/**
* Command line interface to the vocal tract linear scaler effect.
*
* @param args the command line arguments. Exactly two arguments are expected: (1) the factor by
* which to scale the vocal tract (between 0.25 = very long and 4.0 = very short vocal tract);
* (2) the filename of the wav file to modify. Will produce a file basename_factor.wav, where
* basename is the filename without the extension.
* @throws Exception if processing fails for some reason.
*/
public static void main(String[] args) throws Exception {
if (args.length != 2) {
System.err.println(
"Usage: java " + VocalTractLinearScalerEffect.class.getName() + " <factor> <filename>");
System.exit(1);
}
float factor = Float.parseFloat(args[0]);
String filename = args[1];
AudioDoubleDataSource input =
new AudioDoubleDataSource(AudioSystem.getAudioInputStream(new File(filename)));
AudioFormat format = input.getAudioFormat();
VocalTractLinearScalerEffect effect =
new VocalTractLinearScalerEffect((int) format.getSampleRate());
DoubleDataSource output = effect.apply(input, "amount:" + factor);
DDSAudioInputStream audioOut = new DDSAudioInputStream(output, format);
String outFilename = FilenameUtils.removeExtension(filename) + "_" + factor + ".wav";
AudioSystem.write(audioOut, AudioFileFormat.Type.WAVE, new File(outFilename));
System.out.println("Created file " + outFilename);
}
