Apparatus and method for merging geometry-based spatial audio coding streams

US9484038B2 · kind B2 · utility

Assignee

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

Inventors

• Giovanni Del Galdo · Martinroda, DE
• Oliver Thiergart · Forchheim, DE
• Juergen Herre · Erlangen, DE
• Fabian Kuech · Erlangen, DE
• Emanuel Habets · Spardorf, DE
• Alexandra Craciun · Erlangen, DE
• Achim Kuntz · Hemhofen, DE

Key dates

• Filing date: Apr 12, 2012
• Grant date: Nov 1, 2016
• Expiry date: Aug 23, 2034

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04S2420/11
• WIPO field: Audio-visual technology
• WIPO sector: Electrical engineering

Abstract

An apparatus for generating a merged audio data stream is provided. The apparatus includes a demultiplexer for obtaining a plurality of single-layer audio data streams, wherein each input audio data stream includes one or more layers, wherein the demultiplexer is adapted to demultiplex each one of one or more input audio data streams having one or more layers into two or more demultiplexed audio data streams having exactly one layer. Furthermore, the apparatus includes a merging module for generating the merged audio data stream based on the plurality of single-layer audio data streams. Each layer of the input data audio streams, of the demultiplexed audio data streams, of the single-layer data streams and of the merged audio data stream includes a pressure value of a pressure signal, a position value and a diffuseness value as audio data.