You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
58 lines
2.0 KiB
58 lines
2.0 KiB
# Copyright (c) 2021 PaddlePaddle Authors. All Rights Reserved.
|
|
#
|
|
# Licensed under the Apache License, Version 2.0 (the "License");
|
|
# you may not use this file except in compliance with the License.
|
|
# You may obtain a copy of the License at
|
|
#
|
|
# http://www.apache.org/licenses/LICENSE-2.0
|
|
#
|
|
# Unless required by applicable law or agreed to in writing, software
|
|
# distributed under the License is distributed on an "AS IS" BASIS,
|
|
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
# See the License for the specific language governing permissions and
|
|
# limitations under the License.
|
|
from nara_wpe.wpe import wpe
|
|
|
|
|
|
class WPE(object):
|
|
def __init__(self,
|
|
taps=10,
|
|
delay=3,
|
|
iterations=3,
|
|
psd_context=0,
|
|
statistics_mode="full"):
|
|
self.taps = taps
|
|
self.delay = delay
|
|
self.iterations = iterations
|
|
self.psd_context = psd_context
|
|
self.statistics_mode = statistics_mode
|
|
|
|
def __repr__(self):
|
|
return ("{name}(taps={taps}, delay={delay}"
|
|
"iterations={iterations}, psd_context={psd_context}, "
|
|
"statistics_mode={statistics_mode})".format(
|
|
name=self.__class__.__name__,
|
|
taps=self.taps,
|
|
delay=self.delay,
|
|
iterations=self.iterations,
|
|
psd_context=self.psd_context,
|
|
statistics_mode=self.statistics_mode, ))
|
|
|
|
def __call__(self, xs):
|
|
"""Return enhanced
|
|
|
|
:param np.ndarray xs: (Time, Channel, Frequency)
|
|
:return: enhanced_xs
|
|
:rtype: np.ndarray
|
|
|
|
"""
|
|
# nara_wpe.wpe: (F, C, T)
|
|
xs = wpe(
|
|
xs.transpose((2, 1, 0)),
|
|
taps=self.taps,
|
|
delay=self.delay,
|
|
iterations=self.iterations,
|
|
psd_context=self.psd_context,
|
|
statistics_mode=self.statistics_mode, )
|
|
return xs.transpose(2, 1, 0)
|