diff --git a/MicroDexed.ino b/MicroDexed.ino
index 8c35187..3b90e59 100644
--- a/MicroDexed.ino
+++ b/MicroDexed.ino
@@ -2,7 +2,8 @@
    MicroDexed
 
    MicroDexed is a port of the Dexed sound engine
-   (https://github.com/asb2m10/dexed) for the Teensy-3.5/3.6 with audio shield. Dexed ist heavily based on https://github.com/google/music-synthesizer-for-android
+   (https://github.com/asb2m10/dexed) for the Teensy-3.5/3.6 with audio shield.
+   Dexed ist heavily based on https://github.com/google/music-synthesizer-for-android
 
    (c)2018 H. Wirtz <wirtz@parasitstudio.de>
 
@@ -54,11 +55,13 @@ Bounce but1 = Bounce(BUT1_PIN, 10);  // 10 ms debounce
 AudioPlayQueue           queue1;         //xy=708,349
 AudioAmplifier           amp1;           //xy=904,314
 AudioAmplifier           amp2;           //xy=909,373
+AudioAnalyzePeak         peak1;          //xy=909,436
 AudioOutputI2S           i2s1;           //xy=1055,343
 AudioConnection          patchCord1(queue1, amp1);
 AudioConnection          patchCord2(queue1, amp2);
-AudioConnection          patchCord3(amp1, 0, i2s1, 0);
-AudioConnection          patchCord4(amp2, 0, i2s1, 1);
+AudioConnection          patchCord3(queue1, peak1);
+AudioConnection          patchCord4(amp1, 0, i2s1, 0);
+AudioConnection          patchCord5(amp2, 0, i2s1, 1);
 AudioControlSGTL5000     sgtl5000_1;     //xy=1055,398
 // GUItool: end automatically generated code
 
@@ -69,6 +72,7 @@ uint8_t bank = EEPROM.read(EEPROM_BANK_ADDR);
 uint8_t midi_channel = DEFAULT_MIDI_CHANNEL;
 uint32_t xrun = 0;
 uint32_t overload = 0;
+uint32_t peak = 0;
 uint16_t render_time_max = 0;
 
 #ifdef MASTER_KEY_MIDI
@@ -222,6 +226,11 @@ void loop()
       xrun++;
     if (t2 > render_time_max)
       render_time_max = t2;
+    if (peak1.available())
+    {
+      if (peak1.read() > 0.99)
+        peak++;
+    }
     queue1.playBuffer();
   }
 }
@@ -602,10 +611,12 @@ void show_cpu_and_mem_usage(void)
   Serial.print(xrun, DEC);
   Serial.print(F("   OVERLOAD: "));
   Serial.print(overload, DEC);
+  Serial.print(F("   PEAK: "));
+  Serial.print(peak, DEC);
   Serial.println();
   AudioProcessorUsageMaxReset();
   AudioMemoryUsageMaxReset();
-  render_time_max=0;
+  render_time_max = 0;
 }
 #endif
 
diff --git a/dexed.cpp b/dexed.cpp
index e611e49..54a4782 100644
--- a/dexed.cpp
+++ b/dexed.cpp
@@ -2,7 +2,8 @@
    MicroDexed
 
    MicroDexed is a port of the Dexed sound engine
-   (https://github.com/asb2m10/dexed) for the Teensy-3.5/3.6 with audio shield. Dexed ist heavily based on https://github.com/google/music-synthesizer-for-android
+   (https://github.com/asb2m10/dexed) for the Teensy-3.5/3.6 with audio shield.
+   Dexed ist heavily based on https://github.com/google/music-synthesizer-for-android
 
    (c)2018 H. Wirtz <wirtz@parasitstudio.de>
 
@@ -38,16 +39,6 @@
 #include <Audio.h>
 #endif
 
-extern uint8_t bank;
-extern uint32_t overload;
-extern bool load_sysex(uint8_t bank, uint8_t voice_number);
-extern AudioControlSGTL5000 sgtl5000_1;
-extern AudioAmplifier amp1;
-extern AudioAmplifier amp2;
-extern AudioEffectFreeverbStereo freeverbs1;
-extern AudioAmplifier amp1;
-extern AudioAmplifier amp2;
-
 Dexed::Dexed(int rate)
 {
   uint8_t i;
diff --git a/dexed.h b/dexed.h
index 6419d2b..914e80c 100644
--- a/dexed.h
+++ b/dexed.h
@@ -2,7 +2,8 @@
    MicroDexed
 
    MicroDexed is a port of the Dexed sound engine
-   (https://github.com/asb2m10/dexed) for the Teensy-3.5/3.6 with audio shield. Dexed ist heavily based on https://github.com/google/music-synthesizer-for-android
+   (https://github.com/asb2m10/dexed) for the Teensy-3.5/3.6 with audio shield.
+   Dexed ist heavily based on https://github.com/google/music-synthesizer-for-android
 
    (c)2018 H. Wirtz <wirtz@parasitstudio.de>
 
@@ -33,6 +34,14 @@
 #include "fm_core.h"
 #include "EngineMkI.h"
 #include "EngineOpl.h"
+#include <Audio.h>
+
+extern uint8_t bank;
+extern uint32_t overload;
+extern bool load_sysex(uint8_t bank, uint8_t voice_number);
+extern AudioControlSGTL5000 sgtl5000_1;
+extern AudioAmplifier amp1;
+extern AudioAmplifier amp2;
 
 struct ProcessorVoice {
   uint8_t midi_note;
diff --git a/dexed_sysex.cpp b/dexed_sysex.cpp
index 32e1564..446d6d5 100644
--- a/dexed_sysex.cpp
+++ b/dexed_sysex.cpp
@@ -2,7 +2,8 @@
    MicroDexed
 
    MicroDexed is a port of the Dexed sound engine
-   (https://github.com/asb2m10/dexed) for the Teensy-3.5/3.6 with audio shield. Dexed ist heavily based on https://github.com/google/music-synthesizer-for-android
+   (https://github.com/asb2m10/dexed) for the Teensy-3.5/3.6 with audio shield.
+   Dexed ist heavily based on https://github.com/google/music-synthesizer-for-android
 
    (c)2018 H. Wirtz <wirtz@parasitstudio.de>
 
@@ -30,8 +31,6 @@
 #include "dexed_sysex.h"
 #include "config.h"
 
-extern uint16_t render_time_max;
-
 bool load_sysex(uint8_t bank, uint8_t voice_number)
 {
   File root;
diff --git a/dexed_sysex.h b/dexed_sysex.h
index 70f460e..5785ed0 100644
--- a/dexed_sysex.h
+++ b/dexed_sysex.h
@@ -2,7 +2,8 @@
    MicroDexed
 
    MicroDexed is a port of the Dexed sound engine
-   (https://github.com/asb2m10/dexed) for the Teensy-3.5/3.6 with audio shield. Dexed ist heavily based on https://github.com/google/music-synthesizer-for-android
+   (https://github.com/asb2m10/dexed) for the Teensy-3.5/3.6 with audio shield.
+   Dexed ist heavily based on https://github.com/google/music-synthesizer-for-android
 
    (c)2018 H. Wirtz <wirtz@parasitstudio.de>
 
@@ -24,6 +25,7 @@
 
 extern bool sd_card_available;
 extern Dexed* dexed;
+extern uint16_t render_time_max;
 
 bool load_sysex(uint8_t bank, uint8_t voice_number);
 bool get_sysex_voice(char* dir, File sysex, uint8_t voice_number, uint8_t* data);