The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 09, 2021
Filed:
May. 31, 2019
Audio decoder, method and computer program using a zero-input-response to obtain a smooth transition
Fraunhofer-gesellschaft Zur Foerderung Der Angewandten Forschung E.v., Munich, DE;
Emmanuel Ravelli, Erlangen, DE;
Guillaume Fuchs, Bubenreuth, DE;
Sascha Disch, Fuerth, DE;
Markus Multrus, Nuremberg, DE;
Grzegorz Pietrzyk, Nuremberg, DE;
Benjamin Schubert, Nuremberg, DE;
Abstract
An audio decoder for providing a decoded audio information on the basis of an encoded audio information is disclosed. The audio decoder includes a linear-prediction-domain decoder configured to provide a first decoded audio information on the basis of an audio frame encoded in a linear prediction domain, a frequency domain decoder configured to provide a second decoded audio information on the basis of an audio frame encoded in a frequency domain, and a transition processor. The transition processor is configured to obtain a zero-input-response of a linear predictive filtering, wherein an initial state of the linear predictive filtering is defined depending on the first decoded audio information and the second decoded audio information, and modify the second decoded audio information depending on the zero-input-response, to obtain a smooth transition between the first and the modified second decoded audio information.