Audio duration attribute

HTML DOM Audio Object

Definition and Usage

duration The property returns the length of the audio, in seconds.

Different browsers return different values. In the following example:

  • Opera 18+ and Chrome return "1.515102"
  • Firefox returns "1.509298"
  • Internet Explorer returns "1.5491875"
  • Safari returns "1.5149999856948853"
  • Opera 12 returns "1.5092970520000002"

Note:This property is read-only.

Example

Get the length of the audio:

var x = document.getElementById("myAudio").duration;

Try It Yourself

Syntax

audioObject.duration

Technical Details

Return value:

A number representing the length of the audio in seconds.

If the audio is not set, it returns NaN" (Not-a-Number).

If the audio is streamed and does not have a predefined length, it returns "Inf" (Infinity).

Browser Support

Chrome Edge Firefox Safari Opera
Chrome Edge Firefox Safari Opera
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HTML DOM Audio Object