Patent ID: 11908468
Assignee: AMAZON TECHNOLOGIES, INC.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 4:
5. A computer-implemented method comprising:
causing playback of output audio;
detecting, by at least one microphone of at least one user device, input audio representing user speech;
determining input audio data representing the user speech;
determining, by the at least one user device, time data representing a difference between a beginning of the playback of the output audio and the user speech;
using a first trained machine learning (ML) model, processing the input audio data to determine that the user speech is system directed; and
based at least in part on determining that the user speech is system directed, sending, to at least one remote device, the input audio data and the time data to determine, using the input audio data and the time data, that the user speech refers to a portion of the output audio.