     }
     
     /// Initialize the player
+    ///
+    /// - parameter file: Path to the audio file
+    ///
     public init(_ file: String) {
         let url = NSURL.fileURLWithPath(file, isDirectory: false)
         let audioFile = try! AVAudioFile(forReading: url)

    /// Boolean indicating whether or not to loop the playback
    public var looping = false
    
    /** Output Volume (Default 1) */
    public var volume: Double = 1.0 {
        didSet {
            if volume < 0 {

        }
    }
    
    /// Pan (Default Center = 0)
    public var pan: Double = 0.0 {
        didSet {
            if pan < -1 {
