Apparatus and method for generating an enhanced signal using independent noise-filling

US11705145B2 · kind B2 · utility

Assignee

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

Inventors

• Sascha Disch · Bad Mergentheim, DE
• Ralf Geiger · Erlangen, DE
• Andreas Niedermeier · Munich, DE
• Matthias Neusinger · Meiningen, DE
• Konstantin Schmidt · Nuremberg, DE
• Stephan Wilde · Wendelstein, DE
• Benjamin Schubert · Nuremberg, DE
• Christian Neukam · Kalchreuth, DE

Key dates

• Filing date: Nov 13, 2020
• Grant date: Jul 18, 2023
• Expiry date: Dec 31, 2040

Classification

• Technology area (CPC G): Physics
• CPC primary: G10L15/20
• WIPO field: Computer technology
• WIPO sector: Electrical engineering

Abstract

An apparatus for generating an enhanced signal from an input signal, wherein the enhanced signal has spectral values for an enhancement spectral region, the spectral values for the enhancement spectral regions not being contained in the input signal, includes a mapper for mapping a source spectral region of the input signal to a target region in the enhancement spectral region, the source spectral region including a noise-filling region; and a noise filler configured for generating first noise values for the noise-filling region in the source spectral region of the input signal and for generating second noise values for a noise region in the target region, wherein the second noise values are decorrelated from the first noise values or for generating second noise values for a noise region in the target region, wherein the second noise values are decorrelated from first noise values in the source region.