Apparatus and method for processing an audio signal using a harmonic post-filter

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United States of America

PATENT NO 12190897
APP PUB NO 20230282223A1
SERIAL NO

18197724

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Abstract

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An apparatus for processing an audio signal having associated therewith a pitch lag information and a gain information, includes a domain converter for converting a first domain representation of the audio signal into a second domain representation of the audio signal; and a harmonic post-filter for filtering the second domain representation of the audio signal, wherein the post-filter is based on a transfer function including a numerator and a denominator, wherein the numerator includes a gain value indicated by the gain information, and wherein the denominator includes an integer part of a pitch lag indicated by the pitch lag information and a multi-tap filter depending on a fractional part of the pitch lag.

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Patent Owner(s)

  • FRAUNHOFER - GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Dietz, Martin Nuremberg, DE 105 1158
Disch, Sascha Fuerth, DE 255 3633
Helmrich, Christian Berlin, DE 154 944
Jander, Manuel Hemhofen, DE 58 586
Markovic, Goran Nuremberg, DE 80 383
Neusinger, Matthias Rohr, DE 65 1386
Ravelli, Emmanuel Erlangen, DE 93 400

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