Patent ID: 11882415
Assignee: AMAZON TECHNOLOGIES, INC.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A system comprising:
a first device comprising:
a first communication interface;
a first microphone;
a first memory storing first computer-executable instructions; and
a first hardware processor to execute the first computer-executable instructions to:
determine first audio data representative of speech input, wherein the speech input is associated with a user;
receive, from a second device, second audio data representative of the speech input;
determine a correspondence between a first portion of the first audio data and a second portion of the second audio data;
determine a first energy value indicative of acoustic energy represented by the first portion;
determine a second energy value indicative of acoustic energy represented by the second portion;
determine that the second energy value is greater than the first energy value;
determine, based on the correspondence, a time difference of arrival (TDOA) value that is indicative of a difference in time at which the speech input is detected at the first and the second devices;
determine, based on the TDOA value, that the user is closer to the second device than the first device;
determine a noise source based on one or more of:
the first audio data,
the second audio data,
the first energy value,
the second energy value, or
the TDOA value;

determine that the first device is closest to the noise source;
determine, based on the second audio data, third audio data; and
send, using the first communication interface, the third audio data to a third device.