         connect(audio)
 
         let mono = AKMix(input1: audio.leftOutput, input2: audio.rightOutput, balance: 0.5.ak)
-        connect(mono)
 
         auxilliaryOutput = AKAudio.globalParameter()
         assignOutput(auxilliaryOutput, to:mono)

        )

        let mix = AKMix(input1: audioSource, input2: delay, balance: 0.5.ak)
        connect(mix)

        connect(AKAudioOutput(audioSource:mix))

        resetParameter(audioSource)
    }

    init(audioSource: AKAudio) {
        super.init()

        let feedbackLine = AKLine(
            firstPoint: 0.ak,
            secondPoint: 1.ak,
            durationBetweenPoints: testDuration.ak
        )

        let delay = AKDelay(input: audioSource, delayTime: 0.1.ak)
        delay.feedback = feedbackLine
