System and method for stereophonic acoustic echo cancellation

Patent metadata

Field	Value
Publication number	US-9094496-B2
Application number	US-89663910-A
Country	US
Kind code	B2
Filing date	Oct 1, 2010
Priority date	Jun 18, 2010
Publication date	Jul 28, 2015
Grant date	Jul 28, 2015

Abstract

Disclosed herein are systems, methods, and non-transitory computer-readable storage media for stereophonic acoustic echo cancellation. The method includes collecting, at a same time, a first audio sample of an audio source from a first omnidirectional microphone and a second audio sample of the audio source from a second omnidirectional microphone. The method includes delaying the second audio sample by a first amount of time to yield a delayed second audio sample and combining the delayed second audio sample with the first audio sample to produce a first channel, then delaying the first audio sample by a second amount of time to yield a delayed first audio sample and combining the delayed first audio sample with the second audio sample to produce a second channel. Then the method includes outputting the first channel and the second channel as a stereo audio signal of the audio source.

First claim

I claim:

1. A method comprising:
collecting, at a same time, a first audio sample of an audio source from a first omnidirectional microphone and a second audio sample of the audio source from a second omnidirectional microphone;
delaying the second audio sample by a first amount of time, to yield a delayed second audio sample;
combining the delayed second audio sample with the first audio sample to produce a left channel {tilde over (X)} 1 (ω), wherein {tilde over (X)} 1 (ω)=S…

Assignees

• Teutsch Heinz
• Avaya Inc

Inventors

• Teutsch Heinz

Classifications

• H04R3/002

  Electricity · mapped topic

• H04M9/082 Primary

  Electricity · mapped topic