public void start() {
try {
audioSystem.start();
} catch (Exception ex) {
Logger.getLogger(ADC2Panel.class.getName()).log(Level.SEVERE, null, ex);
}
Timer timer =
new Timer(
50,
new ActionListener() {
public void actionPerformed(ActionEvent ae) {
updateMeters();
}
});
timer.start();
// setPreferredSize(new Dimension(500,80));
}
public ADC2Panel() throws Exception {
setLayout(new BorderLayout());
audioSystem = AudioSystem.instance();
peakIn = new AudioPeakMonitor();
// if (url) {
URL u = ((new File("/home/pjl/audiodump.wav")).toURI()).toURL();
// audioReader = new URLWavReader(u);
// URL u = ((new File("/home/pjl/dangermouse.mp3")).toURI()).toURL();
audioReader = new MP3AudioReader("file:/home/pjl/MissionImpossible.mp3", 2.0f);
quantizer = new QuantizerProcess();
float Fs = 11000;
final float preCutoff = Fs / 2;
AudioServer server = audioSystem.getServer();
final AudioProcess output = audioSystem.getOut();
server.setClient(
new AudioClient() {
int frameSize = 0;
public void work(int size) {
if (chunk == null || size != frameSize) {
frameSize = size;
chunk = new AudioBuffer(null, 2, size, 44100.0f);
chunk2 = new AudioBuffer(null, 2, size, 44100.0f);
chunk.setRealTime(true);
}
chunk.makeSilence();
if (audioReader != null) {
if ((audioReader instanceof AudioReader) && ((AudioReader) audioReader).eof()) {
} else {
audioReader.processAudio(chunk);
}
}
if (cancel) {
int n = chunk.getSampleCount();
for (int c = 0; c < chunk.getChannelCount(); c++) {
System.arraycopy(chunk.getChannel(c), 0, chunk2.getChannel(c), 0, n);
}
}
if (preFilterOn) {
preFilter.processAudio(chunk);
}
if (quantizeOn) {
quantizer.processAudio(chunk);
}
peakIn.processAudio(chunk);
if (cancel) {
int n = chunk.getSampleCount();
for (int c = 0; c < chunk.getChannelCount(); c++) {
float a[] = chunk.getChannel(c);
float b[] = chunk2.getChannel(c);
for (int i = 0; i < n; i++) {
a[i] = a[i] - b[i];
}
}
}
output.processAudio(chunk);
}
public void setEnabled(boolean arg0) {
// throw new UnsupportedOperationException("Not supported yet.");
}
});
configure();
}
void dispose() {
audioSystem.stop();
}