molluskandClaude Opus 4.8
a7ad07d1f5
Replace the per-frame hard-cut noise gate with a stateful envelope gate (src/audio/gate.rs): - Hysteresis: opens at the slider threshold, closes only below 0.6x that, so speech near the threshold doesn't flap the gate. - Attack/release: per-sample gain ramp (5ms open, 80ms close) instead of a click — the gate fades rather than dropping frames outright. - Hangover: holds the gate open 200ms after the level drops, so word tails and brief pauses aren't chopped. A fully-closed frame still reports don't-transmit, preserving the original bandwidth win of not sending pure silence (receiver jitter buffer conceals the gap). The live slider value is read per frame so changes apply immediately. Settings slider gains a one-line hint. 6 unit tests cover attack shape, hysteresis, hangover-then-release, disabled pass-through, and the closed-gate no-transmit path. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>