Patent · US Active

Optimal mixing matrices and usage of decorrelators in spatial audio processing

US11282485B2 · kind B2 · utility

1Cited by

0References

26Claims

0Family size

Assignee

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

Inventors

Juha Vilkamo · Helsinki, FI
Tom Baeckstroem · Nuremberg, DE
Fabian Kuech · Erlangen, DE
Achim Kuntz · Hemhofen, DE

Key dates

Filing date	Aug 6, 2020
Grant date	Mar 22, 2022
Priority date	—
Expiry date	Aug 6, 2040

Classification

Technology area (CPC G)Physics
CPC primaryG10L19/008
WIPO fieldOther consumer goods
WIPO sectorOther fields

Abstract

An apparatus for generating an audio output signal having two or more audio output channels from an audio input signal having two or more audio input channels includes a provider and a signal processor. The provider is adapted to provide first covariance properties of the audio input signal. The signal processor is adapted to generate the audio output signal by applying a mixing rule on at least two of the two or more audio input channels. The signal processor is configured to determine the mixing rule based on the first covariance properties of the audio input signal and based on second covariance properties of the audio output signal, the second covariance properties being different from the first covariance properties.

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