Apparatus and method for generating output signals based on an audio source signal, sound reproduction system and loudspeaker signal

US9961473B2 · kind B2 · utility

Assignee

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

Inventors

• Sebastian Schlecht · Leipzig, DE
• Andreas Silzle · Buckenhof, DE
• Emanuel Habets · Spardorf, DE
• Christian Borss · Erlangen, DE
• Bernhard Neugebauer · Erlangen, DE
• Hanne STENZEL · Furth, DE

Key dates

• Filing date: May 3, 2017
• Grant date: May 1, 2018
• Expiry date: May 3, 2037

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04S2420/03
• WIPO field: Audio-visual technology
• WIPO sector: Electrical engineering

Abstract

An apparatus for generating a first multitude of output signals based on at least one audio source signal having a delay network and a feedback processor. The delay network includes a second multitude of delay paths, each delay path having a delay line and an attenuation filter. Each delay line is configured for delaying delay line input signals and for combining the at least one audio source signal and a reverberated audio signal to obtain a combined signal, wherein the attenuation filter of a delay path is configured for filtering the combined signal from the delay line of the delay path to obtain an output signal. The first multitude of output signals includes the output signal. The feedback processor is configured for reverberating the first multitude of output signals to obtain a third multitude of the reverberated audio signals including the reverberated audio signal.