diff --git a/plugins/channelrx/demodfreedv/freedvdemod.cpp b/plugins/channelrx/demodfreedv/freedvdemod.cpp
index 3ee1c62c3..90b383ee5 100644
--- a/plugins/channelrx/demodfreedv/freedvdemod.cpp
+++ b/plugins/channelrx/demodfreedv/freedvdemod.cpp
@@ -576,7 +576,7 @@ void FreeDVDemod::applyFreeDVMode(FreeDVDemodSettings::FreeDVMode mode)
 
         if (getMessageQueueToGUI())
         {
-            DSPConfigureAudio *cfg = new DSPConfigureAudio(m_modemSampleRate);
+            DSPConfigureAudio *cfg = new DSPConfigureAudio(m_modemSampleRate, DSPConfigureAudio::AudioOutput);
             getMessageQueueToGUI()->push(cfg);
         }
     }
diff --git a/plugins/channelrx/demodssb/ssbdemod.cpp b/plugins/channelrx/demodssb/ssbdemod.cpp
index afe9f4db0..8a64cb445 100644
--- a/plugins/channelrx/demodssb/ssbdemod.cpp
+++ b/plugins/channelrx/demodssb/ssbdemod.cpp
@@ -450,7 +450,7 @@ void SSBDemod::applyAudioSampleRate(int sampleRate)
 
     if (m_guiMessageQueue) // forward to GUI if any
     {
-        DSPConfigureAudio *cfg = new DSPConfigureAudio(m_audioSampleRate);
+        DSPConfigureAudio *cfg = new DSPConfigureAudio(m_audioSampleRate, DSPConfigureAudio::AudioOutput);
         m_guiMessageQueue->push(cfg);
     }
 }
diff --git a/plugins/channeltx/modfreedv/freedvmod.cpp b/plugins/channeltx/modfreedv/freedvmod.cpp
index 4cff2888f..5ca596d5b 100644
--- a/plugins/channeltx/modfreedv/freedvmod.cpp
+++ b/plugins/channeltx/modfreedv/freedvmod.cpp
@@ -639,7 +639,7 @@ void FreeDVMod::applyFreeDVMode(FreeDVModSettings::FreeDVMode mode)
 
         if (getMessageQueueToGUI())
         {
-            DSPConfigureAudio *cfg = new DSPConfigureAudio(m_modemSampleRate);
+            DSPConfigureAudio *cfg = new DSPConfigureAudio(m_modemSampleRate, DSPConfigureAudio::AudioInput);
             getMessageQueueToGUI()->push(cfg);
         }
     }
diff --git a/plugins/channeltx/modssb/ssbmod.cpp b/plugins/channeltx/modssb/ssbmod.cpp
index 3ff0e6334..f14d2fa1c 100644
--- a/plugins/channeltx/modssb/ssbmod.cpp
+++ b/plugins/channeltx/modssb/ssbmod.cpp
@@ -724,7 +724,7 @@ void SSBMod::applyAudioSampleRate(int sampleRate)
 
     if (getMessageQueueToGUI())
     {
-        DSPConfigureAudio *cfg = new DSPConfigureAudio(m_audioSampleRate);
+        DSPConfigureAudio *cfg = new DSPConfigureAudio(m_audioSampleRate, DSPConfigureAudio::AudioInput);
         getMessageQueueToGUI()->push(cfg);
     }
 }
diff --git a/sdrbase/audio/audiodevicemanager.cpp b/sdrbase/audio/audiodevicemanager.cpp
index 4f1c34619..1541094f7 100644
--- a/sdrbase/audio/audiodevicemanager.cpp
+++ b/sdrbase/audio/audiodevicemanager.cpp
@@ -558,7 +558,7 @@ void AudioDeviceManager::setInputDeviceInfo(int inputDeviceIndex, const InputDev
 
         for (; it != m_inputDeviceSourceMessageQueues[inputDeviceIndex].end(); ++it)
         {
-            DSPConfigureAudio *msg = new DSPConfigureAudio(m_audioInputInfos[deviceName].sampleRate);
+            DSPConfigureAudio *msg = new DSPConfigureAudio(m_audioInputInfos[deviceName].sampleRate, DSPConfigureAudio::AudioInput);
             (*it)->push(msg);
         }
     }
@@ -605,7 +605,7 @@ void AudioDeviceManager::setOutputDeviceInfo(int outputDeviceIndex, const Output
 
         for (; it != m_outputDeviceSinkMessageQueues[outputDeviceIndex].end(); ++it)
         {
-            DSPConfigureAudio *msg = new DSPConfigureAudio(m_audioOutputInfos[deviceName].sampleRate);
+            DSPConfigureAudio *msg = new DSPConfigureAudio(m_audioOutputInfos[deviceName].sampleRate, DSPConfigureAudio::AudioOutput);
             (*it)->push(msg);
         }
     }
@@ -655,7 +655,7 @@ void AudioDeviceManager::unsetOutputDeviceInfo(int outputDeviceIndex)
 
         for (; it != m_outputDeviceSinkMessageQueues[outputDeviceIndex].end(); ++it)
         {
-            DSPConfigureAudio *msg = new DSPConfigureAudio(m_audioOutputInfos[deviceName].sampleRate);
+            DSPConfigureAudio *msg = new DSPConfigureAudio(m_audioOutputInfos[deviceName].sampleRate, DSPConfigureAudio::AudioOutput);
             (*it)->push(msg);
         }
     }
@@ -695,7 +695,7 @@ void AudioDeviceManager::unsetInputDeviceInfo(int inputDeviceIndex)
 
         for (; it != m_inputDeviceSourceMessageQueues[inputDeviceIndex].end(); ++it)
         {
-            DSPConfigureAudio *msg = new DSPConfigureAudio(m_audioInputInfos[deviceName].sampleRate);
+            DSPConfigureAudio *msg = new DSPConfigureAudio(m_audioInputInfos[deviceName].sampleRate, DSPConfigureAudio::AudioInput);
             (*it)->push(msg);
         }
     }
diff --git a/sdrbase/dsp/dspcommands.h b/sdrbase/dsp/dspcommands.h
index 12e5403c7..0700530ea 100644
--- a/sdrbase/dsp/dspcommands.h
+++ b/sdrbase/dsp/dspcommands.h
@@ -376,13 +376,23 @@ class SDRBASE_API DSPConfigureAudio : public Message {
     MESSAGE_CLASS_DECLARATION
 
 public:
-    DSPConfigureAudio(int sampleRate) : m_sampleRate(sampleRate)
+    enum AudioType
+    {
+        AudioInput,
+        AudioOutput
+    };
+
+    DSPConfigureAudio(int sampleRate, AudioType audioType) :
+        m_sampleRate(sampleRate),
+        m_autioType(audioType)
     { }
 
     int getSampleRate() const { return m_sampleRate; }
+    bool getAudioType() const { return m_autioType; }
 
 private:
     int m_sampleRate;
+    AudioType m_autioType;
 };
 
 #endif // INCLUDE_DSPCOMMANDS_H