Myujth

It seems like I can't init my custom AKNode properly, I've also tried to put all the code inside viewDidLoad (and not using classes) but the behaviour is identical.

Here's my class:

class customNode:AKNode,AKToggleable 


 var isStarted: Bool

 let sine = AKTable(.sine)
 var toneGenerator: AKOscillator
 var adsr: AKAmplitudeEnvelope


 override init()
 isStarted = false

 toneGenerator = AKOscillator(waveform: sine)
 toneGenerator.frequency = 440
 toneGenerator.amplitude = 0.5

 adsr = AKAmplitudeEnvelope(toneGenerator)



 super.init(avAudioNode: adsr.outputNode)

 self.setup()
 



 func setup()
 toneGenerator.detuningOffset = 0
 toneGenerator.detuningMultiplier = 0
 toneGenerator.rampDuration = 0
 adsr.attackDuration = 0.001
 adsr.decayDuration = 0.3
 adsr.sustainLevel = 0
 adsr.releaseDuration = 0.03
 adsr.rampDuration = 0
 

 func setF(_ val:Double)
 self.toneGenerator.frequency = val
 

 func setA(_ val:Double)
 self.toneGenerator.amplitude = val
 

 func start() 
 toneGenerator.start()
 adsr.start()
 isStarted = true
 

 func stop() 
 adsr.stop()
 isStarted = false
 

In my ViewController, I declare:

let myNode = customNode()

and add it to AudioKit output inside viewDidLoad()

AudioKit.output = myNode

My viewController conforms to AKMIDIListener protocol, so I can trigger myNode with midi keyboard inputs.

Everything works, but I have infinite sustain on notes, and I guess the other values of adsr are off as well.

If I print myNode.adsr.sustainLevel it outputs 0.0.

If I call myNode.setup() after is has been added to AudioKit.output or AudioKit.start() nothing changes.
So I tried to add some sliders to my view to change adsr params while playing and it suddenly worked.

@IBAction func s_change(_ sender: NSSlider) 
 myNode.adsr.sustainLevel = sender.doubleValue
 

BTW, myNode.adsr.sustainLevel still prints 0.0

The same happened for the other adsr values: if I print them the output is the value set in init(), but the sound isn't affected by those parameters. If I change them with sliders the sound is affected but not the printed values...

So, how can I set correct adsr parameters on init() in my customNode class?

Mac OS High Sierra

Swift 4.2

AudioKit 4.5.2 / 4.5.3 / 4.5.4 (tried all of them)