diff --git a/plugins/channel/demoddsd/dsddecoder.h b/plugins/channel/demoddsd/dsddecoder.h
index 6b339d1e7..305a21ba5 100644
--- a/plugins/channel/demoddsd/dsddecoder.h
+++ b/plugins/channel/demoddsd/dsddecoder.h
@@ -29,6 +29,7 @@ public:
     ~DSDDecoder();
 
     void pushSample(short sample) { m_decoder.run(sample); }
+    short getFilteredSample() const { return m_decoder.getFilteredSample(); }
     short *getAudio(int& nbSamples) { return m_decoder.getAudio(nbSamples); }
     void resetAudio() { m_decoder.resetAudio(); }
     void enableMbelib(bool enable) { m_decoder.enableMbelib(enable); }
diff --git a/plugins/channel/demoddsd/dsddemod.cpp b/plugins/channel/demoddsd/dsddemod.cpp
index 2d134ff67..3d1182980 100644
--- a/plugins/channel/demoddsd/dsddemod.cpp
+++ b/plugins/channel/demoddsd/dsddemod.cpp
@@ -155,6 +155,12 @@ void DSDDemod::feed(const SampleVector::const_iterator& begin, const SampleVecto
                 sample = 0;
             }
 
+            m_dsdDecoder.pushSample(sample);
+
+            if (m_running.m_enableCosineFiltering) { // show actual input to FSK demod
+            	sample = m_dsdDecoder.getFilteredSample();
+            }
+
             if (m_sampleBufferIndex < (1<<17)) {
                 m_sampleBufferIndex++;
             } else {
@@ -171,7 +177,6 @@ void DSDDemod::feed(const SampleVector::const_iterator& begin, const SampleVecto
 
             Sample s(sample, delayedSample); // I=signal, Q=signal delayed by 20 samples (2400 baud: lowest rate)
             m_scopeSampleBuffer.push_back(s);
-            m_dsdDecoder.pushSample(sample);
 
             if (DSPEngine::instance()->hasDVSerialSupport() && m_dsdDecoder.mbeDVReady())
             {