Alex 88fb18800c Fix VAD — use processed_doa NaN as speech indicator ...

The auto-select beam always returns an angle (even for noise), so
VAD was always true. The processed_doa (index 0) is NaN when no
speech is present and a real angle when speech is detected.
Now: angle from auto-select beam, VAD from processed_doa being non-NaN.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

2026-04-12 21:08:50 -05:00

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