p5.js | reverseBuffer() Function

Last Updated : 12 Jul, 2025
The reverseBuffer() function is an inbuilt function in p5.js library. This function is used to reverse the p5.soundfile buffer source and the playback should be handled separately. Syntax: 
reverseBuffer()
Note: All the sound-related functions only work when the sound library is included in the head section of the index.html file. Parameters: This function does not accept any parameter. Below examples illustrate the p5.reverseBuffer() function in JavaScript: Example: javascript 
var sound; 
var rvrbffr;
    
function preload() { 
    
    // Initialize sound 
    sound = loadSound("pfivesound.mp3"); 
} 
    
function setup() { 
    
    // reversebuffering the source
    rvrbffr = sound.reverseBuffer();

    // Playing the preloaded sound 
    sound.play();
}
Online editor: https://editor.p5js.org/ Environment Setup: https://www.geeksforgeeks.org/javascript/p5-js-soundfile-object-installation-and-methods/ Supported Browsers: The browsers supported by p5.js reverseBuffer() function are listed below:
  • Google Chrome
  • Internet Explorer
  • Firefox
  • Safari
  • Opera
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