Amazon Technologies, Inc.

Thibaud Senechai

Chao Wang

Spyridon Matsoukas

Shiv Naga Prasad Vitaladevuni

Ming Sun

Yixin Gao

Anish N Shah

A system processes audio data to detect when it includes a representation of a wakeword or of an acoustic event. The system may receive or determine acoustic features for the audio data, such as log-filterbank energy (LFBE). The acoustic features may be used by a first, wakeword-detection model to detect the wakeword; the output of this model may be further processed using a softmax function, to smooth it, and to detect spikes. The same acoustic features may be also be used by a second, acoustic-event-detection model to detect the acoustic event; the output of this model may be further processed using a sigmoid function and a classifier. Another model may be used to extract additional features from the LFBE data; these additional features may be used by the other models.

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Somerville, MA, United States of America

Thibaud Senechai