hi
how to set frequency values to each peak in sound library example
/**
* Inspect the frequency spectrum of different simple oscillators.
*/
import processing.sound.*;
// All oscillators are instances of the Oscillator superclass.
Oscillator oscs[] = new Oscillator[5];
// Store information on which of the oscillators is currently playing.
int current = 0;
FFT fft;
int fftBands = 512;
void setup() {
size(640, 360);
background(255);
// Turn the volume down globally.
Sound s = new Sound(this);
s.volume(0.2);
// Create the oscillators and put them into an array.
oscs[0] = new SinOsc(this);
oscs[1] = new TriOsc(this);
oscs[2] = new SawOsc(this);
oscs[3] = new SqrOsc(this);
// Special treatment for the Pulse oscillator to set its pulse width.
Pulse pulse = new Pulse(this);
pulse.width(0.05);
oscs[4] = pulse;
// Initialise the FFT and start playing the (default) oscillator.
fft = new FFT(this, 512);
oscs[current].play();
fft.input(oscs[current]);
}
void draw() {
// Only play one of the four oscillators, based on mouseY
int nextOscillator = constrain(floor(map(mouseY, 0, height, 0, oscs.length)), 0, oscs.length - 1);
if (nextOscillator != current) {
oscs[current].stop();
current = nextOscillator;
// Switch FFT analysis over to the newly selected oscillator.
fft.input(oscs[current]);
// Play
oscs[current].play();
}
// Map mouseX from 20Hz to 22000Hz for frequency.
float frequency = map(mouseX, 0, width, 20.0, 22000.0);
// Update oscillator frequency.
oscs[current].freq(frequency);
// Draw frequency spectrum.
background(125, 255, 125);
fill(255, 0, 150);
noStroke();
fft.analyze();
float r_width = width/float(fftBands);
for (int i = 0; i < fftBands; i++) {
rect( i*r_width, height, r_width, -fft.spectrum[i]*height);
}
// Display the name of the oscillator class.
textSize(32);
fill(0);
float verticalPosition = map(current, -1, oscs.length, 0, height);
text(oscs[current].getClass().getSimpleName(), 0, verticalPosition);
}
thanks in advance
