W3cubDocs

/Web APIs

AudioData: format property

Limited availability

This feature is not Baseline because it does not work in some of the most widely-used browsers.

Note: This feature is available in Dedicated Web Workers.

The format read-only property of the AudioData interface returns the sample format of the AudioData object.

Value

A string. One of:

"u8"

8-bit unsigned integer samples, in an interleaved format.

"s16"

16-bit signed integer samples, in an interleaved format.

"s32"

32-bit signed integer samples, in an interleaved format.

"f32"

32-bit float samples, in an interleaved format.

"u8-planar"

8-bit unsigned integer samples, in a planar format.

"s16-planar"

16-bit signed integer samples, in a planar format.

"s32-planar"

32-bit signed integer samples, in a planar format.

"f32-planar"

32-bit float samples, in a planar format.

Examples

The below example prints the value of format to the console.

console.log(AudioData.format);

Specifications

Browser compatibility

Desktop Mobile
Chrome Edge Firefox Opera Safari Chrome Android Firefox for Android Opera Android Safari on IOS Samsung Internet WebView Android WebView on iOS
format 94 94 130 80 26 94 No 66 26 17.0 94 26

© 2005–2025 MDN contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/AudioData/format