diff --git a/src/blackcore/context_audio_impl.cpp b/src/blackcore/context_audio_impl.cpp
index 2d05f06b2..c651d860a 100644
--- a/src/blackcore/context_audio_impl.cpp
+++ b/src/blackcore/context_audio_impl.cpp
@@ -46,8 +46,8 @@ namespace BlackCore
         connect(this->m_voice, &CVoiceVatlib::connectionStatusChanged, this, &CContextAudio::connectionStatusChanged);
         if (this->getIContextApplication()) this->connect(this->m_voice, &IVoice::statusMessage, this->getIContextApplication(), &IContextApplication::sendStatusMessage);
 
-        // 5. load sounds (init)
-        CSoundGenerator::playNotificationSound(0, CNotificationSounds::NotificationsLoadSounds);
+        // 5. load sounds (init), not possible in own thread
+        QTimer::singleShot(10 * 1000, this, SLOT(initNotificationSounds()));
     }
 
     /*
@@ -297,6 +297,15 @@ namespace BlackCore
         BlackSound::CSoundGenerator::playNotificationSound(90, notificationSound);
     }
 
+    /*
+     * Notification
+     */
+    void CContextAudio::initNotificationSounds()
+    {
+        // not possible in own thread
+        CSoundGenerator::playNotificationSound(0, CNotificationSounds::NotificationsLoadSounds);
+    }
+
     /*
      * Mic test.
      */
diff --git a/src/blackcore/context_audio_impl.h b/src/blackcore/context_audio_impl.h
index 7547de191..05f517d50 100644
--- a/src/blackcore/context_audio_impl.h
+++ b/src/blackcore/context_audio_impl.h
@@ -118,6 +118,9 @@ namespace BlackCore
         //! \sa IContextAudio::changedVoiceRooms
         void connectionStatusChanged(IVoice::ComUnit comUnit, IVoice::ConnectionStatus oldStatus, IVoice::ConnectionStatus newStatus);
 
+        //! Init notification sounds
+        void initNotificationSounds();
+
     private:
         //! Connection in transition
         bool inTransitionState() const;
diff --git a/src/blackcore/voice_vatlib.cpp b/src/blackcore/voice_vatlib.cpp
index 4609724f6..d3d70b923 100644
--- a/src/blackcore/voice_vatlib.cpp
+++ b/src/blackcore/voice_vatlib.cpp
@@ -42,12 +42,6 @@ namespace BlackCore
             m_voice->GetInputDevices(onInputHardwareDeviceReceived, this);
             m_voice->GetOutputDevices(onOutputHardwareDeviceReceived, this);
 
-            // TODO: read audio device settings here and init with the same devices
-            // If not, settings are there or it is the first run, use the default one
-            // TODO: KB, setting this kind of default device results in an error
-            // setInputDevice(defaultAudioInputDevice());
-            // setOutputDevice(defaultAudioOutputDevice());
-
             connect(this, &CVoiceVatlib::userJoinedLeft, this, &CVoiceVatlib::onUserJoinedLeft, Qt::QueuedConnection);
 
             this->m_voiceRooms.push_back(CVoiceRoom()); // COM1
diff --git a/src/blackcore/voice_vatlib.h b/src/blackcore/voice_vatlib.h
index 6ce9b5739..e7987678a 100644
--- a/src/blackcore/voice_vatlib.h
+++ b/src/blackcore/voice_vatlib.h
@@ -221,7 +221,7 @@ namespace BlackCore
              */
             static inline void cleanup(Cvatlib_Voice_Simple *pointer)
             {
-                pointer->Destroy();
+                if (pointer) pointer->Destroy();
             }
         };