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Audio Helpers

Most audio operations are done through SOM calls, but Messenger.Audio.Audio exposes two helpers for reading audio state.

audioDuration​

Use audioDuration to get the duration of a loaded audio resource.

import Messenger.Audio.Audio exposing (audioDuration)

audioDuration runtime "bg"

Its type is:

audioDuration : Runtime -> String -> Maybe Duration

The string is the audio resource name from Resources.elm. The result is Nothing if the audio has not been loaded or does not exist.

newAudioChannel​

Use newAudioChannel to find a fresh channel number.

import Messenger.Audio.Audio exposing (newAudioChannel)

channel =
    newAudioChannel runtime

Its type is:

newAudioChannel : Runtime -> Int

This is useful when a component wants to play audio without coordinating a fixed channel id with the rest of the game.