AudioDecoder: configure() method

Limited availability

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

Secure context: This feature is available only in secure contexts (HTTPS), in some or all supporting browsers.

Note: This feature is available in Dedicated Web Workers.

Experimental: This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

The configure() method of the AudioDecoder interface enqueues a control message to configure the audio decoder for decoding chunks.

Syntax

js
configure(config)

Parameters

config

A dictionary object containing the following members:

codec

A string containing a valid codec string. See "codecs" parameter for details on codec string construction.

sampleRate

An integer representing the number of frame samples per second.

numberOfChannels

An integer representing the number of audio channels.

description Optional

An ArrayBuffer, a TypedArray, or a DataView containing a sequence of codec specific bytes, commonly known as extradata.

Note: The registrations in the WebCodecs Codec Registry link to a specification detailing whether and how to populate the optional description member.

Return value

None (undefined).

Exceptions

TypeError

Thrown if the provided config is invalid.

InvalidStateError DOMException

Thrown if the state is "closed".

NotSupportedError DOMException

Thrown if the provided config is valid but the user agent cannot provide a codec that can decode this profile.

Examples

The following example configures the audioDecoder with the opus codec.

js
audioDecoder.configure({
  codec: "opus",
  sampleRate: 44100,
  numberOfChannels: 2,
});

Specifications

Specification
WebCodecs
# dom-audiodecoder-configure

Browser compatibility

BCD tables only load in the browser