hotato
GitHub

VFA-2026-0002

End-of-turn detection fires at the wrong moment, so the agent either answers before the caller has finished or waits after they have.

acknowledged7 independent reportslast reported 2026-07-14seen on azure-speech, cartesia, deepgram, elevenlabs, livekit, pipecat, silero, twilio

What this is

Filed as Endpoint misdetection, the name every report of this mode is collected under.

A failure mode is one named thing that goes wrong on a live call. This record carries every public report of it the atlas has found, in each reporter's own words, and a status that moves only when a re-check stores the artifact behind the move. Status acknowledged: the thread it was reported in has been acknowledged upstream.

Evidence

Every independent public report of this mode, newest first: who wrote it, where, when, what they said, and the link back to the post it came from.

  1. Propconnect-aion GitHub issues2026-07-14cartesiadeepgramlivekit
    ...report — I may well be misreading the design intent. ### What I observed turn-detector-v1, English, unlikely_threshold: 0.56, no overrides. The same word, spoken twice, in two sessions — same...

    https://github.com/livekit/agents/issues/6415

    first seen 2026-07-14 · fetched 2026-07-25T17:50:25Z · body sha256 e96eff80b1a938ce

  2. Pulkit0729on GitHub issues2026-07-12deepgrampipecat
    ...await self.handle_prediction_result(prediction) self.turn_complete = state == EndOfTurnState.COMPLETE # Start the STT timeout (adjusted by VAD stop_secs since that time already elapsed) timeout = max(0, self.stt_timeout - self.stop_secs) The comment...

    https://github.com/pipecat-ai/pipecat/issues/5006

    first seen 2026-07-12 · fetched 2026-07-25T17:50:31Z · body sha256 4891230123214ad1

  3. Marc_Torrellas_Socastroon community.livekit.io2026-06-10
    I’m getting message: “stt end of speech received while vad is still in a speech segment, flushing vad | extras: vad_speech_start_time=1781089362.6959133, flushed=True” as a warning but it seems like a...

    https://community.livekit.io/t/warning-stt-end-of-speech-received-while-vad-is-still-in-a-speech-segment-flushing-vad/1399

    first seen 2026-06-10 · fetched 2026-07-25T18:25:16Z · body sha256 29133c36b1e069f5

  4. TimeHorizon2100on GitHub issues2026-06-03twilio
    ...was filtering silence. - Now forwarding full audio stream including silence to allow model-side VAD/end-of-turn. - Reduced and simplified prompt for faster speech output. - Fixed language typo in prompt...

    https://github.com/twilio/twilio-python/issues/927

    first seen 2026-06-03 · fetched 2026-07-24T21:00:36Z · body sha256 fededd97052cf300

  5. evara-aion Hacker News2026-03-03deepgramelevenlabstwilio
    ...jumping in mid-sentence or waiting too long. Switching from fixed silence thresholds to semantic end-of-turn detection was night and day. One dimension I'd add: geography matters even more when your...

    https://news.ycombinator.com/item?id=47230233

    first seen 2026-03-03 · fetched 2026-07-25T17:50:19Z · body sha256 7b3c299ade3943aa

  6. nowittyusernameon Hacker News2026-02-16
    ...him PTT by default as the problems of the model accurately guessing the end of utterance are just too great. I think it can be solved in the future but,...

    https://news.ycombinator.com/item?id=47029721

    first seen 2026-02-16 · fetched 2026-07-24T20:53:10Z · body sha256 2c0a1d37a6c52fa7

  7. Jeeva-MVon GitHub issues2025-04-05azure-speechlivekitsilero
    ...any suggestions on how to tackle this will be helpful. Attaching the STT and VAD configs along with a sample log file for reference. Azure-configs (Tried with multi-lingual detection as...

    https://github.com/livekit/agents/issues/1893

    first seen 2025-04-05 · fetched 2026-07-26T01:11:30Z · body sha256 1bbeb9bd6df51b2d

Each quote is at most 30 words around the reported failure and links to the post it came from. If you wrote one of these and want it off this page, the removal path takes it down within 24 hours.

