mirror of
https://github.com/Anjok07/ultimatevocalremovergui.git
synced 2024-11-13 18:40:48 +01:00
93 lines
2.1 KiB
Python
93 lines
2.1 KiB
Python
import os
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import subprocess
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import tempfile
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import six
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import numpy as np
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import soundfile as sf
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import sys
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if getattr(sys, 'frozen', False):
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BASE_PATH_RUB = sys._MEIPASS
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else:
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BASE_PATH_RUB = os.path.dirname(os.path.abspath(__file__))
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__all__ = ['time_stretch', 'pitch_shift']
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__RUBBERBAND_UTIL = os.path.join(BASE_PATH_RUB, 'rubberband')
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if six.PY2:
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DEVNULL = open(os.devnull, 'w')
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else:
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DEVNULL = subprocess.DEVNULL
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def __rubberband(y, sr, **kwargs):
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assert sr > 0
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# Get the input and output tempfile
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fd, infile = tempfile.mkstemp(suffix='.wav')
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os.close(fd)
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fd, outfile = tempfile.mkstemp(suffix='.wav')
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os.close(fd)
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# dump the audio
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sf.write(infile, y, sr)
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try:
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# Execute rubberband
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arguments = [__RUBBERBAND_UTIL, '-q']
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for key, value in six.iteritems(kwargs):
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arguments.append(str(key))
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arguments.append(str(value))
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arguments.extend([infile, outfile])
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subprocess.check_call(arguments, stdout=DEVNULL, stderr=DEVNULL)
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# Load the processed audio.
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y_out, _ = sf.read(outfile, always_2d=True)
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# make sure that output dimensions matches input
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if y.ndim == 1:
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y_out = np.squeeze(y_out)
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except OSError as exc:
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six.raise_from(RuntimeError('Failed to execute rubberband. '
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'Please verify that rubberband-cli '
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'is installed.'),
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exc)
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finally:
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# Remove temp files
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os.unlink(infile)
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os.unlink(outfile)
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return y_out
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def time_stretch(y, sr, rate, rbargs=None):
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if rate <= 0:
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raise ValueError('rate must be strictly positive')
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if rate == 1.0:
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return y
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if rbargs is None:
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rbargs = dict()
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rbargs.setdefault('--tempo', rate)
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return __rubberband(y, sr, **rbargs)
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def pitch_shift(y, sr, n_steps, rbargs=None):
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if n_steps == 0:
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return y
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if rbargs is None:
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rbargs = dict()
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rbargs.setdefault('--pitch', n_steps)
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return __rubberband(y, sr, **rbargs)
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