public void setup() {
int window_height = 220;
size((int) (window_height * 5.12f), 220);
canvas = createGraphics((int) (window_height * 5.12f) / 2, 220, JAVA2D);
textMode(SCREEN);
textFont(createFont("SanSerif", 12));
minim = new Minim(this);
in = minim.getLineIn(Minim.MONO, buffer_size, sample_rate);
// create an FFT object that has a time-domain buffer
// the same size as line-in's sample buffer
fft = new FFT(in.bufferSize(), in.sampleRate());
// Tapered window important for log-domain display
fft.window(FFT.HAMMING);
// initialize peak-hold structures
peaksize = 1 + Math.round(fft.specSize() / binsperband);
peaks = new float[peaksize];
peak_age = new int[peaksize];
particles = new Particle[fft.specSize()];
for (int i = 0; i < fft.specSize(); i++) particles[i] = new Particle(i);
}
private void drawWaveForm() {
for (int i = 0; i < in.bufferSize() - 1; i++) {
saved_buffer[i] = in.left.get(i);
line(i + 50, height / 2 + in.left.get(i) * 50, i + 51, height / 2 + in.left.get(i + 1) * 50);
}
}