diff --git a/core/src/dsp/filter.h b/core/src/dsp/filter.h
index 35ac6cb0..a303f101 100644
--- a/core/src/dsp/filter.h
+++ b/core/src/dsp/filter.h
@@ -1,7 +1,7 @@
 #pragma once
 #include <dsp/block.h>
 #include <dsp/window.h>
-#include <spdlog/
+#include <spdlog/spdlog.h>
 
 namespace dsp {
 
@@ -127,8 +127,11 @@ namespace dsp {
         }
 
         int run() {
+            spdlog::warn("+++++++++++++ DEEMP READING");
             count = _in->read();
-            if (count < 0) { return -1; }
+            if (count < 0) { spdlog::warn("++++++++++ DEEMP EXIT"); return -1; }
+
+            spdlog::warn("+++++++++++++ DEEMP PROC");
 
             if (bypass) {
                 if (out.aquire() < 0) { return -1; } 
@@ -146,6 +149,8 @@ namespace dsp {
             }
             lastOut = out.data[count - 1];
 
+            spdlog::warn("+++++++++++++ DEEMP DONE");
+
             _in->flush();
             out.write(count);
             return count;
diff --git a/core/src/dsp/resampling.h b/core/src/dsp/resampling.h
index f74e7568..affd3d86 100644
--- a/core/src/dsp/resampling.h
+++ b/core/src/dsp/resampling.h
@@ -96,16 +96,23 @@ namespace dsp {
         }
 
         int run() {
+            if constexpr (std::is_same_v<T, float>) { spdlog::warn("======= RESAMP WAITING ========"); }
             count = _in->read();
-            if (count < 0) { return -1; }
+            if (count < 0) {
+                return -1;
+            }
 
             int outCount = calcOutSize(count);
 
             memcpy(bufStart, _in->data, count * sizeof(T));
             _in->flush();
 
+            if constexpr (std::is_same_v<T, float>) { spdlog::warn("======= RESAMP GOT DATA ========"); }
+
             // Write to output
-            if (out.aquire() < 0) { return -1; }
+            if (out.aquire() < 0) {
+                return -1;
+            }
             int outIndex = 0;
             if constexpr (std::is_same_v<T, float>) {
                 for (int i = 0; outIndex < outCount; i += _decim) {
@@ -129,6 +136,8 @@ namespace dsp {
             }
             out.write(count);
 
+            if constexpr (std::is_same_v<T, float>) { spdlog::warn("======= RESAMP WRITTEN ========"); }
+
             memmove(buffer, &buffer[count], tapCount * sizeof(T));
 
             return count;
diff --git a/core/src/dsp/sink.h b/core/src/dsp/sink.h
index ce50bf0b..1d362721 100644
--- a/core/src/dsp/sink.h
+++ b/core/src/dsp/sink.h
@@ -96,4 +96,38 @@ namespace dsp {
         stream<T>* _in;
 
     };
+
+    template <class T>
+    class NullSink : public generic_block<NullSink<T>> {
+    public:
+        NullSink() {}
+
+        NullSink(stream<T>* in) { init(in); }
+
+        ~NullSink() { generic_block<NullSink<T>>::stop(); }
+
+        void init(stream<T>* in) {
+            _in = in;
+            generic_block<NullSink<T>>::registerInput(_in);
+        }
+
+        void setInput(stream<T>* in) {
+            std::lock_guard<std::mutex> lck(generic_block<NullSink<T>>::ctrlMtx);
+            generic_block<NullSink<T>>::tempStop();
+            _in = in;
+            generic_block<NullSink<T>>::tempStart();
+        }
+
+        int run() {
+            count = _in->read();
+            if (count < 0) { return -1; }
+            _in->flush();
+            return count;
+        }
+
+    private:
+        int count;
+        stream<T>* _in;
+
+    };
 }
\ No newline at end of file
diff --git a/core/src/dsp/stream.h b/core/src/dsp/stream.h
index 4dc3b36d..71cf5656 100644
--- a/core/src/dsp/stream.h
+++ b/core/src/dsp/stream.h
@@ -35,10 +35,13 @@ namespace dsp {
         }
 
