Patent ID: 11875810
Assignee: AMAZON TECHNOLOGIES, INC.
Field: Computer technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 5:
6. A computer-implemented method, comprising:
generating, at a first layer of an echo canceler, a first output obtained at least in part by applying a first compensation for a first set of one or more properties of output of a first audio capture device of a first communication environment, wherein the first communication environment comprises a first audio rendering device configured to render audio obtained from a second communication environment, wherein the first set includes a property resulting from a difference in clock frequencies of the first audio rendering device and the first audio capture device, and wherein applying the first compensation comprises modifying one or more weights of a first neural network;
generating, at a second layer of the echo canceler, a second output obtained at least in part by applying a second compensation for a second set of one or more properties of the first output, wherein the second set includes a first echo resulting from capturing audio output of the first audio rendering device at the first audio capture device, and wherein applying the second compensation comprises utilizing, at a second neural network, a linear model of an acoustic path between the first audio rendering device and the first audio rendering device; and
transmitting the second output to the second communication environment.