This release is a pre-release and may not be stable for production use.
audio-resampler
Polyphase audio resampler as a Python extension. Downmix, resample and dtype conversion happen in a single pass over the buffer.
pip install audio-resampler
from audio_resampler import Converter, prewarm
conv = Converter(in_rate=48000, in_channels=2, out_rate=16000, out_channels=1, out_dtype="i16")
mono_16k = conv.process(stereo_48k_bytes)
# Optional: build coefficient tables up front instead of on first use.
prewarm([(48000, 16000)])
Wheels are abi3 and cover CPython 3.11+ on Linux, macOS and Windows.
Development
pip install maturin
maturin develop --release
1 maintainer
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