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import unittest
import torchaudio
def set_audio_backend(backend):
"""Allow additional backend value, 'default'"""
backends = torchaudio.list_audio_backends()
if backend == 'soundfile-new':
be = 'soundfile'
torchaudio.USE_SOUNDFILE_LEGACY_INTERFACE = False
elif backend == 'default':
if 'sox_io' in backends:
be = 'sox_io'
elif 'soundfile' in backends:
be = 'soundfile'
torchaudio.USE_SOUNDFILE_LEGACY_INTERFACE = True
else:
raise unittest.SkipTest('No default backend available')
else:
be = backend
torchaudio.set_audio_backend(be)
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