diff --git a/src/blackcore/context_audio.h b/src/blackcore/context_audio.h
index febb8cfde..55c73e266 100644
--- a/src/blackcore/context_audio.h
+++ b/src/blackcore/context_audio.h
@@ -83,11 +83,17 @@ namespace BlackCore
         // KB: Is see some potential changes here, which we should do when we have the new 2.0 vatlib
         // 1. volume integrated in voice room?
         // 2. Value object for volumes CVolume / CVolumeList?
-        void changedAudioVolumes(QList<qint32> volumes);
+        void changedAudioVolumes(qint32 com1Volume, qint32 com2Volume);
 
         //! Mute changed
         void changedMute(bool muted);
 
+        //! Changed audio devices (e.g. device enabled/disable)
+        void changedAudioDevices(const BlackMisc::Audio::CAudioDeviceList &devices);
+
+        //! Changed slection of audio devices
+        void changedSelectedAudioDevices(const BlackMisc::Audio::CAudioDeviceList &devices);
+
     public slots:
         //! Get voice rooms for COM1, COM2:
         virtual BlackMisc::Audio::CVoiceRoomList getComVoiceRoomsWithAudioStatus() const = 0;
@@ -182,6 +188,9 @@ namespace BlackCore
 
         //! Enable audio loopback
         virtual void enableAudioLoopback(bool enable = true) = 0;
+
+        //! Command line was entered
+        virtual bool parseCommandLine(const QString &commandLine) = 0;
     };
 }
 
diff --git a/src/blackcore/context_audio_impl.cpp b/src/blackcore/context_audio_impl.cpp
index b99f6e1f9..50e3a1d92 100644
--- a/src/blackcore/context_audio_impl.cpp
+++ b/src/blackcore/context_audio_impl.cpp
@@ -14,6 +14,7 @@
 #include "blackmisc/voiceroomlist.h"
 #include "blackmisc/hotkeyfunction.h"
 #include "blackmisc/logmessage.h"
+#include "blackmisc/simplecommandparser.h"
 
 #include <QTimer>
 
@@ -154,13 +155,27 @@ namespace BlackCore
         Q_ASSERT(this->m_voice);
         Q_ASSERT(audioDevice.getType() != CAudioDevice::Unknown);
         CLogMessage(this, CLogCategory::contextSlot()).debug() << Q_FUNC_INFO << audioDevice;
+        bool changed = false;
         if (audioDevice.getType() == CAudioDevice::InputDevice)
         {
-            this->m_voice->setInputDevice(audioDevice);
+            if (this->m_voice->getCurrentInputDevice() != audioDevice)
+            {
+                this->m_voice->setInputDevice(audioDevice);
+                changed = true;
+            }
         }
         else
         {
-            this->m_voice->setOutputDevice(audioDevice);
+            if (this->m_voice->getCurrentOutputDevice() != audioDevice)
+            {
+                this->m_voice->setOutputDevice(audioDevice);
+                changed = true;
+            }
+        }
+
+        if (changed)
+        {
+            emit changedSelectedAudioDevices(this->getCurrentAudioDevices());
         }
     }
 
@@ -176,28 +191,45 @@ namespace BlackCore
         qint32 vol1 = com1.getVolumeOutput();
         qint32 vol2 = com2.getVolumeOutput();
         this->setVolumes(vol1, vol2);
-
-        // enable / disable in the same step
-        m_channelCom1->switchAudioOutput(com1.isEnabled());
-        m_channelCom2->switchAudioOutput(com2.isEnabled());
     }
 
     void CContextAudio::setVolumes(qint32 com1Volume, qint32 com2Volume)
     {
         if (m_channelCom1->getVolume() == com1Volume && m_channelCom2->getVolume() == com2Volume) { return; }
 
