The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 09, 2023
Filed:
Oct. 29, 2019
Applicant:
Agora Lab, Inc., Santa Clara, CA (US);
Inventor:
Xiaohan Zhao, Shanghai, CN;
Assignee:
Agora Lab, Inc., Santa Clara, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
G10L 19/00 (2013.01); G10L 19/16 (2013.01); H04L 47/32 (2022.01); G10L 19/02 (2013.01); G10L 19/028 (2013.01); G10L 19/005 (2013.01); G10L 25/21 (2013.01);
U.S. Cl.
CPC ...
G10L 19/167 (2013.01); G10L 19/005 (2013.01); G10L 19/0204 (2013.01); G10L 19/028 (2013.01); G10L 25/21 (2013.01); H04L 47/32 (2013.01);
Abstract
A method for recovering a current frame of an audio stream includes detecting that a current packet is lost, the current packet including an audio signal; splitting one or more frames into respective high-band signals and respective low-band signals, the one or more frames precede the current frame in the audio stream; inferring a current low-band signal of the current frame using, as inputs to a machine-learning model, the respective low-band signals; combining the inferred current low-band signal with the respective high-band signals to obtain the current frame; and adding the current frame to a playout buffer.