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46 lines
1.3 KiB
46 lines
1.3 KiB
from nara_wpe.wpe import wpe
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class WPE(object):
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def __init__(
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self, taps=10, delay=3, iterations=3, psd_context=0, statistics_mode="full"
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):
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self.taps = taps
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self.delay = delay
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self.iterations = iterations
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self.psd_context = psd_context
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self.statistics_mode = statistics_mode
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def __repr__(self):
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return (
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"{name}(taps={taps}, delay={delay}"
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"iterations={iterations}, psd_context={psd_context}, "
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"statistics_mode={statistics_mode})".format(
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name=self.__class__.__name__,
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taps=self.taps,
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delay=self.delay,
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iterations=self.iterations,
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psd_context=self.psd_context,
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statistics_mode=self.statistics_mode,
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)
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)
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def __call__(self, xs):
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"""Return enhanced
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:param np.ndarray xs: (Time, Channel, Frequency)
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:return: enhanced_xs
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:rtype: np.ndarray
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"""
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# nara_wpe.wpe: (F, C, T)
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xs = wpe(
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xs.transpose((2, 1, 0)),
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taps=self.taps,
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delay=self.delay,
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iterations=self.iterations,
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psd_context=self.psd_context,
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statistics_mode=self.statistics_mode,
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)
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return xs.transpose(2, 1, 0)
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