-        m_channelCom1->setRoomOutputVolume(com1Volume);
-        m_channelCom2->setRoomOutputVolume(com2Volume);
-        m_channelCom1->switchAudioOutput(com1Volume < 1);
-        m_channelCom2->switchAudioOutput(com2Volume < 1);
-        emit changedAudioVolumes(QList<qint32>({com1Volume, com2Volume}));
+        bool enable1 = com1Volume > 0;
+        bool enable2 = com2Volume > 0;
+        bool muted = !enable1 && !enable2;
+
+        //! \todo m_channelCom1->setVolume here crashed, also what is correct setRoomOutputVolume or setVolume
+        m_channelCom1->setVolume(com1Volume);
+        m_channelCom2->setVolume(com2Volume);
+        this->setMute(muted);
+
+        emit changedAudioVolumes(com1Volume, com2Volume);
     }
 
     void CContextAudio::setMute(bool muted)
     {
         if (this->isMuted() == muted) { return; } // avoid roundtrips / unnecessary signals
+
         m_channelCom1->switchAudioOutput(!muted);
         m_channelCom2->switchAudioOutput(!muted);
+        m_channelCom1->setRoomOutputVolume(muted ? 0 : VoiceRoomEnabledVolume);
+        m_channelCom2->setRoomOutputVolume(muted ? 0 : VoiceRoomEnabledVolume);
+
+        // adjust volume when unmuted
+        if (!muted)
+        {
+            bool adjusted = false;
+            qint32 v1 = this->m_channelCom1->getVolume();
+            qint32 v2 = this->m_channelCom2->getVolume();
+            if (this->m_channelCom1->getVolume() < MinUnmuteVolume) { v1 = MinUnmuteVolume; adjusted = true; }
+            if (this->m_channelCom2->getVolume() < MinUnmuteVolume) { v2 = MinUnmuteVolume; adjusted = true; }
+            if (adjusted) { this->setVolumes(v1, v2); }
+        }
+
+        // signal
         emit changedMute(muted);
     }
 
@@ -385,6 +417,54 @@ namespace BlackCore
         m_voice->enableAudioLoopback(enable);
     }
 
+    bool CContextAudio::parseCommandLine(const QString &commandLine)
+    {
+        static CSimpleCommandParser parser(
+        {
+            ".vol", ".volume",    // all volumes
+            ".vol1", ".volume1",  // COM1 volume
+            ".vol2", ".volume2",  // COM2 volume
+            ".mute",              // mute
+            ".unmute"             // unmute
+        });
+        if (commandLine.isEmpty()) return false;
+        parser.parse(commandLine);
+        if (!parser.isKnownCommand()) return false;
+
+        if (parser.matchesCommand(".mute"))
+        {
+            this->setMute(true);
+            return true;
+        }
+        else if (parser.matchesCommand(".unmute"))
+        {
+            this->setMute(false);
+            return true;
+        }
+        else if (parser.commandStartsWith("vol") && parser.countParts() > 1)
+        {
+            qint32 v = parser.toInt(1);
+            if (v >= 0 && v <= 100)
+            {
+                qint32 v1 = this->m_channelCom1->getVolume();
+                qint32 v2 = this->m_channelCom2->getVolume();
+                if (parser.commandEndsWith("1"))
+                {
+                    this->setVolumes(v, v2);
+                }
+                else if (parser.commandEndsWith("2"))
+                {
+                    this->setVolumes(v1, v);
+                }
+                else
+                {
+                    this->setVolumes(v, v);
+                }
+            }
+        }
+        return false;
+    }
+
     /*
      * Connection status changed
      */
diff --git a/src/blackcore/context_audio_impl.h b/src/blackcore/context_audio_impl.h
index 7da7a1787..be68c976e 100644
--- a/src/blackcore/context_audio_impl.h
+++ b/src/blackcore/context_audio_impl.h
@@ -118,6 +118,19 @@ namespace BlackCore
         //! \copydoc IContextAudio::enableAudioLoopback()
         virtual void enableAudioLoopback(bool enable = true) override;
 
