diff --git a/src/audiolayerwidget.cpp b/src/audiolayerwidget.cpp
index d62c165..1eb4364 100644
--- a/src/audiolayerwidget.cpp
+++ b/src/audiolayerwidget.cpp
@@ -1,8 +1,9 @@
 #include "audiolayerwidget.h"
 
 
-AudioLayerWidget::AudioLayerWidget(QWidget *parent, QString name):
+AudioLayerWidget::AudioLayerWidget(QWidget *parent, QString name, int layer):
     QGroupBox(parent)
+  , m_layer(layer)
   , m_suspendResumeButton(0)
   , m_volumeIndicator(new QSpinBox)
   , m_panIndicator(new QSpinBox)
@@ -93,7 +94,7 @@ AudioLayerWidget::AudioLayerWidget(QWidget *parent, QString name):
     m_progressTime->setDisplayFormat("h:mm:ss:zzz");
     m_progressTime->setReadOnly(true);
     m_progressTime->setButtonSymbols(QAbstractSpinBox::NoButtons);
-    m_progressTime->setMaximumWidth(120);
+    m_progressTime->setMaximumWidth(100);
     progressTime->addWidget(m_progressTimeLabel);
     progressTime->addWidget(m_progressTime);
     m_totalTimeLabel = new QLabel;
@@ -102,7 +103,7 @@ AudioLayerWidget::AudioLayerWidget(QWidget *parent, QString name):
     m_totalTimeValue->setDisplayFormat("h:mm:ss:zzz");
     m_totalTimeValue->setReadOnly(true);
     m_totalTimeValue->setButtonSymbols(QAbstractSpinBox::NoButtons);
-    m_totalTimeValue->setMaximumWidth(120);
+    m_totalTimeValue->setMaximumWidth(100);
     progressTime->addWidget(m_totalTimeLabel);
     progressTime->addWidget(m_totalTimeValue);
     layout->addLayout(progressTime);
@@ -153,11 +154,14 @@ void AudioLayerWidget::toggleSuspendResume()
         case Status::PlayingLoop:
         case Status::PlayingOnce:
             this->setPlaybackStatus(Status::Paused);
+            emit uiPlaybackChanged(m_layer, Status::Paused);
+            break;
         case Status::Paused:
         case Status::Stopped:
             this->setPlaybackStatus(Status::PlayingOnce);
+            emit uiPlaybackChanged(m_layer, Status::PlayingOnce);
+            break;
     }
-    // ToDo: call the audio engine
 }
 
 // from DMX signals
@@ -195,13 +199,10 @@ void AudioLayerWidget::fileLoaded(QString file)
     }
 }
 
-void AudioLayerWidget::setPlaybackStatus(Status status)
+QString AudioLayerWidget::getStatus()
 {
-    m_status = status;
-    if (status == Status::Stopped)
-        m_progressTime->setTime(QTime::fromMSecsSinceStartOfDay(0));
     QString tmp;
-    switch (status) {
+    switch (m_status) {
     case Status::Paused:
         tmp.append("Paused");
         break;
@@ -215,8 +216,21 @@ void AudioLayerWidget::setPlaybackStatus(Status status)
         tmp.append("Stopped");
         break;
     }
+    return tmp;
+}
+
+void AudioLayerWidget::setPlaybackStatus(Status status)
+{
+    m_status = status;
+    if (status == Status::Stopped)
+        m_progressTime->setTime(QTime::fromMSecsSinceStartOfDay(0));
+    QString tmp = this->getStatus();
+    m_statusValue->blockSignals(true);
+    m_suspendResumeButton->blockSignals(true);
     m_statusValue->setText(tmp);
     m_suspendResumeButton->setText(tmp);
+    m_statusValue->blockSignals(false);
+    m_suspendResumeButton->blockSignals(false);
 }
 
 void AudioLayerWidget::durationChanged(qint64 dur)
diff --git a/src/audiolayerwidget.h b/src/audiolayerwidget.h
index e5270d5..78d0b4a 100644
--- a/src/audiolayerwidget.h
+++ b/src/audiolayerwidget.h
@@ -23,7 +23,7 @@ class AudioLayerWidget : public QGroupBox
     Q_OBJECT
     
 public:
-    explicit AudioLayerWidget(QWidget *parent = 0, QString name = "Layer");
+    explicit AudioLayerWidget(QWidget *parent = 0, QString name = "Layer", int layer = 0);
     ~AudioLayerWidget();
     void setVol(qreal vol);
     void resume();
@@ -32,17 +32,18 @@ public:
     void setLoop(bool on);
     void setPlaybackStatus(Status status);
     inline Status getPlaybackStatus() { return m_status; }
+    QString getStatus();
 
