How keyword spotting models power "Hey Siri": a detailed technical guide
cneuralnetwork · x · 2026-09-07
A detailed blog by ML researcher cneuralnetwork explains how keyword spotting models work: detecting a predefined wake word instead of transcribing, processing 1-second sliding windows of 16 kHz audio for low latency, converting raw waveforms into time-frequency features, plus neural network design, training, and continuous detection details for on-device deployment.
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