Patent ID: 11967310
Assignee: GOOGLE LLC
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. A computer-implemented method when executed on data processing hardware causes the data processing hardware to perform operations for training an end-to-end keyword spotting model, the operations comprising:
receiving a training input audio sequence that contains a keyword, the training input audio sequence comprising:
a sequence of input frames that each include one or more respective audio features characterizing phonetic components of the keyword; and
binary labels assigned to the input frames;

training an end-to-end keyword spotting model on the training input audio sequence by:
assigning a first label to at least one input frame that includes one or more respective audio features characterizing a last phonetic component of the keyword; and
performing temporal smoothing on the sequence of input frames; and

providing the trained end-to-end keyword spotting model to a user device, the user device configured to execute the trained end-to-end keyword spotting model to detect a presence of the keyword in streaming audio without performing semantic analysis or speech recognition processing on the streaming audio.