Concept for audio encoding and decoding for audio channels and audio objects

US11227616B2 · kind B2 · utility

Assignee

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

Inventors

• Alexander Adami · Gundelsheim, DE
• Christian Borss · Erlangen, DE
• Sascha Dick · Nuremberg, DE
• Christian Ertel · Eckental, DE
• Simone NEUKAM · Kalchreuth, DE
• Juergen Herre · Erlangen, DE
• Johannes Hilpert · Nuremberg, DE
• Andreas Hoelzer · Erlangen, DE
• Michael Kratschmer · Erlangen, DE
• Fabian Kuech · Erlangen, DE
• Achim Kuntz · Hemhofen, DE
• Adrian Murtaza · Craiova, RO
• Jan Plogsties · Ergolding, DE
• Andreas Silzle · Buckenhof, DE
• Hanne STENZEL · Furth, DE

Key dates

• Filing date: Feb 15, 2019
• Grant date: Jan 18, 2022
• Expiry date: Feb 15, 2039

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04S2400/11
• WIPO field: Computer technology
• WIPO sector: Electrical engineering

Abstract

Audio encoder for encoding audio input data to obtain audio output data includes an input interface for receiving a plurality of audio channels, a plurality of audio objects and metadata related to one or more of the plurality of audio objects; a mixer for mixing the plurality of objects and the plurality of channels to obtain a plurality of pre-mixed channels, each pre-mixed channel including audio data of a channel and audio data of at least one object; a core encoder for core encoding core encoder input data; and a metadata compressor for compressing the metadata related to the one or more of the plurality of audio objects, wherein the audio encoder is configured to operate in at least one mode of the group of two modes.