 private:
+    Status m_status;
+    int m_layer;
     QPushButton *m_suspendResumeButton;
-
     QLabel *m_statusLabel;
     QLabel * m_statusValue;
     QLabel *m_fileLabel;
     QLabel *m_fileValue;
     QLabel * m_folderLabel;
     QLabel * m_folderValue;
-
     QLabel *m_volumeLabel;
     QSlider *m_volumeSlider;
     QSpinBox *m_volumeIndicator;
@@ -52,7 +53,6 @@ private:
     QLabel *m_pitchLabel;
     QSlider *m_pitchSlider;
     QSpinBox *m_pitchIndicator;
-
     QLabel * m_progressLabel;
     QSlider *m_progressSlider;
     QLabel *m_progressTimeLabel;
@@ -60,8 +60,6 @@ private:
     QLabel *m_totalTimeLabel;
     QTimeEdit *m_totalTimeValue;
 
-    Status m_status;
-
 public slots:
     void toggleSuspendResume();
     void volumeChanged(int vol);
@@ -71,6 +69,11 @@ public slots:
     void fileLoaded(QString file);
     void durationChanged(qint64 dur);
     void refreshUi(float progress);
+
+signals:
+    void uiPlaybackChanged(int layer, Status s);
+    void uiSliderChanged(int layer, Slider s, Status status);
+
 };
 
 #endif // AUDIOLAYERWIDGET_H
diff --git a/src/audiowidget.cpp b/src/audiowidget.cpp
index 160182d..700b846 100644
--- a/src/audiowidget.cpp
+++ b/src/audiowidget.cpp
@@ -5,10 +5,12 @@ AudioWidget::AudioWidget() :
      m_layout(new QHBoxLayout())
   ,  m_refreshUi(new QTimer(this))
 {
-
     for (int i= 0; i < Settings::getInstance()->getLayersNumber(); i++ ) {
-        m_layout->insertWidget(i, new AudioLayerWidget(this, tr("Layer %1").arg(i + 1)));
-     }
+        AudioLayerWidget *alw = new AudioLayerWidget(this, tr("Layer %1").arg(i + 1), i);
+        m_layout->insertWidget(i, alw);
+        connect(alw, SIGNAL(uiSliderAction(int, Slider, qreal)), this, SLOT(uiSliderAction(int, Status)));
+        connect(alw, SIGNAL(uiPlaybackChanged(int, Status)), this, SLOT(uiChangePlaybackStatus(int, Status)));
+    }
     setLayout(m_layout);
     connect(m_refreshUi, SIGNAL(timeout()), this, SLOT(refreshUi()));
     m_refreshUi->start(UI_REFRESH_TIME);
@@ -89,3 +91,21 @@ void AudioWidget::refreshUi() {
         }
     }
 }
+
+void AudioWidget::uiSliderAction(int layer, Slider s, qreal value)
+{
+    switch (s){
+    case Slider::Volume:
+        this->volChanged(layer, value);
+    case Slider::Pan:
+        this->panChanged(layer, value);
+    case Slider::Pitch:
+        this->pitchChanged(layer, value);
+    }
+}
+
+void AudioWidget::uiChangePlaybackStatus(int layer, Status s) {
+    qDebug("changing playback %i %i", layer, s);
+    m_mae.playbackChanged(layer, s);
+}
+
diff --git a/src/audiowidget.h b/src/audiowidget.h
index b35ecbd..48f2b4b 100644
--- a/src/audiowidget.h
+++ b/src/audiowidget.h
@@ -16,6 +16,7 @@
 class AudioWidget : public QWidget
 {
     friend class libreMediaServerAudio;
+    friend class AudioLayerWidget;
 
     Q_OBJECT
 
@@ -38,6 +39,10 @@ private:
     QHBoxLayout *m_layout;
     QTimer *m_refreshUi;
 
+public slots:
+    void uiSliderAction(int layer, Slider s, qreal value);
+    void uiChangePlaybackStatus(int layer, Status s);
+
 private slots:
     void refreshUi();
 };
diff --git a/src/defines.h b/src/defines.h
index b34cf0c..50fe3ec 100644
--- a/src/defines.h
+++ b/src/defines.h
@@ -8,7 +8,6 @@
 #define VERSION "LibreMediaServer-Audio 0.1.4"
 #define COPYRIGHT "(C) 2014-2024 Santi Norena lms@criptomart.net"
 #define LICENSE "GPL 3 License. See LICENSE.txt and credits.txt for details"
-#define LAYERS_NUMBER 4 // esto tiene que desaparecer
 #define DEFAULT_FILE "lms-audio.xlm"
 #define SUSPEND_LABEL       "Pause"
 #define RESUME_LABEL        "Resume"
@@ -62,5 +61,12 @@ enum Status
     PlayingLoop,
 };
 
