Hybrid ANC — on-device
AI noise cancellation for defence radio. The neural network runs on this device — no server, nothing uploaded, works offline once loaded.
measuring…
Listen — A / B
Tap to switch while you speak. Both paths are time-aligned, so only the noise changes.
Inject battlefield noise
Noise is mixed digitally into your microphone signal before the AI sees it, at the SNR you set relative to your own speaking level.
Radio transmit
Fire the gunshot pad without speaking: a conventional voice switch keys the radio on the gunfire; the AI one keys only when the network lets the sound through - speech, not suppressed noise. reset counters
Model
GTCRN fine-tuned on defence noise — 23.7 K trainable parameters. INT8 on the inner convolution and linear layers, calibrated on real mixtures; the input/output layers, GRUs and grouped transposed convolutions stay FP32 (quantising those cost 2 dB). At this size INT8 is neither smaller nor faster: it is here to show it running on-device.