diff --git a/addon/Drums/vl1-Hbeep.wav b/addon/Drums/vl1-Hbeep.wav
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diff --git a/addon/Drums/vl1-Lbeep.wav b/addon/Drums/vl1-Lbeep.wav
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index 0000000..014dde3
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diff --git a/addon/Drums/wav2c.sh b/addon/Drums/wav2c.sh
new file mode 100644
index 0000000..f7f647f
--- /dev/null
+++ b/addon/Drums/wav2c.sh
@@ -0,0 +1,250 @@
+#!/bin/bash
+#
+# Converter for WAV to C Header
+# Used for MicroDexed sampler
+#
+# (c) 2021 Holger Wirtz
+#
+
+SOX=`which sox`
+XXD=`which xxd`
+TMP="/Volumes/DATA/temp/dexed"
+AUDIO_BLOCK_SIZE=128
+DRUMSET_H="drumset.h"
+DRUMS_H="drums.h"
+
+function cleanexit()
+{
+	#rm -rf "${TMP}"
+	echo -n ""
+}
+
+trap cleanexit EXIT
+
+if [ -z "${SOX}" ]
+then
+	echo "Cannot find 'sox' in your PATH." >&2
+	exit 100
+fi
+
+if [ -z "${XXD}" ]
+then
+	echo "Cannot find 'xxd' in your PATH." >&2
+	exit 101
+fi
+
+POSITIONAL=()
+while [[ $# -gt 0 ]]; do
+  key="$1"
+
+  case $key in
+    -c|--config)
+      CONFIG="$2"
+      shift # past argument
+      shift # past value
+      ;;
+    -w|--wavs)
+      WAV_DIR="/Users/nexus/Desktop/dexedDevelopment/samples_dexed"
+      shift # past argument
+      shift # past value
+      ;;
+#    -t|--test)
+#      TEST="true"
+#      shift # past argument
+#      ;;
+    *)    # unknown option
+      POSITIONAL+=("$1") # save it in an array for later
+      shift # past argument
+      ;;
+  esac
+done
+
+if [ ! -f "${CONFIG}" ]
+then
+	echo "Cannot find configuration file." >&2
+	exit 200
+fi
+
+if [ ! -d "${WAV_DIR}" ]
+then
+	echo "Cannot find folder for WAV files." >&2
+	exit 201
+fi
+
+if (( `ls "${WAV_DIR}" | wc -l` == 0 ))
+then
+	echo "Cannot find any file in ${WAV_DIR}." >&2
+	exit 202
+fi
+
+mkdir -p "${TMP}"
+echo "#pragma once" >"${DRUMSET_H}"
+rm -f "${DRUMS_H}"
+cat >> "${DRUMS_H}" << EOF
+/*
+   MicroDexed
+
+   MicroDexed is a port of the Dexed sound engine
+   Dexed ist heavily based on https://github.com/google/music-synthesizer-for-an
+droid
+
+   (c)2018-2021 H. Wirtz <wirtz@parasitstudio.de>
+
+   Permission is hereby granted, free of charge, to any person obtaining a copy
+   of this software and associated documentation files (the "Software"), to deal
+   in the Software without restriction, including without limitation the rights
+   to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+   copies of the Software, and to permit persons to whom the Software is
+   furnished to do so, subject to the following conditions:
+
+   The above copyright notice and this permission notice shall be included in
+   all copies or substantial portions of the Software.
+
+   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+   IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+   FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+   AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+   THE SOFTWARE.