+        //! \addtogroup commandline
+        //! @{
+        //! <pre>
+        //! .mute                          mute             CContextAudio
+        //! .unmute                        unmute           CContextAudio
+        //! .vol .volume   volume 0..100   set volume       CContextAudio
+        //! .vol1 .volume1 volume 0..100   set volume COM1  CContextAudio
+        //! .vol2 .volume2 volume 0..100   set volume COM2  CContextAudio
+        //! </pre>
+        //! @}
+        //! \copydoc IContextAudio::parseCommandLine
+        virtual bool parseCommandLine(const QString &commandLine) override;
+
     protected:
         //! Constructor
         CContextAudio(CRuntimeConfig::ContextMode mode, CRuntime *runtime);
@@ -144,6 +157,9 @@ namespace BlackCore
         void ps_initNotificationSounds();
 
     private:
+        const qint32 MinUnmuteVolume = 20; //!< minimum volume when unmuted
+        const qint32 VoiceRoomEnabledVolume = 95; //!< voice room volume when enabled
+
         //! Connection in transition
         bool inTransitionState() const;
 
@@ -156,6 +172,6 @@ namespace BlackCore
         QPointer<IVoiceChannel> m_channelCom1;
         QPointer<IVoiceChannel> m_channelCom2;
     };
-}
+} // namespace
 
 #endif // guard
diff --git a/src/blackcore/context_audio_proxy.cpp b/src/blackcore/context_audio_proxy.cpp
index d707b20eb..e2e838ca0 100644
--- a/src/blackcore/context_audio_proxy.cpp
+++ b/src/blackcore/context_audio_proxy.cpp
@@ -39,7 +39,13 @@ namespace BlackCore
                                "changedVoiceRooms", this, SIGNAL(changedVoiceRooms(BlackMisc::Audio::CVoiceRoomList, bool)));
         Q_ASSERT(s);
         s = connection.connect(serviceName, IContextAudio::ObjectPath(), IContextAudio::InterfaceName(),
-                               "changedAudioVolumes", this, SIGNAL(changedAudioVolumes(QList<qint32>)));
+                               "changedAudioVolumes", this, SIGNAL(changedAudioVolumes(qint32, qint32)));
+        Q_ASSERT(s);
+        s = connection.connect(serviceName, IContextAudio::ObjectPath(), IContextAudio::InterfaceName(),
+                               "changedAudioDevices", this, SIGNAL(changedAudioDevices(BlackMisc::Audio::CAudioDeviceList)));
+        Q_ASSERT(s);
+        s = connection.connect(serviceName, IContextAudio::ObjectPath(), IContextAudio::InterfaceName(),
+                               "changedSelectedAudioDevices", this, SIGNAL(changedSelectedAudioDevices(BlackMisc::Audio::CAudioDeviceList)));
         Q_ASSERT(s);
         s = connection.connect(serviceName, IContextAudio::ObjectPath(), IContextAudio::InterfaceName(),
                                "changedMute", this, SIGNAL(changedMute(bool)));
@@ -239,4 +245,12 @@ namespace BlackCore
         return this->m_dBusInterface->callDBus(QLatin1Literal("enableAudioLoopback"), enable);
     }
 
+    /*
+     * Parse command line
+     */
+    bool CContextAudioProxy::parseCommandLine(const QString &commandLine)
+    {
+        return this->m_dBusInterface->callDBusRet<bool>(QLatin1Literal("parseCommandLine"), commandLine);
+    }
+
 } // namespace
diff --git a/src/blackcore/context_audio_proxy.h b/src/blackcore/context_audio_proxy.h
index 6c7ce5abd..c66a9fb22 100644
--- a/src/blackcore/context_audio_proxy.h
+++ b/src/blackcore/context_audio_proxy.h
@@ -122,6 +122,10 @@ namespace BlackCore
 
         //! \copydoc IContextAudio::enableAudioLoopback()
         virtual void enableAudioLoopback(bool enable = true) override;
+
+        //! \copydoc IContextOwnAircraft::parseCommandLine
+        virtual bool parseCommandLine(const QString &commandLine) override;
+
     };
 }
 
diff --git a/src/blackgui/components/audiosetupcomponent.cpp b/src/blackgui/components/audiosetupcomponent.cpp
index 46d9b26d6..73248b3a1 100644
--- a/src/blackgui/components/audiosetupcomponent.cpp
+++ b/src/blackgui/components/audiosetupcomponent.cpp
@@ -50,18 +50,23 @@ namespace BlackGui
 
