How to read audio file from external storage on Android into an AudioClip?

Target Platforms Mobile
1

I have written a wav file into the external storage of the Android device with my unity app using:

string fullPath = Application.persistentDataPath + "/test.wav";

I know the file was created and I can find it on my device using the folder browser on my phone.
The issue is that I cannot find a way to load the file from the external storage into an AudioClip, and hence I am unable to play it.

My attempt to load the file into an AudioClip:

    IEnumerator playClip(string path)
    {

        if (debugText!=null)
            debugText.text = "playClip";
        var audioLoader = new WWW("file://" + path);
        while( !audioLoader.isDone )
            yield return null;

        AudioClip clip1 = audioLoader.GetAudioClip(false, false);
        if (debugText!=null)
            debugText.text = audioLoader==null?"www null":"getClip";
        //        clip1.LoadAudioData();
        while(clip1.loadState!=AudioDataLoadState.Loaded){
            if (debugText!=null)
                debugText.text = "state: "+clip1.loadState;
            if (clip1.loadState==AudioDataLoadState.Failed)
            {
                yield break;
            }
            yield return null;
        }
        if (debugText!=null)
            debugText.text = "loaded "+clip1.loadState;
    }

However, I am always stuck with the debug Text showing “state: unloaded”.
So the AudioClip didn’t load.

Is it possible that AudioClip cannot load wav files on Android?(eventhough my Android can play the wav file)
Should I just use ogg files?

Not sure what else is the issue…

Thanks

1 Like
2

I’m having this same issue, did you ever get it figured out?

Edit:
My problem was the fact that my file wasn’t downloading fully from my server. Probably different. XD

3

Try to explicitly pass audio type to WWW.GetAudioClip().
And also check logcat for errors, I think we should print something there for unsupported audio format.

2 Likes