diff --git a/source/PA_Calculator.pro b/source/PA_Calculator.pro
index ee2d0a9..d253dbc 100644
--- a/source/PA_Calculator.pro
+++ b/source/PA_Calculator.pro
@@ -1,4 +1,4 @@
-QT       += core gui
+QT       += core gui multimedia testlib
 
 greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
 
@@ -10,6 +10,7 @@ CONFIG+=sdk_no_version_check
 
 SOURCES += \
     about.cpp \
+    analyzer.cpp \
     camp.cpp \
     campmode.cpp \
     cdac.cpp \
@@ -20,6 +21,7 @@ SOURCES += \
 
 HEADERS += \
     about.h \
+    analyzer.h \
     camp.h \
     campmode.h \
     cdac.h \
@@ -29,6 +31,7 @@ HEADERS += \
 
 FORMS += \
     about.ui \
+    analyzer.ui \
     library.ui \
     mainwindow.ui
 
@@ -50,7 +53,7 @@ else: unix:!android: target.path = /opt/$${TARGET}/bin
 RESOURCES += \
     resources.qrc
 
-VERSION=1.0.0
+VERSION=1.1.0
 QMAKE_TARGET_PRODUCT = "PA-Calculator"
 QMAKE_TARGET_COMPANY = "Alexander Diamadis"
 QMAKE_TARGET_COPYRIGHT = "Copyright (c) 2021 by Alexander Diamadis (alex@dkm-tech.de)"
diff --git a/source/analyzer.cpp b/source/analyzer.cpp
new file mode 100644
index 0000000..c22bed7
--- /dev/null
+++ b/source/analyzer.cpp
@@ -0,0 +1,39 @@
+#include "analyzer.h"
+#include "ui_analyzer.h"
+#include "QFileDialog"
+#include <QStandardPaths>
+#include <QString>
+#include <QDirIterator>
+#include <QFileInfo>
+
+analyzer::analyzer(QWidget *parent) :
+    QDialog(parent),
+    ui(new Ui::analyzer)
+{
+    ui->setupUi(this);
+}
+
+analyzer::~analyzer()
+{
+    delete ui;
+}
+
+void analyzer::on_pushButton_clicked()
+{
+    QString folder=QFileDialog::getExistingDirectory(this,"Select the folder that is containing audio",QStandardPaths::writableLocation(QStandardPaths::DownloadLocation));
+    ui->lineEdit_path->setText(folder);
+}
+
+
+void analyzer::on_pushButton_calculate_clicked()
+{
+    QDirIterator it(ui->lineEdit_path->text(), QStringList() << "*.mp3", QDir::NoFilter, QDirIterator::Subdirectories);
+    //while (it.hasNext()) {
+    QFileInfo f(it.next());
+    CAudioSource src;
+
+    src.decode(f.absoluteFilePath());
+
+
+}
+
diff --git a/source/analyzer.h b/source/analyzer.h
new file mode 100644
index 0000000..43cc957
--- /dev/null
+++ b/source/analyzer.h
@@ -0,0 +1,29 @@
+#ifndef ANALYZER_H
+#define ANALYZER_H
+
+#include <QDialog>
+#include <QAudioDecoder>
+
+
+namespace Ui {
+class analyzer;
+}
+
+class analyzer : public QDialog
+{
+    Q_OBJECT
+
+public:
+    explicit analyzer(QWidget *parent = nullptr);
+    ~analyzer();
+
+private slots:
+    void on_pushButton_clicked();
+
+    void on_pushButton_calculate_clicked();
+
+private:
+    Ui::analyzer *ui;
+};
+
+#endif // ANALYZER_H
diff --git a/source/analyzer.ui b/source/analyzer.ui
new file mode 100644
index 0000000..af81e8f
--- /dev/null
+++ b/source/analyzer.ui
@@ -0,0 +1,107 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>analyzer</class>
+ <widget class="QDialog" name="analyzer">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>432</width>
+    <height>141</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Dialog</string>
+  </property>
+  <layout class="QHBoxLayout" name="horizontalLayout">
+   <item>
+    <layout class="QFormLayout" name="formLayout">
+     <item row="0" column="0">
+      <widget class="QLabel" name="label">
+       <property name="text">
+        <string>Folder containing Audio Files</string>
+       </property>
+      </widget>
+     </item>
+     <item row="0" column="1">
+      <widget class="QLineEdit" name="lineEdit_path">
+       <property name="sizePolicy">
+        <sizepolicy hsizetype="MinimumExpanding" vsizetype="Fixed">
+         <horstretch>0</horstretch>
+         <verstretch>0</verstretch>
+        </sizepolicy>
+       </property>
+       <property name="text">
+        <string>C:/Users/fsx12/Downloads/Zeugnisverleihung</string>
+       </property>
+      </widget>
+     </item>
+     <item row="1" column="0">
+      <spacer name="verticalSpacer">
+       <property name="orientation">
+        <enum>Qt::Vertical</enum>
+       </property>
+       <property name="sizeHint" stdset="0">
+        <size>
+         <width>20</width>
+         <height>40</height>
+        </size>
+       </property>
+      </spacer>
+     </item>
+     <item row="1" column="1">
+      <widget class="QPushButton" name="pushButton">
+       <property name="sizePolicy">
+        <sizepolicy hsizetype="Fixed" vsizetype="Fixed">
+         <horstretch>0</horstretch>
+         <verstretch>0</verstretch>
+        </sizepolicy>
+       </property>
+       <property name="text">
+        <string>Browse</string>
+       </property>
+      </widget>
+     </item>
+     <item row="2" column="0">
+      <widget class="QLabel" name="label_2">
+       <property name="layoutDirection">
+        <enum>Qt::LeftToRight</enum>
+       </property>
+       <property name="text">
+        <string>preferred Loudness</string>
+       </property>
+      </widget>
+     </item>
+     <item row="2" column="1">
+      <widget class="QDoubleSpinBox" name="doubleSpinBox_preferredLoudness">
+       <property name="suffix">
+        <string> dBFS</string>
+       </property>
+       <property name="decimals">
+        <number>1</number>
+       </property>
+       <property name="minimum">
+        <double>-100.000000000000000</double>
+       </property>
+       <property name="maximum">
+        <double>0.000000000000000</double>
+       </property>
+       <property name="value">
+        <double>-18.000000000000000</double>
+       </property>
+      </widget>
+     </item>
+     <item row="3" column="1">
+      <widget class="QPushButton" name="pushButton_calculate">
+       <property name="text">
+        <string>Calculate</string>
+       </property>
+      </widget>
+     </item>
+    </layout>
+   </item>
+  </layout>
+ </widget>
+ <resources/>
+ <connections/>
+</ui>
diff --git a/source/library.ui b/source/library.ui
index 1b26e9f..cf19a75 100644
--- a/source/library.ui
+++ b/source/library.ui
@@ -474,8 +474,8 @@
    <slot>accept()</slot>
    <hints>
     <hint type="sourcelabel">
-     <x>244</x>
-     <y>444</y>
+     <x>250</x>
+     <y>473</y>
     </hint>
     <hint type="destinationlabel">
      <x>157</x>
@@ -490,8 +490,8 @@
    <slot>reject()</slot>
    <hints>
     <hint type="sourcelabel">
-     <x>312</x>
-     <y>444</y>
+     <x>318</x>
+     <y>473</y>
     </hint>
     <hint type="destinationlabel">
      <x>286</x>
diff --git a/source/mainwindow.cpp b/source/mainwindow.cpp
index de6853e..ce28665 100644
--- a/source/mainwindow.cpp
+++ b/source/mainwindow.cpp
@@ -9,6 +9,7 @@
 #include <QDataStream>
 #include <QFileDialog>
 #include "about.h"
+#include "analyzer.h"
 