             // based on audio context
             Q_ASSERT(this->getIContextAudio());
-            bool connected = false;
             if (this->getIContextAudio())
             {
                 this->initAudioDeviceLists();
-                connected = this->connect(this->getIContextAudio(), &IContextAudio::audioTestCompleted, this, &CAudioSetupComponent::ps_audioTestUpdate);
-                Q_ASSERT(connected);
-                connected = this->connect(this->ui->cb_SetupAudioInputDevice, SIGNAL(currentIndexChanged(int)), this, SLOT(ps_audioDeviceSelected(int)));
+
+                // the connects depend on initAudioDeviceLists
+                bool connected = this->connect(this->ui->cb_SetupAudioInputDevice, SIGNAL(currentIndexChanged(int)), this, SLOT(ps_audioDeviceSelected(int)));
                 Q_ASSERT(connected);
                 connected = this->connect(this->ui->cb_SetupAudioOutputDevice, SIGNAL(currentIndexChanged(int)), this, SLOT(ps_audioDeviceSelected(int)));
                 Q_ASSERT(connected);
+
                 this->connect(this->ui->pb_SetupAudioMicrophoneTest, &QPushButton::clicked, this, &CAudioSetupComponent::ps_startAudioTest);
                 this->connect(this->ui->pb_SetupAudioSquelchTest, &QPushButton::clicked, this, &CAudioSetupComponent::ps_startAudioTest);
+
+                // context
+                this->connect(this->getIContextAudio(), &IContextAudio::audioTestCompleted, this, &CAudioSetupComponent::ps_audioTestUpdate);
+                this->connect(this->getIContextAudio(), &IContextAudio::changedAudioDevices, this, &CAudioSetupComponent::ps_onAudioDevicesChanged);
+                this->connect(this->getIContextAudio(), &IContextAudio::changedSelectedAudioDevices, this, &CAudioSetupComponent::ps_onCurrentAudioDevicesChanged);
             }
             this->reloadSettings();
         }
@@ -92,33 +97,9 @@ namespace BlackGui
          */
         void CAudioSetupComponent::initAudioDeviceLists()
         {
-            if (!this->getIContextAudio()) return;
-            this->ui->cb_SetupAudioOutputDevice->clear();
-            this->ui->cb_SetupAudioInputDevice->clear();
-
-            foreach(CAudioDevice device, this->getIContextAudio()->getAudioDevices())
-            {
-                if (device.getType() == CAudioDevice::InputDevice)
-                {
-                    this->ui->cb_SetupAudioInputDevice->addItem(device.toQString(true));
-                }
-                else if (device.getType() == CAudioDevice::OutputDevice)
-                {
-                    this->ui->cb_SetupAudioOutputDevice->addItem(device.toQString(true));
-                }
-            }
-
-            foreach(CAudioDevice device, this->getIContextAudio()->getCurrentAudioDevices())
-            {
-                if (device.getType() == CAudioDevice::InputDevice)
-                {
-                    this->ui->cb_SetupAudioInputDevice->setCurrentText(device.toQString(true));
-                }
-                else if (device.getType() == CAudioDevice::OutputDevice)
-                {
-                    this->ui->cb_SetupAudioOutputDevice->setCurrentText(device.toQString(true));
-                }
-            }
+            if (!this->getIContextAudio()) { return; }
+            this->ps_onAudioDevicesChanged(this->getIContextAudio()->getAudioDevices());
+            this->ps_onCurrentAudioDevicesChanged(this->getIContextAudio()->getCurrentAudioDevices());
         }
 
