The intern reached 21 of 58 published transcripts as "Devin". The obvious fix —
seed his name in the Whisper initial prompt — only works for one of the two
transcription paths:
- backend/services/transcription.py (live show) uses mlx_whisper and does take
an initial_prompt. Added Devon there. This also picks up the Big Bend prompt
rewrite from the relocation work, which was sitting uncommitted.
- publish_episode.py, which actually produces the published transcripts, uses
LightningWhisperMLX, whose transcribe() signature is (audio_path, language).
It accepts no initial_prompt at all, so there is nothing to seed.
So the published path gets a deterministic correction pass instead:
fix_proper_nouns() rewrites known mishearings after transcription, preserving
casing (Devin/DEVIN/devin -> Devon/DEVON/devon) and matching whole words only,
so "Devinshire" is left alone. Verified against the real episode 58 transcript:
24 occurrences to 0, output byte-identical to the manual relabel in bf1afef.
Swapping the publish path to mlx_whisper would allow a real prompt, but that
changes the transcription engine for every episode and is a bigger call than
this warrants.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
