Patent · US Active

Dry sound and ambient sound separation

US11238882B2 · kind B2 · utility

0Cited by

6References

21Claims

0Family size

Assignee

HARMAN BECKER AUTOMOTIVE SYSTEMS GMBH · DE

Inventors

Stefan Finauer · Erlangen, DE
Friedrich VON TÜRCKHEIM · Hamburg, DE
Tobias Muench · Neuenbürg, DE
Christopher Lee · New Castle, US

Key dates

Filing date	May 17, 2019
Grant date	Feb 1, 2022
Priority date	—
Expiry date	Oct 18, 2039

Classification

Technology area (CPC H)Electricity
CPC primaryH04S3/008
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A method for separating an audio input signal into a dry signal component and an ambient signal component is provided. The method includes generating a transferred input signal including transferring the audio input signal into frequency space and applying a smoothing filter to the transferred input signal to generate an estimated ambient signal component. The method includes determining the dry signal component based on the estimated ambient signal component and determining the ambient signal component based on the determined dry signal component and the audio input signal.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.