+enum Slider
+{
+    Volume,
+    Pan,
+    Pitch,
+};
+
 #endif // DEFINES_H
 
diff --git a/src/olathread.cpp b/src/olathread.cpp
index 900fc3b..5808cb5 100644
--- a/src/olathread.cpp
+++ b/src/olathread.cpp
@@ -6,18 +6,16 @@ olaThread::olaThread(QObject *parent)
     Q_UNUSED(parent);
     m_counter = 0;
     gettimeofday(&m_last_data, NULL);
-    // Init the dmx buffer to 0
-    for (int i=0; i < LAYERS_NUMBER; i++)
+    for (int i=0; i < MAX_LAYERS; i++)
     {
       for (int j=0; j < LAYER_CHANNELS; j++)
       {
         m_dmx[i][j] = 0;
       }
     }
-    init(); // start the ola connection
+    init();
 }
 
-    // --- DECONSTRUCTOR ---
 olaThread::~olaThread() {
     stop();
 }
@@ -70,7 +68,7 @@ void olaThread::NewDmx(const ola::client::DMXMetadata &data,
     emit layerReceived();
     foreach (const dmxSetting &i, Settings::getInstance()->getDmxSettings()) { // loop for reading the channels by layer.
       if(i.universe == universe && i.address > -1) { // Compare if the layer is from this universe AND if the DMX address is 0 or greater, process this layer.
-        for (int j = 0; j < LAYER_CHANNELS; j++){
+        for (int j = 0; j < MAX_LAYERS; j++){
           int value = buffer.Get((i.address) + j); // Get the value for this channel.
           if (m_dmx[i.layer][j] != value) { // Compare the new value with the old value.
             emit dmxOutput(i.layer,j,value);
@@ -103,7 +101,7 @@ bool olaThread::CheckDataLoss() {
 void olaThread::resendDmx()
 {
 //    qDebug() << "Resending DMX info";
-    for (int i = 0; i < Settings::getInstance()->getLayersNumber(); i++) { // loop for reading the channels by layer.
+    for (int i = 0; i < MAX_LAYERS; i++) { // loop for reading the channels by layer.
         for (int j = 0; j < LAYER_CHANNELS; j++){
             emit dmxOutput(i, j, m_dmx[i][j]);
         }
diff --git a/src/olathread.h b/src/olathread.h
index 7e7a5a1..070922e 100644
--- a/src/olathread.h
+++ b/src/olathread.h
@@ -50,7 +50,7 @@ private:
     unsigned int m_counter;
     struct timeval m_last_data; // Last DMX frame received
 
-    int m_dmx[LAYERS_NUMBER][LAYER_CHANNELS]; // DMX Buffer. Habría que cambiarlo si queremos hacer las capas dinámicas
+    int m_dmx[MAX_LAYERS][LAYER_CHANNELS]; // DMX Buffer. Habría que cambiarlo si queremos hacer las capas dinámicas
 
     /**
      *  @brief Callback from ola. Control de errores en el registro de Universos en OLA
diff --git a/src/settings.cpp b/src/settings.cpp
index 10485d1..4dc7bff 100644
--- a/src/settings.cpp
+++ b/src/settings.cpp
@@ -42,7 +42,7 @@ void Settings::readFromFile(QString file) {
     QXmlStreamReader* xmlReader = new QXmlStreamReader(xmlFile);
     int counter = 0;
     //Parse the XML until we reach end of it
-    while(!xmlReader->atEnd() && !xmlReader->hasError() && counter < LAYERS_NUMBER) {
+    while(!xmlReader->atEnd() && !xmlReader->hasError() && counter < MAX_LAYERS) {
         // Read next element
         QXmlStreamReader::TokenType token = xmlReader->readNext();
         //If token is just StartDocument - go to next
@@ -75,8 +75,8 @@ void Settings::readFromFile(QString file) {
                     m_universe.insert(temp.universe);
 //                    emit registerUniverse(temp.universe);
                 }
+                counter++;
             }
-            counter++;
         }
     }
 
diff --git a/src/settings.h b/src/settings.h
index f1c8eec..2301d53 100644
--- a/src/settings.h
+++ b/src/settings.h
@@ -92,10 +92,10 @@ public:
     */
    inline void setLayersNumber(int layersNumber)
    {
-       if (layersNumber <= LAYERS_NUMBER)
+       if (layersNumber <= MAX_LAYERS)
            m_layersNumber = layersNumber;
        else
-           m_layersNumber = LAYERS_NUMBER;
+           m_layersNumber = MAX_LAYERS;
    }
 
    inline int getAudioDeviceId() { return m_audioDeviceId; }