Dynamically loading MP3 Files during runtime.

Unity Engine
,
1

Hello,

I am experimenting with making a rhythm game in unity. I want to make it so you can drag any mp3 file into Applications.persistantdatapath, or really any fixed non-changing directory would work, and then the player would type in a file name - for example " Test.mp3" - and it would read/load the file at that path with that name, and play it through an audio source. This would allow for me to pre package the game with 5-10 songs, while letting players add their own quickly and simply. for the life of me I cannot figure out how to read an MP3 file from there.
Does anybody know how to do this?

2

You can get an AudioClip from a file on your system using WebRequest:

public void PlayFile(string fileName)
{
    string path = Path.Combine(Application.persistentDataPath, fileName);
    string uri = "file://" + path;

    StartCoroutine(LoadAndPlay(uri));
}

IEnumerator LoadAndPlay(string uri)
{
    using (UnityWebRequest www = UnityWebRequestMultimedia.GetAudioClip(uri, AudioType.MPEG))
    {
        yield return www.SendWebRequest();

        if (www.result == UnityWebRequest.Result.ConnectionError || www.result == UnityWebRequest.Result.ProtocolError)
        {
            Debug.LogError("Error: " + www.error);
        }
        else
        {
            AudioClip clip = DownloadHandlerAudioClip.GetContent(www);
            audioSource.clip = clip;
            audioSource.Play();
        }
    }
}