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

Claim 10:
11. A system comprising:
data processing hardware; and
memory hardware in communication with the data processing hardware, the memory hardware storing instructions that when executed on the 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.