Patent · US Active

Device and method for adaptation of virtual 3D audio to a real room

US11668600B2 · kind B2 · utility

0Cited by

1References

16Claims

0Family size

Assignee

Huawei Technologies Co., Ltd. · CN

Inventors

Liyun Pang · Munich, DE
Fons Adriaensen · Munich, DE
Song Li · Nanhu, CN
Roman Schlieper · Hannover, DE

Key dates

Filing date	Mar 18, 2021
Grant date	Jun 6, 2023
Priority date	—
Expiry date	Jun 12, 2041

Classification

Technology area (CPC H)Electricity
CPC primaryH04S2420/01
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

The invention relates to the technical fields of binaural audio rendering and, to this end, estimation of room acoustic parameters like reverberation time. In particular, the invention provides a device and method for estimating such acoustic parameters. The device is configured to record an acoustic signal, particularly a speech signal, to estimate a frequency-dependent reverberation time in a lower frequency range based on the recorded acoustic signal, and to extend the frequency-dependent reverberation time to a higher frequency range based on a predetermined model to obtain an extended frequency-dependent reverberation time. Virtual 3D audio can thus be adapted to a real room.

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