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

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.

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

console.log(AudioData.format);