Audio decoder, audio encoder, method for providing a decoded audio signal, method for providing an encoded audio signal, audio stream, audio stream provider and computer program using a stream identifier

US11217260B2 · kind B2 · utility

Assignee

• Fraunhofer-Gesellschaft zur förderung der angewandten Forschung e.V. · DE

Inventors

• Max Neuendorf · Nuremberg, DE
• Matthias FELIX · Erlangen, DE
• Matthias Hildenbrand · Erlangen, DE
• Lukas Schuster · Litzendorf, DE
• Ingo Hofmann · Nuremberg, DE
• Bernd Herrmann · Ehningen, DE
• Nikolaus Rettelbach · Nuremberg, DE

Key dates

• Filing date: Jul 9, 2019
• Grant date: Jan 4, 2022
• Expiry date: Nov 28, 2039

Classification

• Technology area (CPC G): Physics
• CPC primary: G10L19/173
• WIPO field: Computer technology
• WIPO sector: Electrical engineering

Abstract

An audio decoder for providing a decoded audio signal representation on the basis of an encoded audio signal representation is configured to adjust decoding parameters in dependence on a configuration information, to decode one or more audio frames using a current configuration information, to compare a configuration information in a configuration structure associated with one or more frames to be decoded by the current configuration information, and to make a transition to perform decoding using the configuration information in the configuration structure associated with the one or more frames to be decoded as a new configuration information if the configuration information in the configuration structure associated with the one or more frames to be decoded, or a relevant portion thereof, is different from the current configuration information, and to consider a stream identifier information included in the configuration structure when comparing the configuration information.