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Side by Side Diff: webrtc/modules/audio_processing/test/py_quality_assessment/quality_assessment/noise_generation.py

Issue 2723703002: Evaluation scores export library and CSS file for the exported HTML file (Closed)
Patch Set: merge Created 3 years, 8 months ago
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1 # Copyright (c) 2017 The WebRTC project authors. All Rights Reserved. 1 # Copyright (c) 2017 The WebRTC project authors. All Rights Reserved.
2 # 2 #
3 # Use of this source code is governed by a BSD-style license 3 # Use of this source code is governed by a BSD-style license
4 # that can be found in the LICENSE file in the root of the source 4 # that can be found in the LICENSE file in the root of the source
5 # tree. An additional intellectual property rights grant can be found 5 # tree. An additional intellectual property rights grant can be found
6 # in the file PATENTS. All contributing project authors may 6 # in the file PATENTS. All contributing project authors may
7 # be found in the AUTHORS file in the root of the source tree. 7 # be found in the AUTHORS file in the root of the source tree.
8 8
9 """Noise generators producing pairs of signals intended to be used to test the 9 """Noise generators producing pairs of signals intended to be used to test the
10 APM module. Each pair consists of a noisy and a reference signal. The former 10 APM module. Each pair consists of a noisy and a reference signal. The former
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28 try: 28 try:
29 import scipy.io 29 import scipy.io
30 except ImportError: 30 except ImportError:
31 logging.critical('Cannot import the third-party Python package scipy') 31 logging.critical('Cannot import the third-party Python package scipy')
32 sys.exit(1) 32 sys.exit(1)
33 33
34 from . import data_access 34 from . import data_access
35 from . import exceptions 35 from . import exceptions
36 from . import signal_processing 36 from . import signal_processing
37 37
38
38 class NoiseGenerator(object): 39 class NoiseGenerator(object):
39 """Abstract class responsible for the generation of noisy signals. 40 """Abstract class responsible for the generation of noisy signals.
40 41
41 Given a clean signal, it generates two streams named noisy signal and 42 Given a clean signal, it generates two streams named noisy signal and
42 reference. The former is the clean signal deteriorated by the noise source, 43 reference. The former is the clean signal deteriorated by the noise source,
43 the latter goes through the same deterioration process, but more "gently". 44 the latter goes through the same deterioration process, but more "gently".
44 Noisy signal and reference are produced so that the reference is the signal 45 Noisy signal and reference are produced so that the reference is the signal
45 expected at the output of the APM module when the latter is fed with the nosiy 46 expected at the output of the APM module when the latter is fed with the nosiy
46 signal. 47 signal.
47 48
(...skipping 422 matching lines...) Expand 10 before | Expand all | Expand 10 after
470 # Apply impulse response. 471 # Apply impulse response.
471 processed_signal = ( 472 processed_signal = (
472 signal_processing.SignalProcessingUtils.apply_impulse_response( 473 signal_processing.SignalProcessingUtils.apply_impulse_response(
473 input_signal, impulse_response)) 474 input_signal, impulse_response))
474 475
475 # Save. 476 # Save.
476 signal_processing.SignalProcessingUtils.save_wav( 477 signal_processing.SignalProcessingUtils.save_wav(
477 noise_track_filepath, processed_signal) 478 noise_track_filepath, processed_signal)
478 479
479 return processed_signal 480 return processed_signal
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