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some change precision audio processing (#94)

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* some change precision audio processing

* fix clipping problem in resample

resample sometimes causes signal clipping, not just librosa.resample

* fix error
This commit is contained in:
autumnmotor
2023-04-22 20:39:47 +09:00
committed by GitHub
parent c423f77a16
commit 297d92bf5d
4 changed files with 32 additions and 9 deletions
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4
my_utils.py
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@@ -12,10 +12,10 @@ def load_audio(file, sr):
) # 防止小白拷路径头尾带了空格和"和回车
out, _ = (
ffmpeg.input(file, threads=0)
.output("-", format="s16le", acodec="pcm_s16le", ac=1, ar=sr)
.output("-", format="f32le", acodec="pcm_f32le", ac=1, ar=sr)
.run(cmd=["ffmpeg", "-nostdin"], capture_stdout=True, capture_stderr=True)
)
except Exception as e:
raise RuntimeError(f"Failed to load audio: {e}")
return np.frombuffer(out, np.int16).flatten().astype(np.float32) / 32768.0
return np.frombuffer(out, np.float32).flatten()