Alex 36aeb19280 Add binaural recording + tune spatial tracking ...

binaural_recorder.py: Records left/right ear streams as stereo WAV
in rolling 5-minute segments. Training data for spatial audio models.
Enabled via BINAURAL_RECORD=1 env var.

spatial.py: Tune smoothing — alpha 0.3→0.4 (snappier response),
idle return speed 0.05→0.03 (gentler drift), timeout 2s→1.5s.

headmic.py: Wire binaural recorder into audio loop, add /recording
endpoint for stats, feed both ear streams (not just best beam).

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

2026-04-12 20:53:05 -05:00

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