         /*
@@ -236,6 +217,38 @@ namespace BlackGui
             }
         }
 
+        void CAudioSetupComponent::ps_onCurrentAudioDevicesChanged(const BlackMisc::Audio::CAudioDeviceList &devices)
+        {
+            foreach(CAudioDevice device, devices)
+            {
+                if (device.getType() == CAudioDevice::InputDevice)
+                {
+                    this->ui->cb_SetupAudioInputDevice->setCurrentText(device.toQString(true));
+                }
+                else if (device.getType() == CAudioDevice::OutputDevice)
+                {
+                    this->ui->cb_SetupAudioOutputDevice->setCurrentText(device.toQString(true));
+                }
+            }
+        }
+
+        void CAudioSetupComponent::ps_onAudioDevicesChanged(const BlackMisc::Audio::CAudioDeviceList &devices)
+        {
+            this->ui->cb_SetupAudioOutputDevice->clear();
+            this->ui->cb_SetupAudioInputDevice->clear();
+
+            foreach(CAudioDevice device, devices)
+            {
+                if (device.getType() == CAudioDevice::InputDevice)
+                {
+                    this->ui->cb_SetupAudioInputDevice->addItem(device.toQString(true));
+                }
+                else if (device.getType() == CAudioDevice::OutputDevice)
+                {
+                    this->ui->cb_SetupAudioOutputDevice->addItem(device.toQString(true));
+                }
+            }
+        }
+
     } // namespace
 } // namespace
-
diff --git a/src/blackgui/components/audiosetupcomponent.h b/src/blackgui/components/audiosetupcomponent.h
index 6d49ed1b8..894913b1e 100644
--- a/src/blackgui/components/audiosetupcomponent.h
+++ b/src/blackgui/components/audiosetupcomponent.h
@@ -65,6 +65,12 @@ namespace BlackGui
              */
             void ps_audioDeviceSelected(int index);
 
+            //! Current audio devices changed
+            void ps_onCurrentAudioDevicesChanged(const Audio::CAudioDeviceList &devices);
+
+            //! Audio devices changed
+            void ps_onAudioDevicesChanged(const Audio::CAudioDeviceList &devices);
+
         private:
             //! Audio test modes
             enum AudioTest
diff --git a/src/blackgui/components/audiovolumecomponent.cpp b/src/blackgui/components/audiovolumecomponent.cpp
index 5cece150c..b1a428aef 100644
--- a/src/blackgui/components/audiovolumecomponent.cpp
+++ b/src/blackgui/components/audiovolumecomponent.cpp
@@ -23,8 +23,16 @@ namespace BlackGui
             ui(new Ui::CAudioVolumeComponent)
         {
             ui->setupUi(this);
-            bool c = connect(this->ui->pb_ShowWinMixer, &QPushButton::pressed, this, &CAudioVolumeComponent::ps_onWindowsMixer);
+            bool c = connect(this->ui->pb_ShowWinMixer, &QPushButton::pressed, this, &CAudioVolumeComponent::ps_onWindowsMixerRequested);
             Q_ASSERT(c);
+
+            c = connect(this->ui->hs_VolumeCom1, &QSlider::sliderReleased, this, &CAudioVolumeComponent::ps_changeVolume);
+            Q_ASSERT(c);
+
+            c = connect(this->ui->hs_VolumeCom2, &QSlider::sliderReleased, this, &CAudioVolumeComponent::ps_changeVolume);
+            Q_ASSERT(c);
+
+            Q_UNUSED(c);
         }
 
         CAudioVolumeComponent::~CAudioVolumeComponent()
@@ -32,8 +40,13 @@ namespace BlackGui
 
         void CAudioVolumeComponent::runtimeHasBeenSet()
         {
+            // from audio context
             bool c = connect(this->getIContextAudio(), &IContextAudio::changedMute, this, &CAudioVolumeComponent::ps_onMuteChanged);
             Q_ASSERT(c);
+            connect(this->getIContextAudio(), &IContextAudio::changedAudioVolumes, this, &CAudioVolumeComponent::ps_onVolumesChanged);
+            Q_ASSERT(c);
+
+            // to audio audio context
             c = connect(this->ui->pb_Mute, &QPushButton::toggled, this->getIContextAudio(), &IContextAudio::setMute);
             Q_ASSERT(c);
         }
@@ -44,15 +57,24 @@ namespace BlackGui
             this->ui->pb_Mute->setChecked(muted);
         }
 
