     public var avAudioNode: AVAudioNode
     /// Required property for AKNode containing all the node's connections
     public var connectionPoints = [AVAudioConnectionPoint]()
+    
+    private var input: AKNode?
         
     /// Delay time in seconds (Default: 1)
     public var time: NSTimeInterval = 1 {

            delayAU.lowPassCutoff = Float(lowPassCutoff)
            delayAU.wetDryMix = Float(dryWetMix)
    }
}

        }
    }
    
    /// Tells whether the node is processing (ie. started, playing, or active)
    public var isStarted = true
    
    /// Tells whether the node is processing (ie. started, playing, or active)
    public var isPlaying: Bool {
        return isStarted
    }
    
    /// Tells whether the node is not processing (ie. stopped or bypassed)
    public var isStopped: Bool {
        return !isStarted
    }
    
    /// Tells whether the node is not processing (ie. stopped or bypassed)
    public var isBypassed: Bool {
        return !isStarted
    }
    
    /// Initialize the delay node 
    ///
    /// - parameter input: Input audio AKNode to process