+*/
+
+#include <Arduino.h>
+#include "config.h"
+#include "drumset.h"
+
+#ifndef _DRUMS_H
+#define _DRUMS_H
+
+typedef struct drum_config_s {
+  uint8_t drum_class; // Type of drum
+  uint8_t midinote;   // Triggered by note
+  char name[DRUM_NAME_LEN];
+  const uint8_t* drum_data;
+  char shortname[2];  // 1 char name for sequencer
+  uint32_t len;       // number of elements in drum_data
+  float32_t pitch;    //
+  float32_t pan;      // Panorama (-1.0 - +1.0)
+  float32_t vol_max;  // max. Volume (0.0 - 1.0)
+  float32_t vol_min;  // min. Volume (0.0 - 1.0, should be <= vol_max)
+  float32_t reverb_send; // how much signal to send to the reverb (0.0 - 1.0)
+} drum_config_t;
+
+enum {DRUM_NONE, DRUM_BASS, DRUM_SNARE, DRUM_HIHAT, DRUM_HANDCLAP, DRUM_RIDE, DRUM_CHRASH, DRUM_LOWTOM, DRUM_MIDTOM, DRUM_HIGHTOM, DRUM_PERCUSSION};
+
+// DEFAULT MIDI CHANNEL FOR SAMPLEDRUMS
+uint8_t drum_midi_channel = 10;
+
+drum_config_t drum_config[NUM_DRUMSET_CONFIG] =
+{
+EOF
+
+declare -a converted_files
+
+while IFS= read -r l
+do
+	declare -a sample
+	
+	if [[ "${l:0:1}" == "#" ]]
+	then
+		continue
+	fi
+	IFS=',' read -ra samplecfg <<< "${l}"
+
+	sample['class']=`echo "${samplecfg[0]}" | xargs`
+	sample['midinote']=`echo "${samplecfg[1]}" | xargs`
+	sample['name']=`echo "${samplecfg[2]}" | xargs`
+	sample['data_name']="${sample['name']}"
+	sample['shortname']=`echo "${samplecfg[3]}" | xargs`
+	sample['pitch']=`echo "${samplecfg[4]}" | xargs`
+	sample['pan']=`echo "${samplecfg[5]}" | xargs`
+	sample['vol_max']=`echo "${samplecfg[6]}" | xargs`
+	sample['vol_min']=`echo "${samplecfg[7]}" | xargs`
+	sample['reverb_send']=`echo "${samplecfg[8]}" | xargs`
+	sample['filename']=`echo "${samplecfg[9]}" | xargs`
+
+	if [ -f "${WAV_DIR}/${sample['filename']}" ]
+	then
+		file "${WAV_DIR}/${sample['filename']}" | grep -i -q "WAVEfmt"
+		if [ "${?}" == 0 ]
+		then
+			# Generate drumset.h
+
+			if [ -z "${converted_files[${sample['filename']}]}" ]
+			then
+				basename=`echo "${sample['filename']}" | cut -d'.' -f1`
+        			sox "/Users/nexus/Desktop/dexedDevelopment/samples_dexed/${sample['filename']}" -c 1 -b 16 -L "${TMP}/${basename}.raw"
+				xxd -i "${TMP}/${basename}.raw" > "${TMP}/${basename}.h"
+				sample['len']=`grep "^unsigned int" "${TMP}/${basename}.h" | cut -d"=" -f2 | sed 's/\s*\([0-9]\+\);/\1/'`
+				fill_mod=`expr "${sample['len']}" % "${AUDIO_BLOCK_SIZE}"`
+				fill=`expr "${AUDIO_BLOCK_SIZE}" - "${fill_mod}"`
+				sample['len']=`expr "${sample['len']}" + "${fill}"`
+				sample['len']=`expr "${sample['len']}" / 2`
+
+				echo "// Converted from ${sample['filename']}, length = ${sample['len']} bytes" >> "${DRUMSET_H}"
+				echo "PROGMEM const uint8_t ${sample['name']}[] = {" >> "${DRUMSET_H}"
+				grep "^ " "${TMP}/${basename}.h" >> "${DRUMSET_H}"
+
+				if (( "${fill}" > 0 ))
+				then
+					echo -n "," >> "${DRUMSET_H}"
+					fill_counter=0
+					for i in $(seq 1 "${fill}")
+					do
+						echo -n "0x00" >> "${DRUMSET_H}"
+						let fill_counter+=1
+						if (( "${fill_counter}" >= 8 ))
+						then
+							echo "," >> "${DRUMSET_H}"
+							fill_counter=0
+						else
+							echo -n ", " >> "${DRUMSET_H}"
+						fi
+					done
+				fi
+				echo "};" >> "${DRUMSET_H}"
+
+				converted_files["${sample['filename']}"]="${sample['name']},${sample['len']}"
+			else
+				sample['data_name']=`echo ${converted_files[${sample['filename']}]} | cut -d"," -f1`
+				sample['len']=`echo ${converted_files[${sample['filename']}]} | cut -d"," -f2`
+			fi	
+
+			# Generate drums.h
+			cat >> "${DRUMS_H}" << EOF
+  {
+    ${sample[class]},
+    ${sample[midinote]},
+    "${sample[name]}",
+    ${sample[data_name]},
+    "${sample[shortname]}",
+    ${sample[len]},
+    ${sample[pitch]},
+    ${sample[pan]},
+    ${sample[vol_max]},
+    ${sample[vol_min]},
+    ${sample[reverb_send]}
+  },
+EOF
+		fi
+	else
+		echo "File \'${WAV_DIR}/${sample['filename']}\' does not exits." >&2
+	fi
+done < "${CONFIG}"
+
+cat >> "${DRUMS_H}" << EOF
+  {
+    DRUM_NONE,
+    0,
+    "EMPTY",
+    NULL,
+    "-",
+    0,
+    0.0,
+    0.0,
+    0.0,
+    0.0,
+    0.0
+  }
+};
+
+#endif
+EOF
diff --git a/addon/Drums/wav2sketch b/addon/Drums/wav2sketch
new file mode 100644
index 0000000..61d1e3e
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