Hit this one yourself? Add your call to this entry: the stack, the versions, and what the caller heard. It lands as another independent report on this page, with your handle and a link back to what you wrote.

Report another occurrence

The form is a GitHub issue on the hotato repo. Prefer email? [email protected] reaches a person either way.

What is measurable

Evidence tier: Atlas record: every field on this page traces to a fetched public artifact.

What it establishes

  • Every report below links to the original post and names the handle that wrote it; the quote is at most 30 words around the reported failure.
  • The status changes only when a re-check stores the evidence link, the quote and the date behind the change.
  • Every timestamp comes from the fetched artifact it describes, recorded with the sha256 of the response body it was read from.

What your trace settles

  • Reproducing the mode on your own stack is the next step: the reports below carry the configuration each reporter was running.
bash
# the timing incidents in one recording, ranked
hotato autopsy ./call.wav

The tier above is what this record establishes on its own: linked sources, an artifact behind every status move, and timestamps that trace to a fetched response. To put a number on your own call, hotato autopsy reads a recording you already have and ranks the timing incidents in it. hotato is MIT and runs locally. getting started.

Status history

A daily re-check reads every source thread on this page. The status moves when that re-check stores the link, the quote and the date behind the move, so every state on this record is one you can open.

  1. openacknowledged2026-07-26
    issue closed (not_planned)

    https://github.com/livekit/agents/issues/1893

    evidence dated 2026-07-26

Discussion

Reader discussion of this mode: what fixed it, what did not, and what the record here is missing. It is a conversation, not part of the evidence above. The reports on this page are attributed and linked to their sources, and a comment is a comment.

Open this discussion on GitHub

The record

Atlas id
VFA-2026-0002
Mode id
pat_4be4cb5af54e4a4aaa9ff1a4
Content digest
sha256:4be4cb5af54e4a4aaa9ff1a4d0a837211d90735f9dea2da06e96a9bbe6b4d80a
First reported
2025-04-05
Last reported
2026-07-14
First seen by the atlas
2026-07-21T08:56:59Z
Last re-checked
2026-07-21T08:56:59Z
Reported on
azure-speechcartesiadeepgramelevenlabslivekitpipecatsilerotwilio
Sources
GitHub issues, Hacker News, community.livekit.io
Scope
7 independent public reports across 3 sources. This entry states where the mode has been reported; where else it can occur is what the next report settles.

References

Every link this entry stands on: the post behind each report, and the artifact behind each status move.

  1. reporthttps://github.com/livekit/agents/issues/6415 · Propconnect-ai · GitHub issues · 2026-07-14
  2. reporthttps://github.com/pipecat-ai/pipecat/issues/5006 · Pulkit0729 · GitHub issues · 2026-07-12
  3. reporthttps://community.livekit.io/t/warning-stt-end-of-speech-received-while-vad-is-still-in-a-speech-segment-flushing-vad/1399 · Marc_Torrellas_Socastro · community.livekit.io · 2026-06-10
  4. reporthttps://github.com/twilio/twilio-python/issues/927 · TimeHorizon2100 · GitHub issues · 2026-06-03
  5. reporthttps://news.ycombinator.com/item?id=47230233 · evara-ai · Hacker News · 2026-03-03
  6. reporthttps://news.ycombinator.com/item?id=47029721 · nowittyusername · Hacker News · 2026-02-16
  7. reporthttps://github.com/livekit/agents/issues/1893 · Jeeva-MV · GitHub issues · 2025-04-05

Machine surfaces

This entry, for an agent:feed.jsonfeed.atomfeed.schema.jsonatlas.llms.txt

Removal

If you wrote something quoted on this page and want it gone, one email does it. The removal path takes the quote, the handle and the link off this page, out of the feeds and out of the llms.txt within 24 hours, and tombstones the id so the entry cannot quietly return at a new address.