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| Class | |
|---|---|
| Name | analyze() |
| Examples |
import processing.sound.*;
FFT fft;
AudioIn in;
int bands = 512;
float[] spectrum = new float[bands];
void setup() {
size(512, 360);
background(255);
// Create an Input stream which is routed into the Amplitude analyzer
fft = new FFT(this, bands);
in = new AudioIn(this, 0);
// start the Audio Input
in.start();
// patch the AudioIn
fft.input(in);
}
void draw() {
background(255);
fft.analyze(spectrum);
for(int i = 0; i < bands; i++){
// The result of the FFT is normalized
// draw the line for frequency band i scaling it up by 5 to get more amplitude.
line( i, height, i, height - spectrum[i]*height*5 );
}
}
|
| Description | Queries a value from the analyzer and returns a vector the size of the pre-defined number of bands. |
| Syntax | .analyze(value) .analyze() |
| Returns | void |
