Apparatus and methods for processing an audio signal

US12175988B2 · kind B2 · utility

Assignee

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

Inventors

• Patrick Gampp · Erlangen, DE
• Christian Uhle · Nuremberg, DE
• Sascha Disch · Bad Mergentheim, DE
• Antonios Karampourniotis · Nuremberg, DE
• Julia Havenstein · Nuremberg, DE
• Oliver Hellmuth · Erlangen, DE
• Juergen Herre · Erlangen, DE
• Peter Prokein · Erlangen, DE

Key dates

• Filing date: Sep 24, 2019
• Grant date: Dec 24, 2024
• Expiry date: Sep 24, 2039

Classification

• Technology area (CPC H): Electricity
• CPC primary: H03G3/20
• WIPO field: Computer technology
• WIPO sector: Electrical engineering

Abstract

An apparatus for processing an audio signal includes a separator for separating a first portion of a spectrum of the audio signal from a second portion of the spectrum of the audio signal, the first portion having a first signal characteristic and the second portion having a second signal characteristic. The apparatus includes a first bandwidth extender for extending a bandwidth of the first portion using first parameters associated with the first signal characteristic, for obtaining a first extended portion and includes a second bandwidth extender for extending a bandwidth of the second portion using second parameters associated with the second signal characteristic, for obtaining a second extended portion. The apparatus includes a combiner configured for using the first extended portion and the second extended portion for obtaining an extended combined audio signal.