Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
BACKGROUND AUDIO SIGNAL FILTERING METHOD AND APPARATUS, AND STORAGE MEDIUM
Document Type and Number:
WIPO Patent Application WO/2020/228528
Kind Code:
A1
Abstract:
Disclosed are a background audio signal filtering method and apparatus, and a storage medium, belonging to the technical field of audio processing. The method comprises: acquiring a first audio signal collected during the process of playing a background audio signal, wherein the background audio signal is an audio signal obtained after watermark information is added to an original audio signal; performing a separation operation on the first audio signal to obtain the watermark information and a second audio signal excluding the watermark information; querying a preset correlation according to the watermark information to obtain the original audio signal corresponding to the watermark information; and filtering the original audio signal out from the second audio signal to obtain a target audio signal. The embodiments of the present application provide a solution of filtering a background audio signal. There is no need to acquire an additional individual background audio signal, and the background audio signal can be filtered out from the collected audio signal, such that the influence of the background audio signal is avoided, the universality is strong, and the application range is expanded.

Inventors:
LI DONGMING (CN)
Application Number:
PCT/CN2020/087376
Publication Date:
November 19, 2020
Filing Date:
April 28, 2020
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
TENCENT TECH SHENZHEN CO LTD (CN)
International Classes:
G10L19/018; G10L21/0208; G10L21/0272
Foreign References:
CN110047497A2019-07-23
CN106716527A2017-05-24
EP2779162A22014-09-17
CN106601261A2017-04-26
Attorney, Agent or Firm:
SHENPAT INTELLECTUAL PROPERTY AGENCY (CN)
Download PDF: