tts-dev benched both endpoints against a Whisper baseline. FV wins at both clip
lengths (155/391 ms vs IRV 354/1010 vs whisper-large-v3 457/690) — IRV is slower
than the incumbent at 6.24 s, so the duplicate seat is now retirable on evidence
rather than on tidiness. Their length sweep fits ~58 ms fixed + 56 ms per
audio-second, asymptote ~17.8x realtime, independently reproducing our 17x on a
different clip and a different harness. The gateway hop measured below their
harness resolution, so ext-stt is the right consumer path.
Two caveats recorded against our own numbers: their between-run variance is ±20%
because GPU 0 carries the live chat path, and our 0.50 s median was taken on an
idle GPU 3 — marked as a best case, not a comparable.
Also records tts-dev's retraction, which is the durable lesson: published RTFx is
batched throughput on datacenter hardware, not single-stream latency, and the two
differ by ~200x. Their plan had projected 60-120 ms from it.
Separately, chasing the one stale Homepage href they flagged turned up 96
occurrences of the retired wg0 lifeline 10.100.79.3 under /opt/docker on irv-ml1.
Most are cosmetic, but voice-studio is genuinely broken: it is configured to reach
studio-gate at that address, both are running, they sit on separate docker
networks, and the address is on no interface on the host. Failing since the
2026-09-06 cutover with nothing alerting. ext-tts verified unaffected.
Not fixed here — eight containers to recreate, three load-bearing, and the
voice-studio repair touches app.py rather than config. Surfaced with evidence.
The pattern is the third of its shape: a retired address needs a repo-wide grep by
ADDRESS rather than by hostname, and container labels live in no file the sweep
reads until the container is recreated.
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