- Processing
- p5.js
- Processing.py
- Processing for Android

- Processing Foundation

This reference is for Processing 3.0+. If you have a previous version, use the reference included with your software in the Help menu. If you see any errors or have suggestions, please let us know. If you prefer a more technical reference, visit the Processing Core Javadoc and Libraries Javadoc.

Name | ### freq()
Examples |
    import processing.sound.*;

    WhiteNoise noise;
    HighPass highPass;

    float freq=2500;

    void setup() {
      size(640,360);
      background(255);

      // Create a noise generator and a highpass filter
      noise = new WhiteNoise(this);
      highPass = new HighPass(this);

      noise.play(0.5);
      highPass.process(noise);

      // Change the cutoff frequency of the filter
      highPass.freq(freq);
    }

    void draw() {
    }
Description | Set the cut off frequency for the filter
Syntax |
    highPass.freq()

Updated on November 10, 2017 05:36:33pm EST