Frequency Spectrum
Visualize the frequency spectrum of live audio input.
To run this example locally, you will need the p5.sound library and a running local server.
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let mic, fft;
function setup() {
createCanvas(710, 400);
noFill();
mic = new p5.AudioIn();
mic.start();
fft = new p5.FFT();
fft.setInput(mic);
}
function draw() {
background(200);
let spectrum = fft.analyze();
beginShape();
for (i = 0; i < spectrum.length; i++) {
vertex(i, map(spectrum[i], 0, 255, height, 0));
}
endShape();
}
