APPARATUS AND METHOD FOR GENERATING AUDIO SUBBAND VALUES AND APPARATUS AND METHOD FOR GENERATING TIME-DOMAIN AUDIO SAMPLES

Malaysia Patent

PATENT NO 148715
SERIAL NO

PI20083406

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Abstract

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AN EMBODIMENT OF AN APPARATUS (100) FOR GENERATING AUDIO SUBBAND VALUES IN AUDIO SUBBAND CHANNELS COMPRISES AN ANALYSIS WINDOWER (110) FOR WINDOWING A FRAME (120) OF TIME-DOMAIN AUDIO INPUT SAMPLES BEING IN A TIME SEQUENCE EXTENDING FROM AN EARLY SAMPLE TO A LATER SAMPLE USING AN ANALYSIS WINDOW FUNCTION (190) COMPRISING A SEQUENCE OF WINDOW COEFFICIENTS TO OBTAIN WINDOWED SAMPLES. THE ANALYSIS WINDOW FUNCTION COMPRISES A FIRST NUMBER OF WINDOW COEFFICIENTS DERIVED FROM A LARGER WINDOW FUNCTION COMPRISING A SEQUENCE OF A LARGER SECOND NUMBER OF WINDOW COEFFICIENTS, WHEREIN THE WINDOW COEFFICIENTS OF THE WINDOW FUNCTION ARE DERIVED BY AN INTERPOLATION OF WINDOW COEFFICIENTS OF THE LARGER WINDOW FUNCTION. THE APPARATUS (100) FURTHER COMPRISES A CALCULATOR (170) FOR CALCULATING THE AUDIO SUBBAND VALUES USING THE WINDOWED SAMPLES.

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Patent Owner(s)

Patent OwnerAddress
FRAUNHOFER GES FORSCHUNGDEMUNICH GERMANY

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Inventor(s)

Inventor Name Address
MARKUS SCHNELL DE
BERNHARD GRILL AM SCHWABENWEIHER 29 91207 LAUF GERMANY
MARKUS MULTRUS ETZLAUBWEG 7 90409 NÜRNBERG -ALEMANHA DE
RALF GEIGER DE
MANFRED LUTZKY HEINRICH-VON-BRENTANO-STRASSE 9 90427 NÜRNBERG DE
GERALD SCHULLER LEOPOLDSTRASSE 13 99089 ERFURT DE
BERND EDLER HEMELINGSTR 10 30419 HANNOVER - ALEMANHA DE
MARKUS LOHWASSER WESTPREUBENSTR 3B 91217 HERSBRUCK GERMANY
MICHAEL MELLAR DE
MARC GAYER HAAGSTRASSE 32 91054 ERLANGEN GERMANY
MARKUS SCHMIDT LOCHGAU DE

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