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Log when only interim transcripts are received without any final one #4696

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Log when only interim transcripts are received without any final one #4696

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13 changes: 13 additions & 0 deletions livekit-plugins/livekit-plugins-deepgram/livekit/plugins/deepgram/stt.py
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Original file line number Diff line number Diff line change
Expand Up @@ -406,6 +406,10 @@ def __init__(
self._request_id = ""
self._reconnect_event = asyncio.Event()

# sanity check for interim-only events
self._received_interim_results = False
self._received_final_results = False

def update_options(
self,
*,
Expand Down Expand Up @@ -694,20 +698,29 @@ def _process_stream_event(self, data: dict) -> None:
alternatives=alts,
)
self._event_ch.send_nowait(final_event)
self._received_final_results = True
else:
interim_event = stt.SpeechEvent(
type=stt.SpeechEventType.INTERIM_TRANSCRIPT,
request_id=request_id,
alternatives=alts,
)
self._event_ch.send_nowait(interim_event)
self._received_interim_results = True

# if we receive an endpoint, only end the speech if
# we either had a SpeechStarted event or we have a seen
# a non-empty transcript (deepgram doesn't have a SpeechEnded event)
if is_endpoint and self._speaking:
self._speaking = False
self._event_ch.send_nowait(stt.SpeechEvent(type=stt.SpeechEventType.END_OF_SPEECH))
if self._received_interim_results and not self._received_final_results:
logger.debug(
"received only interim results for user speech",
extra={"request_id": self._request_id},
)
self._received_interim_results = False
self._received_final_results = False

elif data["type"] == "Metadata":
pass # metadata is too noisy
Expand Down
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