new_contents: #!/usr/bin/env python
  # Copyright 2016 Curtis Sand
  #
  # 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.
  
  """wav.py : library for handling wav format sound files."""
  
  import sys
  import argparse
  import math
  
  from scikits.audiolab import Sndfile, Format
  
  
  class WavFile(object):
      def __init__(self, filename, channels, framerate):
          self.filename = filename
          self.channels = channels
          self.framerate = framerate
          self._fhandle = Sndfile(self.filename, 'w', Format('wav'),
                                  self.channels, self.framerate)
  
      def write(self, wavedata):
          self._fhandle.write_frames(wavedata)
  
      def close(self):
          self._fhandle.close()
  
subject: add library for handling wav audio files