Patent ID: 11862168
Assignee: AMAZON TECHNOLOGIES, INC.
Field: Computer technology (Electrical engineering)
Classification: CPC G  H | IPC G

Claim 4:
5. A method comprising:
receiving, from a device within an environment, a first audio signal generated by a first microphone of the device, the first audio signal representing first speech of a first participant and second speech of a second participant;
receiving, from the device, a first processed audio signal generated by the device, the first processed audio signal representing the first speech;
receiving, from the device, a second audio signal generated by a second microphone of the device, the second audio signal representing the first speech and the second speech;
receiving, from the device, a second processed audio signal generated by the device, the second processed audio signal representing the second speech;
determining that the environment includes the first participant and the second participant based at least in part on:
identifying, within the first audio signal, the first speech at a first increased energy level as compared to the second speech; and
identifying, within the second audio signal, the second speech at second increased energy level as compared to the first speech;

generating first audio data that represents the first speech of the first participant by attenuating the second speech of the second participant from at least one of the first audio signal or the first processed audio signal;
generating, based at least in part on the first audio data, a first audio signature associated with the first participant;
analyzing the first audio signature of the first audio data relative to a first stored audio signature to determine a first similarity between the first audio signature and the first stored audio signature;
determining, based at least in part on the first similarity, a first profile associated with the first stored audio signature, the first profile including a first identifier of the first participant;
generating second audio data that represents the second speech of the second participant by attenuating the first speech of the first participant from at least one of the second audio signal or the second processed audio signal;
associating the first speech with the first identifier; and
generating, based at least in part on the first audio data and the second audio data, a transcript of the first speech and the second speech, wherein the transcript indicates the first speech in association with the first identifier.