p5.js | sampleRate() Function

Last Updated : 12 Jul, 2025

The sampleRate() function is an inbuilt function in p5.js library. This function is used to get the number of samples of loaded audio carried per second. The sample rate of audio measured by kHz or Hz, 1000Hz = 1kHz. This is not changeable and it depends on the operating system's sound card.

The sample rate for the CDs is 44100Hz
The sample rate for the DVDsis 48000Hz

Syntax:

sampleRate()

Note: All the sound-related functions only work when the sound library is included in the head section of the index.html file. Parameter: This function does not accept any parameter Return Value: This function return an integer that holds the samples per second of the played audio on the web. Below example illustrates the p5.samplerate() function in JavaScript: Example:

javascript

var sound; 
var spmlrt; 
 
function preload() { 
 
    // Initialize sound 
    sound = loadSound("pfivesound.mp3"); 
} 
 
function setup() { 
         

    // Playing the preloaded sound 
    sound.play(); 

    //Checking loaded or not 
    var spmlrt = sound.sampleRate(); 
    console.log(spmlrt); 
}