Invention Grant
- Patent Title: Multi-channel acoustic echo cancellation
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Application No.: US18145501Application Date: 2022-12-22
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Publication No.: US11817076B2Publication Date: 2023-11-14
- Inventor: Saeed Bagheri Sereshki , Romi Kadri
- Applicant: Sonos, Inc.
- Applicant Address: US CA Santa Barbara
- Assignee: Sonos, Inc.
- Current Assignee: Sonos, Inc.
- Current Assignee Address: US CA Santa Barbara
- Main IPC: G10K11/178
- IPC: G10K11/178 ; H04B17/336 ; H04R27/00 ; G06F3/16 ; H04M9/08 ; G10L21/0208 ; H04L65/75

Abstract:
A playback device is configured to: produce a first channel audio output of a first channel of audio content; produce a second channel audio output of a second channel of the audio content; receive captured audio content comprising (i) a first portion corresponding to the first channel audio output, (ii) a second portion corresponding to the second channel audio output, and (iii) a third portion corresponding to a voice command, wherein the captured audio content has a first signal-to-noise ratio; determine a set of signal components from at least one of the first channel or the second channel of the audio content; perform acoustic echo cancellation on a subset of signal components; determine an acoustic echo cancellation output; and apply the acoustic echo cancellation output to the captured audio content and thereby increase the first signal-to-noise ratio to a second signal-to-noise ratio that is greater than the first signal-to-noise ratio.
Public/Granted literature
- US20230127040A1 MULTI-CHANNEL ACOUSTIC ECHO CANCELLATION Public/Granted day:2023-04-27
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