Mike Swanson 6cc9043b8e Audio processor: validated voice profiling accuracy, tuned threshold ...

- Fine-grained speaker analysis (3s windows, 1s hop) across 42min episode
- Host voice: 0.90-0.98 similarity (clear positive match)
- Callers: 0.65-0.68 (correctly below threshold)
- Produced audio/clips: 0.53-0.65 (correctly identified as non-host)
- Co-host/other speakers: 0.56-0.62 (correctly identified)
- Tuned host_match_threshold from 0.75 to 0.83 based on empirical data
- Cross-referenced dips with transcript: correctly identifies callers,
  show intros, played audio clips, and station breaks
- Batch transcription of 7 additional training episodes in progress

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

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