Total Harmonic Distorsion plus noise (THD+n) score in APM-QA.

modules/audio_processing/test/py_quality_assessment/quality_assessment/test_data_generation.py

 # Copyright (c) 2017 The WebRTC project authors. All Rights Reserved.
 #
 # Use of this source code is governed by a BSD-style license
 # that can be found in the LICENSE file in the root of the source
 # tree. An additional intellectual property rights grant can be found
 # in the file PATENTS.  All contributing project authors may
 # be found in the AUTHORS file in the root of the source tree.
 
 """Test data generators producing signals pairs intended to be used to
 test the APM module. Each pair consists of a noisy input and a reference signal.
@@ skipping 129 matching lines @@
     Raises:
       InputSignalCreatorException
     """
     filename = os.path.splitext(os.path.split(input_signal_filepath)[-1])[0]
     filename_parts = filename.split('-')
 
     if len(filename_parts) < 2:
       raise exceptions.InputSignalCreatorException(
           'Cannot parse input signal file name')
 
-    signal = input_signal_creator.InputSignalCreator.Create(
+    signal, metadata = input_signal_creator.InputSignalCreator.Create(
         filename_parts[0], filename_parts[1].split('_'))
 
     signal_processing.SignalProcessingUtils.SaveWav(
         input_signal_filepath, signal)
+    data_access.Metadata.SaveFileMetadata(input_signal_filepath, metadata)
 
   def _Generate(
       self, input_signal_filepath, test_data_cache_path, base_output_path):
     """Abstract method to be implemented in each concrete class.
     """
     raise NotImplementedError()
 
   def _AddNoiseSnrPairs(self, base_output_path, noisy_mix_filepaths,
                         snr_value_pairs):
     """Adds noisy-reference signal pairs.
@@ skipping 362 matching lines @@
     # Apply impulse response.
     processed_signal = (
         signal_processing.SignalProcessingUtils.ApplyImpulseResponse(
             input_signal, impulse_response))
 
     # Save.
     signal_processing.SignalProcessingUtils.SaveWav(
         noise_track_filepath, processed_signal)
 
     return processed_signal