Audio encoding/decoding scheme having a switchable bypass

US8959017B2 · kind B2 · utility

Assignee

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

Inventors

• Bernhard Grill · Lautenbächle, DE
• Stefan Bayer · Nuremberg, DE
• Guillaume Fuchs · Erlangen, DE
• Stefan Geyersberger · Erlangen, DE
• Ralf Geiger · Erlangen, DE
• Johannes Hilpert · Nuremberg, DE
• Ulrich Kraemer · Stuttgart, DE
• Jérémie Lecomte · Santa Clara, US
• Markus Multrus · Nuremberg, DE
• Max Neuendorf · Nuremberg, DE
• Harald Popp · Tuchenbach, DE
• Nikolaus Rettelbach · Nuremberg, DE
• Roch Lefebvre · Magog, CA
• Bruno Bessette · Sherbrooke, CA
• Jimmy Lapierre · Orford, CA
• Philippe Gournay · Sherbrooke, CA
• Redwan Salami · Delta, CA

Key dates

• Filing date: Nov 6, 2012
• Grant date: Feb 17, 2015
• Expiry date: Nov 6, 2032

Classification

• Technology area (CPC G): Physics
• CPC primary: G10L2019/0008
• WIPO field: Computer technology
• WIPO sector: Electrical engineering

Abstract

An apparatus for encoding includes a first domain converter, a switchable bypass, a second domain converter, a first processor and a second processor to obtain an encoded audio signal having different signal portions represented by coded data in different domains, which have been coded by different coding algorithms. Corresponding decoding stages in the decoder together with a bypass for bypassing a domain converter allow the generation of a decoded audio signal with high quality and low bit rate.