static void mp3ToWAV(File inputFile, File outputFile) ctex {
  AudioFileFormat inputFileFormat = AudioSystem.getAudioFileFormat(inputFile);
  AudioFormat inputFormat = inputFileFormat.getFormat();
  float freq = inputFormat.getSampleRate();
  int channels = inputFormat.getChannels();
  AudioFormat outputFormat = new AudioFormat(freq, 16, inputFormat.getChannels(), true, false);

  audioCopy(inputFile, outputFile, outputFormat);
}