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Improving the latency of the HeyGenVideoService.

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Filipi Fuchter
2025-08-11 09:11:17 -03:00
parent 3331f71e17
commit b7f12a96f1
2 changed files with 3 additions and 1 deletions
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2
CHANGELOG.md
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@@ -20,6 +20,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
### Other ### Other
- Improving the latency of the `HeyGenVideoService`.
- Updated `15-switch-voices.py` and `15a-switch-languages.py` examples to show - Updated `15-switch-voices.py` and `15a-switch-languages.py` examples to show
how to enclose complex logic (e.g. `ParallelPipeline`) into a single processor how to enclose complex logic (e.g. `ParallelPipeline`) into a single processor
so the main pipeline becomes simpler. so the main pipeline becomes simpler.

2
src/pipecat/services/heygen/client.py
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@@ -362,7 +362,7 @@ class HeyGenClient:
"""Simulate audio playback timing with appropriate delays.""" """Simulate audio playback timing with appropriate delays."""
# Only sleep after we've sent the first second of audio # Only sleep after we've sent the first second of audio
# This appears to reduce the latency to receive the answer from HeyGen # This appears to reduce the latency to receive the answer from HeyGen
if self._audio_seconds_sent < 1.0: if self._audio_seconds_sent < 3.0:
self._audio_seconds_sent += self._send_interval self._audio_seconds_sent += self._send_interval
self._next_send_time = time.monotonic() + self._send_interval self._next_send_time = time.monotonic() + self._send_interval
return return