-        void CAudioVolumeComponent::ps_onVolumeChanged(QList<qint32> volumes)
+        void CAudioVolumeComponent::ps_onVolumesChanged(qint32 com1Volume, qint32 com2Volume)
         {
-            Q_ASSERT(volumes.length() == 2);
-            if (volumes.length() != 2) return;
-            this->ui->hs_VolumeCom1->setValue(volumes.at(0));
-            this->ui->hs_VolumeCom2->setValue(volumes.at(1));
+            this->ui->hs_VolumeCom1->setValue(com1Volume);
+            this->ui->hs_VolumeCom2->setValue(com2Volume);
+            this->ui->hs_VolumeCom1->setToolTip(QString::number(com1Volume));
+            this->ui->hs_VolumeCom2->setToolTip(QString::number(com2Volume));
         }
 
-        void CAudioVolumeComponent::ps_onWindowsMixer()
+        void CAudioVolumeComponent::ps_changeVolume()
+        {
+            qint32 v1 = this->ui->hs_VolumeCom1->value();
+            qint32 v2 = this->ui->hs_VolumeCom2->value();
+            this->ui->hs_VolumeCom1->setToolTip(QString::number(v1));
+            this->ui->hs_VolumeCom2->setToolTip(QString::number(v2));
+            this->getIContextAudio()->setVolumes(v1, v2);
+        }
+
+        void CAudioVolumeComponent::ps_onWindowsMixerRequested()
         {
             BlackMisc::Audio::startWindowsMixer();
         }
diff --git a/src/blackgui/components/audiovolumecomponent.h b/src/blackgui/components/audiovolumecomponent.h
index 7e64e7fe6..c2337d5e8 100644
--- a/src/blackgui/components/audiovolumecomponent.h
+++ b/src/blackgui/components/audiovolumecomponent.h
@@ -44,11 +44,14 @@ namespace BlackGui
             //! Mute toggle
             void ps_onMuteChanged(bool muted);
 
-            //! Volumes changed
-            void ps_onVolumeChanged(QList<qint32> volumes);
+            //! Volumes changed (elsewhere)
+            void ps_onVolumesChanged(qint32 com1Volume, qint32 com2Volume);
+
+            //! Change values because of volume GUI controls
+            void ps_changeVolume();
 
             //! Requested windows mixer
-            void ps_onWindowsMixer();
+            void ps_onWindowsMixerRequested();
 
         private:
             QScopedPointer<Ui::CAudioVolumeComponent> ui;
diff --git a/src/blackgui/components/infobarstatuscomponent.cpp b/src/blackgui/components/infobarstatuscomponent.cpp
index ac6c21357..dcbe24f70 100644
--- a/src/blackgui/components/infobarstatuscomponent.cpp
+++ b/src/blackgui/components/infobarstatuscomponent.cpp
@@ -170,13 +170,9 @@ namespace BlackGui
             }
         }
 
-        void CInfoBarStatusComponent::ps_onVolumesChanged(QList<qint32> volumes)
+        void CInfoBarStatusComponent::ps_onVolumesChanged(qint32 com1Volume, qint32 com2Volume)
         {
-            Q_ASSERT(volumes.count() == 2);
-            if (volumes.count() != 2) { return; }
-            qint32 v1 = volumes.at(0);
-            qint32 v2 = volumes.at(1);
-            bool pseudoMute = (v1 < 1 && v2 < 1);
+            bool pseudoMute = (com1Volume < 1 && com2Volume < 1);
             this->ps_onMuteChanged(pseudoMute);
         }
 
@@ -184,5 +180,5 @@ namespace BlackGui
         {
             this->ui->led_Audio->setOn(!muted);
         }
-    }
-}
+    } // namespace
+} // namespace
diff --git a/src/blackgui/components/infobarstatuscomponent.h b/src/blackgui/components/infobarstatuscomponent.h
index f814a9747..01ee91cde 100644
--- a/src/blackgui/components/infobarstatuscomponent.h
+++ b/src/blackgui/components/infobarstatuscomponent.h
@@ -63,7 +63,7 @@ namespace BlackGui
             void ps_customAudioContextMenuRequested(const QPoint &position);
 
             //! Volumes changed 0..100
-            void ps_onVolumesChanged(QList<qint32> volumes);
+            void ps_onVolumesChanged(qint32 com1Volume, qint32 com2Volume);
 
             //! Mute changed
             void ps_onMuteChanged(bool muted);