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:
Oct. 29, 2019
Filed:
Sep. 25, 2017
Applicant:
Amazon Technologies, Inc., Seattle, WA (US);
Inventors:
Assignee:
AMAZON TECHNOLOGIES, INC., Seattle, WA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03G 3/00 (2006.01); H03G 3/30 (2006.01); G06F 3/16 (2006.01); G10L 25/21 (2013.01); H03G 5/16 (2006.01);
U.S. Cl.
CPC ...
H03G 3/3005 (2013.01); G06F 3/165 (2013.01); G10L 25/21 (2013.01); H03G 5/165 (2013.01);
Abstract
Devices and techniques are generally described for automatic volume leveling of an audio signal. An audio signal may be received and a first portion of the audio signal may be stored in a buffer. A root mean square (RMS) estimate of a level of the first portion of the audio signal may be determined based at least in part on a second portion of the audio signal previous to the first portion. A modified audio signal may be generated by multiplying the first portion of the audio signal in the buffer by a variable gain. The variable gain may be based at least in part on the RMS estimate. The modified audio signal may be sent to a loudspeaker.