detect-audio-autoplay

Detects whether the browser can auto-play audio. This tries to load a dummy silent MP3 or OGG datauri as an <audio> source, and waits for a 'play' event.

For accurate results, you should call this early in your program, before any user gestures.

This module also contains a different mechanism for detecting Buffer source autoplay, see below

Install

npm install detect-audio-autoplay --save

Example

var autoplay = require('detect-audio-autoplay')

autoplay(function (supported) {
  if (supported) {
    console.log("We can autoplay!")
  } else {
    console.log("Nope, can't autoplay.")
  }
})

Usage

detect(cb, [defaultTimeout])

Detects whether an <audio> element can autoplay in the current browser. The callback is called with a boolean, true if supported, false otherwise.

If the dummy MP3 or OGG does not play after defaultTimeout (default 300ms), we assume the device cannot autoplay it.

Buffered Autoplay

When using audio through WebAudio on mobile devices, you may need to use a Buffer instead of a MediaElement source. For these devices, we should be using a different detection mechanism.

For example, Android Chrome v48 (tested on Samsung Galaxy S6) does not autoplay <audio> elements, but it does autoplay Buffer sources. This is useful in situations such as WebVR + GearVR demos.

Use the following entry point:

var detectBuffer = require('detect-audio-autoplay/buffer')

Usage:

detectBuffer(cb, [audioContext])

Detects whether a dummy MP3 or OGG can be loaded and decoded using the audioContext (defaults to a new audio context which will get cleaned up).

License

MIT, see LICENSE.md for details.