     setReverbWetDry(0)
     setReverbPresets(4)
     
+    setBrightnessMin(0.15)
+    
     mixer = AVAudioMixerNode()
     
     engine.attachNode(eq)

    let saturation = CGFloat(UD.floatForKey(UD_KEY_EFFECT_COLOR_SATURATION))
    effectColor = UIColor(hue: hue, saturation: saturation, brightness: 1.0, alpha: 1.0)
    colorView2.backgroundColor = effectColor
    
    let r = NSString(format: "%03d", Int(effectColor.getRed()))
    let g = NSString(format: "%03d", Int(effectColor.getGreen()))
    let b = NSString(format: "%03d", Int(effectColor.getBlue()))
    
    uart("e:\(r).\(g).\(b);")
  }
  

    let r = NSString(format: "%03d", Int(instrumentColor.getRed()))
    let g = NSString(format: "%03d", Int(instrumentColor.getGreen()))
    let b = NSString(format: "%03d", Int(instrumentColor.getBlue()))
    uart("i:\(r).\(g).\(b);")
  }
  func updateEffectColor() {
