diff --git a/plugins/channelrx/demodnfm/nfmdemodsink.cpp b/plugins/channelrx/demodnfm/nfmdemodsink.cpp
index a790e322c..9bbd55ec4 100644
--- a/plugins/channelrx/demodnfm/nfmdemodsink.cpp
+++ b/plugins/channelrx/demodnfm/nfmdemodsink.cpp
@@ -78,6 +78,10 @@ NFMDemodSink::NFMDemodSink() :
 
 void NFMDemodSink::feed(const SampleVector::const_iterator& begin, const SampleVector::const_iterator& end)
 {
+    if (m_channelSampleRate == 0) {
+        return;
+    }
+
     for (SampleVector::const_iterator it = begin; it != end; ++it)
     {
         Complex c(it->real(), it->imag());
@@ -244,8 +248,8 @@ void NFMDemodSink::processOneSample(Complex &ci)
 
         if (res != m_audioBufferFill)
         {
-            qDebug("NFMDemodSink::feed: %u/%u audio samples written", res, m_audioBufferFill);
-            qDebug("NFMDemodSink::feed: m_audioSampleRate: %u m_channelSampleRate: %d", m_audioSampleRate, m_channelSampleRate);
+            qDebug("NFMDemodSink::processOneSample: %u/%u audio samples written m_audioSampleRate: %u m_channelSampleRate: %d",
+                res, m_audioBufferFill, m_audioSampleRate, m_channelSampleRate);
         }
 
         m_audioBufferFill = 0;
diff --git a/plugins/channelrx/demodssb/ssbdemodsink.cpp b/plugins/channelrx/demodssb/ssbdemodsink.cpp
index b5ba4ad25..f65db7eaa 100644
--- a/plugins/channelrx/demodssb/ssbdemodsink.cpp
+++ b/plugins/channelrx/demodssb/ssbdemodsink.cpp
@@ -92,6 +92,10 @@ SSBDemodSink::~SSBDemodSink()
 
 void SSBDemodSink::feed(const SampleVector::const_iterator& begin, const SampleVector::const_iterator& end)
 {
+    if (m_channelSampleRate == 0) {
+        return;
+    }
+
     Complex ci;
 
 	for(SampleVector::const_iterator it = begin; it < end; ++it)
@@ -240,7 +244,7 @@ void SSBDemodSink::processOneSample(Complex &ci)
             uint res = m_audioFifo.write((const quint8*)&m_audioBuffer[0], m_audioBufferFill);
 
             if (res != m_audioBufferFill) {
-                qDebug("SSBDemodSink::feed: %u/%u samples written", res, m_audioBufferFill);
+                qDebug("SSBDemodSink::processOneSample: %u/%u samples written", res, m_audioBufferFill);
             }
 
             m_audioBufferFill = 0;