 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 
    • 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 
    • H04S5/005—Pseudo-stereo systems, e.g. in which additional channel signals are derived from monophonic signals by means of phase shifting, time delay or reverberation  of the pseudo five- or more-channel type, e.g. virtual surround
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S7/00—Indicating arrangements; Control arrangements, e.g. balance control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2499/00—Aspects covered by H04R or H04S not otherwise provided for in their subgroups
    • H04R2499/10—General applications
    • H04R2499/13—Acoustic transducers and sound field adaptation in vehicles
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S7/00—Indicating arrangements; Control arrangements, e.g. balance control
    • H04S7/40—Visual indication of stereophonic sound image

Abstract

A digital sound processing design system for a vehicle audio system includes a computer and a design tool that is run by the computer. The design tool allows a user to define sound processing criteria that is stored in a template file. An audio signal processor is connected to the first and second real channel inputs of an audio source. Memory that is coupled to the audio signal processor stores the template file. The sound processing engine that is coupled to the audio signal processor and the memory reads the template file at run-time to obtain the sound processing criteria. The sound processing engine applies the sound processing criteria to the first and second real channel inputs. The design tool allows a user to create virtual channel inputs and outputs that are based, in part, on the first and second real channel inputs.
PCT/US2002/012461 2001-05-07 2002-04-19 Data-driven software architecture for digital sound processing and equalization WO2002091798A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CA002446822A CA2446822C (en) 2001-05-07 2002-04-19 Data-driven software architecture for digital sound processing and equalization
JP2002588724A JP2005513825A (en) 2001-05-07 2002-04-19 Data-driven software architecture for digital sound processing and equalization
DE60227071T DE60227071D1 (en) 2001-05-07 2002-04-19 DATA-CONTROLLED SOFTWARE ARCHITECTURE FOR SOUND PROCESSING AND DECORATION
EP02723920A EP1393592B1 (en) 2001-05-07 2002-04-19 Data-driven software architecture for digital sound processing and equalization

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/850,500 US6804565B2 (en) 2001-05-07 2001-05-07 Data-driven software architecture for digital sound processing and equalization
US09/850,500 2001-05-07

Publications (2)

Publication Number Publication Date
WO2002091798A2 WO2002091798A2 (en) 2002-11-14
WO2002091798A3 true WO2002091798A3 (en) 2003-11-27

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2002/012461 WO2002091798A2 (en) 2001-05-07 2002-04-19 Data-driven software architecture for digital sound processing and equalization

Country Status (6)

Country Link
US (5) US6804565B2 (en)
EP (1) EP1393592B1 (en)
JP (2) JP2005513825A (en)
CA (1) CA2446822C (en)
DE (1) DE60227071D1 (en)
WO (1) WO2002091798A2 (en)

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