Revert of C++ porting of the initial python script for conversational speech generation.

webrtc/modules/audio_processing/test/py_conversational_speech/generate_conversational_tracks.py

Index: webrtc/modules/audio_processing/test/py_conversational_speech/generate_conversational_tracks.py
diff --git a/webrtc/modules/audio_processing/test/py_conversational_speech/generate_conversational_tracks.py b/webrtc/modules/audio_processing/test/py_conversational_speech/generate_conversational_tracks.py
new file mode 100644
index 0000000000000000000000000000000000000000..41e3bbdc6bed31f1060a8d331cc45174050d97a0
--- /dev/null
+++ b/webrtc/modules/audio_processing/test/py_conversational_speech/generate_conversational_tracks.py
@@ -0,0 +1,58 @@
+#!/usr/bin/env python
+# 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.
+
+"""Generate multiple-end audio tracks to simulate conversational
+   speech with two or more participants.
+
+Usage: generate_conversational_tracks.py
+          -i path/to/source/audiotracks
+          -t path/to/timing_file.txt
+          -o output/path
+"""
+
+import argparse
+import logging
+import sys
+
+def _InstanceArgumentsParser():
+  parser = argparse.ArgumentParser(description=(
+      'Generate multiple-end audio tracks to simulate conversational speech '
+      'with two or more participants.'))
+
+  parser.add_argument('-i', '--input_tracks_path', required=True,
+                      help='directory containing the speech turn wav files')
+
+  parser.add_argument('-t', '--timing_file', required=True,
+                      help='path to the timing text file')
+
+  parser.add_argument('-o', '--output_dir', required=False,
+                      help=('base path to the output directory in which the '
+                            'output wav files are saved'),
+                      default='output')
+
+  return parser
+
+
+def main():
+  # TODO(alessiob): level = logging.INFO once debugged.
+  logging.basicConfig(level=logging.DEBUG)
+
+  parser = _InstanceArgumentsParser()
+  args = parser.parse_args()
+
+  # TODO(alessiob): pass the arguments to the app controller.
+
+  # TODO(alessiob): remove when comment above addressed.
+  logging.debug(args)
+
+  sys.exit(0)
+
+
+if __name__ == '__main__':
+  main()