HTML DOM Audio duration Property

# Audio duration Property

Audio Object

## Example

Get the length of an audio:

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

The result of x could be:

1.515102
Try it yourself »

## Definition and Usage

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

Note: Different browsers return different values. In the example above, Opera 18+ and Chrome returns "1.515102". Firefox returns "1.509298". Internet Explorer returns "1.5491875". Safari returns "1.5149999856948853", while Opera 12 returns "1.5092970520000002".

Note: This property is read-only.

## Browser Support

The duration property is supported in all major browsers.

Note: This property is not supported in Internet Explorer 8 and earlier versions.

## Syntax

audioObject.duration

## Technical Details

Return Value: | A Number, representing the length of the audio, in seconds. If no audio is set, "NaN" (Not-a-Number) is returned. If the audio is streamed and has no predefined length, "Inf" (Infinity) is returned.

Audio Object

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