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# Copyright 2016 The TensorFlow 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.
# ==============================================================================
"""Signal processing operations.
See the
[Contrib Signal](https://tensorflow.org/api_guides/python/contrib.signal)
guide.
@@frame
@@hamming_window
@@hann_window
@@inverse_stft
@@inverse_stft_window_fn
@@mfccs_from_log_mel_spectrograms
@@linear_to_mel_weight_matrix
@@overlap_and_add
@@stft
[hamming]: https://en.wikipedia.org/wiki/Window_function#Hamming_window
[hann]: https://en.wikipedia.org/wiki/Window_function#Hann_window
[mel]: https://en.wikipedia.org/wiki/Mel_scale
[mfcc]: https://en.wikipedia.org/wiki/Mel-frequency_cepstrum
[stft]: https://en.wikipedia.org/wiki/Short-time_Fourier_transform
"""
from __future__ import absolute_import
from __future__ import division
from __future__ import print_function
from tensorflow.contrib.signal.python.ops.mel_ops import linear_to_mel_weight_matrix
from tensorflow.contrib.signal.python.ops.mfcc_ops import mfccs_from_log_mel_spectrograms
from tensorflow.contrib.signal.python.ops.reconstruction_ops import overlap_and_add
from tensorflow.contrib.signal.python.ops.shape_ops import frame
# `frame` used to be named `frames`, which is a noun and not a verb.
# Keep an alias to `frames` for backwards compatibility.
from tensorflow.contrib.signal.python.ops.shape_ops import frame as frames
from tensorflow.contrib.signal.python.ops.spectral_ops import inverse_stft
from tensorflow.contrib.signal.python.ops.spectral_ops import inverse_stft_window_fn
from tensorflow.contrib.signal.python.ops.spectral_ops import stft
from tensorflow.contrib.signal.python.ops.window_ops import hamming_window
from tensorflow.contrib.signal.python.ops.window_ops import hann_window
from tensorflow.python.util.all_util import remove_undocumented
remove_undocumented(__name__)
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