     let offsetPercentage = pitch.closestOffset.percentage
     let absOffsetPercentage = abs(offsetPercentage)
 
-    NSLog("pitch : \(pitch.note.string) - percentage : \(offsetPercentage)")
+    print("pitch : \(pitch.note.string) - percentage : \(offsetPercentage)")
 
     guard absOffsetPercentage > 1.0 else {
       return

    return label
    }()

  lazy var offsetLabel: UILabel = { [unowned self] in
    let label = UILabel()
    label.font = UIFont.systemFont(ofSize: 28)
    label.textColor = UIColor.white

    offsetLabel.isHidden = !pitchEngine.active
  }

  // MARK: - Layout

  func setupLayout() {
    let totalSize = UIScreen.main.bounds
