Apparatus and method for generating audio output signals using object based metadata

US8315396B2 · kind B2 · utility

Assignee

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

Inventors

• Stephan Schreiner · Frechetsfeld, DE
• Wolfgang Fiesel · Schwanstetten, DE
• Matthias Neusinger · Meiningen, DE
• Oliver Hellmuth · Erlangen, DE
• Ralph Sperschneider · Erlangen, DE

Key dates

• Filing date: Oct 9, 2008
• Grant date: Nov 20, 2012
• Expiry date: Sep 21, 2031

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04S3/008
• WIPO field: Audio-visual technology
• WIPO sector: Electrical engineering

Abstract

An apparatus for generating at least one audio output signal representing a superposition of at least two different audio objects comprises a processor for processing an audio input signal to provide an object representation of the audio input signal, where this object representation can be generated by a parametrically guided approximation of original objects using an object downmix signal. An object manipulator individually manipulates objects using audio object based metadata referring to the individual audio objects to obtain manipulated audio objects. The manipulated audio objects are mixed using an object mixer for finally obtaining an audio output signal having one or several channel signals depending on a specific rendering setup.