Patent ID: 11869510
Assignee: AMAZON TECHNOLOGIES, INC.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 16:
17. An apparatus, comprising:
a microphone;
one or more processors communicatively coupled to the microphone; and
a memory storing program instructions that, when executed by the one or more processors, cause the one or more processors to at least:
receive, from the microphone and as part of an enrollment process, a first audio data segment;
convert the first audio data segment into a first log melspectrogram;
process the first log melspectrogram to determine that at least a portion of the first log melspectrogram represents a first keyword;
receive, from the microphone and as part of the enrollment process, a second audio data segment;
convert the second audio data segment into a second log melspectrogram;
process the second log melspectrogram to determine that at least a portion of the second log melspectrogram represents a second keyword; and
in response to a determination that the at least a portion of the first log melspectrogram represents the first keyword and a determination that the at least a portion of the second log melspectrogram represents the second keyword, authenticate the first audio data segment and the second audio data segment as intentionally spoken as part of the enrollment process;

in response to authentication that the first audio data segment and the second audio data segment correspond to phrases intentionally spoken:
cause a recording of the phrases intentionally spoken to be transmitted from a second device to the apparatus; and
generate an embedding vector based at least in part on the phrases, the first audio data segment, and the second audio data segment.