Apparatus and method for encoding or decoding directional audio coding parameters using different time/frequency resolutions

US11783843B2 · kind B2 · utility

Assignee

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

Inventors

• Guillaume Fuchs · Erlangen, DE
• Jürgen Herre · Buckenhof, DE
• Fabian KÜCH · Erlangen, DE
• Stefan DÖHLA · Erlangen, DE
• Markus Multrus · Nuremberg, DE
• Oliver Thiergart · Forchheim, DE
• Oliver WÜBBOLT · Hannover, DE
• Florin Ghido · Nuremberg, DE
• Stefan Bayer · Nuremberg, DE
• Wolfgang Jaegers · Erlangen, DE

Key dates

• Filing date: May 11, 2020
• Grant date: Oct 10, 2023
• Expiry date: Mar 20, 2041

Classification

• Technology area (CPC H): Electricity
• CPC primary: H03M7/6011
• WIPO field: Computer technology
• WIPO sector: Electrical engineering

Abstract

An apparatus for encoding directional audio coding parameters including diffuseness parameters and direction parameters includes: a parameter calculator for calculating the diffuseness parameters with a first time or frequency resolution and for calculating the direction parameters with a second time or frequency resolution; and a quantizer and encoder processor for generating a quantized and encoded representation of the diffuseness parameters and the direction parameters.