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servceis(cartesia,elevenlabs): use word start times instead

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This commit is contained in:
Aleix Conchillo Flaqué
2024-09-13 13:10:44 -07:00
parent cb36a71381
commit 1fe940bd6b
2 changed files with 6 additions and 11 deletions
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2
src/pipecat/services/cartesia.py
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@@ -177,7 +177,7 @@ class CartesiaTTSService(AsyncWordTTSService):
await self.add_word_timestamps([("LLMFullResponseEndFrame", 0)])
elif msg["type"] == "timestamps":
await self.add_word_timestamps(
list(zip(msg["word_timestamps"]["words"], msg["word_timestamps"]["end"]))
list(zip(msg["word_timestamps"]["words"], msg["word_timestamps"]["start"]))
)
elif msg["type"] == "chunk":
await self.stop_ttfb_metrics()

15
src/pipecat/services/elevenlabs.py
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@@ -51,22 +51,17 @@ def sample_rate_from_output_format(output_format: str) -> int:
def calculate_word_times(
alignment_info: Mapping[str, Any], cumulative_time: float
) -> List[Tuple[str, float]]:
end_times = [
s + d for s,
d in zip(
alignment_info["charStartTimesMs"],
alignment_info["charDurationsMs"])]
zipped_end_times = list(zip(alignment_info["chars"], end_times))
zipped_times = list(zip(alignment_info["chars"], alignment_info["charStartTimesMs"]))
words = "".join(alignment_info["chars"]).split(" ")
# Calculate end time for each word. We do this by finding a space character
# Calculate start time for each word. We do this by finding a space character
# and using the previous word time, also taking into account there might not
# be a space at the end.
times = []
for (i, (a, b)) in enumerate(zipped_end_times):
if a == " " or i == len(zipped_end_times) - 1:
t = cumulative_time + (zipped_end_times[i - 1][1] / 1000.0)
for (i, (a, b)) in enumerate(zipped_times):
if a == " " or i == len(zipped_times) - 1:
t = cumulative_time + (zipped_times[i - 1][1] / 1000.0)
times.append(t)
word_times = list(zip(words, times))