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fix: send remaining sentences immediately when end_input() is called #4440

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fix: send remaining sentences immediately when end_input() is called #4440

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fix: send remaining sentences immediately when end_input() is called
martin-purplefish Jan 4, 2026
7fc73bb
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martin-purplefish Jan 4, 2026
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8 changes: 5 additions & 3 deletions livekit-agents/livekit/agents/tts/stream_pacer.py
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Original file line number Diff line number Diff line change
Expand Up @@ -73,7 +73,7 @@ def end_input(self) -> None:
if self._audio_emitter._dst_ch.closed:
# close the stream if the audio emitter is closed
self._closing = True
self._wakeup_event.set()
self._wakeup_event.set() # always wake up to send remaining sentences

async def aclose(self) -> None:
await self._sent_stream.aclose()
Expand Down Expand Up @@ -131,8 +131,10 @@ async def _send_task(self) -> None:
remaining_audio = (
audio_start_time + audio_duration - curr_time if audio_start_time > 0.0 else 0.0
)
if first_sentence or (
generation_stopped and remaining_audio <= self._options.min_remaining_audio
if (
first_sentence
or (generation_stopped and remaining_audio <= self._options.min_remaining_audio)
or (self._input_ended and self._sentences)
):
batch: list[str] = []
while self._sentences:
Expand Down