Estimating noise in an audio signal in the LOG2-domain

US10762912B2 · kind B2 · utility

Assignee

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

Inventors

• Benjamin Schubert · Nuremberg, DE
• Manuel Jander · Hemhofen, DE
• Anthony Lombard · Erlangen, DE
• Martin Dietz · Nuremberg, DE
• Markus Multrus · Nuremberg, DE

Key dates

• Filing date: Feb 27, 2019
• Grant date: Sep 1, 2020
• Expiry date: Feb 27, 2039

Classification

• Technology area (CPC G): Physics
• CPC primary: G10L21/0216
• WIPO field: Computer technology
• WIPO sector: Electrical engineering

Abstract

A method is described that estimates noise in an audio signal. An energy value for the audio signal is estimated and converted into the logarithmic domain. A noise level for the audio signal is estimated based on the converted energy value.