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Tweak pipeline.multiply_volume (#100905)

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Erik Montnemery 2023-09-26 16:19:57 +02:00 committed by GitHub
parent 31e9ca0099
commit bd40cbcb21
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1 changed files with 6 additions and 13 deletions
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19
homeassistant/components/assist_pipeline/pipeline.py
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@ -1126,21 +1126,14 @@ class PipelineRun:
def _multiply_volume(chunk: bytes, volume_multiplier: float) -> bytes: def _multiply_volume(chunk: bytes, volume_multiplier: float) -> bytes:
"""Multiplies 16-bit PCM samples by a constant.""" """Multiplies 16-bit PCM samples by a constant."""
def _clamp(val: float) -> float:
"""Clamp to signed 16-bit."""
return max(-32768, min(32767, val))
return array.array( return array.array(
"h", "h",
[ (int(_clamp(value * volume_multiplier)) for value in array.array("h", chunk)),
int(
# Clamp to signed 16-bit range
max(
-32767,
min(
32767,
value * volume_multiplier,
),
)
)
for value in array.array("h", chunk)
],
).tobytes() ).tobytes()