 MainWindow::MainWindow(QWidget *parent)
     : QMainWindow(parent)
@@ -29,6 +30,9 @@ MainWindow::MainWindow(QWidget *parent)
     refreshLibraryAmpModes();
     refreshLibrarySpeaker();
     refreshLibraryDacs();
+
+    analyzer analyzerWindow;
+    analyzerWindow.exec();
 }
 
 MainWindow::~MainWindow()
@@ -343,3 +347,10 @@ void MainWindow::on_actionAbout_triggered()
     aboutDialog.exec();
 }
 
+
+void MainWindow::on_actionOpen_Loudness_Analyzer_triggered()
+{
+    analyzer analyzerWindow;
+    analyzerWindow.exec();
+}
+
diff --git a/source/mainwindow.h b/source/mainwindow.h
index c5cbc7d..2311435 100644
--- a/source/mainwindow.h
+++ b/source/mainwindow.h
@@ -40,6 +40,8 @@ private slots:
 
     void on_actionAbout_triggered();
 
+    void on_actionOpen_Loudness_Analyzer_triggered();
+
 private:
     Ui::MainWindow *ui;
     cAmp* m_pCAmp;
diff --git a/source/mainwindow.ui b/source/mainwindow.ui
index 3106a04..d6a12bb 100644
--- a/source/mainwindow.ui
+++ b/source/mainwindow.ui
@@ -578,7 +578,6 @@
              <property name="font">
               <font>
                <pointsize>15</pointsize>
-               <weight>75</weight>
                <bold>true</bold>
               </font>
              </property>
@@ -696,7 +695,6 @@
              <property name="font">
               <font>
                <pointsize>15</pointsize>
-               <weight>75</weight>
                <bold>true</bold>
               </font>
              </property>
@@ -771,7 +769,7 @@
      <x>0</x>
      <y>0</y>
      <width>1242</width>
-     <height>21</height>
+     <height>17</height>
     </rect>
    </property>
    <widget class="QMenu" name="menuLibrary">
@@ -788,8 +786,15 @@
     </property>
     <addaction name="actionAbout"/>
    </widget>
+   <widget class="QMenu" name="menuLoudness_Analyzer">
+    <property name="title">
+     <string>Tools</string>
+    </property>
+    <addaction name="actionOpen_Loudness_Analyzer"/>
+   </widget>
    <addaction name="menuPA_Calculator"/>
    <addaction name="menuLibrary"/>
+   <addaction name="menuLoudness_Analyzer"/>
   </widget>
   <action name="actionEditLibrary">
    <property name="text">
@@ -811,6 +816,11 @@
     <string>About</string>
    </property>
   </action>
+  <action name="actionOpen_Loudness_Analyzer">
+   <property name="text">
+    <string>Loudness Analyzer</string>
+   </property>
+  </action>
  </widget>
  <resources/>
  <connections/>