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Wake word detection on your microphone, on your CPU through WebAssembly with tract. Nothing leaves your machine.
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The trace is the keyword probability over the last ten seconds, each point for the 1.8 s of audio ending there. tract runs the whole chain as one streaming graph, 80 ms at a time: resampling to 16 kHz, log-Mel features, and the gated dilated convolutions of Coucke et al., 2018. Model © Snips and © Sonos. Source code