MIC_QUEUE claimed 64 was ~320 ms of 5 ms frames; the frames were 20 ms, so
it really allowed 1.28 s — and since a full tokio mpsc can only refuse the
FRESH frame, one worker stall turned the whole backlog into permanent
standing mic latency. The queue shrinks to 12 and the pump's mic task now
sheds oldest-first past a ~60 ms backlog, so a stall costs a short dropout
and heals itself. New per-stage counters (sent / dropped-full /
dropped-stale) surface through NativeClient::mic_stats for the stats HUDs.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
enricobuehlerandClaude Fable 5
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