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Play an audio file using jQuery when a button is clicked

I am trying to play an audio file when I click the button, but it's not working, my html code is:

<html>         <body>         <div id="container">             <button id="play">                 Play Music             </button>         </div>     </body> </html> 

my JavaScript is :

$('document').ready(function () {     $('#play').click(function () {         var audio = {};         audio["walk"] = new Audio();         audio["walk"].src = "http://www.rangde.org/static/bell-ring-01.mp3"         audio["walk"].addEventListener('load', function () {             audio["walk"].play();         });     }); });    

I have created a Fiddle for that too.

like image 960
Suresh Pattu Avatar asked Dec 13 '11 13:12

Suresh Pattu


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2 Answers

Which approach?

You can play audio with <audio> tag or <object> or <embed>. Lazy loading(load when you need it) the sound is the best approach if its size is small. You can create the audio element dynamically, when its loaded you can start it with .play() and pause it with .pause().

Things we used

We will use canplay event to detect our file is ready to be played.

There is no .stop() function for audio elements. We can only pause them. And when we want to start from the beginning of the audio file we change its .currentTime. We will use this line in our example audioElement.currentTime = 0;. To achieve .stop() function we first pause the file then reset its time.

We may want to know the length of the audio file and the current playing time. We already learnt .currentTimeabove, to learn its length we use .duration.

Example Guide

  1. When document is ready we created an audio element dynamically
  2. We set its source with the audio we want to play.
  3. We used 'ended' event to start file again.

When the currentTime is equal to its duration audio file will stop playing. Whenever you use play(), it will start from the beginning.

  1. We used timeupdate event to update current time whenever audio .currentTime changes.
  2. We used canplay event to update information when file is ready to be played.
  3. We created buttons to play, pause, restart.

$(document).ready(function() {      var audioElement = document.createElement('audio');      audioElement.setAttribute('src', 'http://www.soundjay.com/misc/sounds/bell-ringing-01.mp3');            audioElement.addEventListener('ended', function() {          this.play();      }, false);            audioElement.addEventListener("canplay",function(){          $("#length").text("Duration:" + audioElement.duration + " seconds");          $("#source").text("Source:" + audioElement.src);          $("#status").text("Status: Ready to play").css("color","green");      });            audioElement.addEventListener("timeupdate",function(){          $("#currentTime").text("Current second:" + audioElement.currentTime);      });            $('#play').click(function() {          audioElement.play();          $("#status").text("Status: Playing");      });            $('#pause').click(function() {          audioElement.pause();          $("#status").text("Status: Paused");      });            $('#restart').click(function() {          audioElement.currentTime = 0;      });  });
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>  <body>      <h2>Sound Information</h2>      <div id="length">Duration:</div>      <div id="source">Source:</div>      <div id="status" style="color:red;">Status: Loading</div>      <hr>      <h2>Control Buttons</h2>      <button id="play">Play</button>      <button id="pause">Pause</button>      <button id="restart">Restart</button>      <hr>      <h2>Playing Information</h2>      <div id="currentTime">0</div>  </body>
like image 138
Ahmet Can Güven Avatar answered Oct 06 '22 16:10

Ahmet Can Güven


$("#myAudioElement")[0].play(); 

It doesn't work with $("#myAudioElement").play() like you would expect. The official reason is that incorporating it into jQuery would add a play() method to every single element, which would cause unnecessary overhead. So instead you have to refer to it by its position in the array of DOM elements that you're retrieving with $("#myAudioElement"), aka 0.

This quote is from a bug that was submitted about it, which was closed as "feature/wontfix":

To do that we'd need to add a jQuery method name for each DOM element method name. And of course that method would do nothing for non-media elements so it doesn't seem like it would be worth the extra bytes it would take.

like image 45
felwithe Avatar answered Oct 06 '22 16:10

felwithe