         void write(int size) {
-            std::lock_guard<std::mutex> lck(sigMtx);
-            contentSize = size;
-            dataReady = true;
-            cv.notify_all();
+            {
+                std::lock_guard<std::mutex> lck(sigMtx);
+                contentSize = size;
+                dataReady = true;
+                lck.~lock_guard();
+            }
+            cv.notify_one();
         }
 
         int read() {
@@ -50,15 +53,21 @@ namespace dsp {
         }
 
         void flush() {
-            std::lock_guard<std::mutex> lck(sigMtx);
-            dataReady = false;
-            cv.notify_all();
+            {
+                std::lock_guard<std::mutex> lck(sigMtx);
+                dataReady = false;
+                lck.~lock_guard();
+            }
+            cv.notify_one();
         }
 
         void stopReader() {
-            std::lock_guard<std::mutex> lck(sigMtx);
-            readerStop = true;
-            cv.notify_all();
+            {
+                std::lock_guard<std::mutex> lck(sigMtx);
+                readerStop = true;
+                lck.~lock_guard();
+            }
+            cv.notify_one();
         }
 
         void clearReadStop() {
@@ -66,9 +75,12 @@ namespace dsp {
         }
 
         void stopWriter() {
-            std::lock_guard<std::mutex> lck(sigMtx);
-            writerStop = true;
-            cv.notify_all();
+            {
+                std::lock_guard<std::mutex> lck(sigMtx);
+                writerStop = true;
+                lck.~lock_guard();
+            }
+            cv.notify_one();
         }
 
         void clearWriteStop() {
@@ -80,12 +92,12 @@ namespace dsp {
     private:
         void waitReady() {
             std::unique_lock<std::mutex> lck(sigMtx);
-            cv.wait(lck, [this]{ return !dataReady || writerStop; });
+            cv.wait(lck, [this]{ return (!dataReady || writerStop); });
         }
 
         void waitData() {
             std::unique_lock<std::mutex> lck(sigMtx);
-            cv.wait(lck, [this]{ return dataReady || readerStop; });
+            cv.wait(lck, [this]{ return (dataReady || readerStop); });
         }
 
         std::mutex sigMtx;
diff --git a/radio/src/path.cpp b/radio/src/path.cpp
index 1faad6fd..86e3ec79 100644
--- a/radio/src/path.cpp
+++ b/radio/src/path.cpp
@@ -1,5 +1,6 @@
 #include <path.h>
 #include <signal_path/audio.h>
+#include <spdlog/spdlog.h>
 
 SigPath::SigPath() {
     
@@ -45,11 +46,13 @@ void SigPath::init(std::string vfoName, uint64_t sampleRate, int blockSize) {
     ssbDemod.init(vfo->output, 6000, 3000, dsp::SSBDemod::MODE_USB);
 
     audioWin.init(24000, 24000, 200000);
-    audioResamp.init(&demod.out, &audioWin, 200000, 48000);
+    audioResamp.init(&DUMMY_STREAM, &audioWin, 200000, 48000);
     audioWin.setSampleRate(audioResamp.getInterpolation() * 200000);
     audioResamp.updateWindow(&audioWin);
 
     deemp.init(&audioResamp.out, 48000, 50e-6);
+
+    ns.init(&demod.out);
     
     outputSampleRate = audio::registerMonoStream(&deemp.out, vfoName, vfoName, sampleRateChangeHandler, this);
 
@@ -284,6 +287,7 @@ void SigPath::setBandwidth(float bandWidth) {
 void SigPath::start() {
     demod.start();
     audioResamp.start();
-    deemp.start();
+    //deemp.start();
+    ns.start();
     audio::startStream(vfoName);
 }
\ No newline at end of file
diff --git a/radio/src/path.h b/radio/src/path.h
index 21e6a257..d6bb96f6 100644
--- a/radio/src/path.h
+++ b/radio/src/path.h
@@ -63,6 +63,10 @@ private:
     dsp::filter_window::BlackmanWindow audioWin;
     dsp::PolyphaseResampler<float> audioResamp;
 
+    // Debug
+    dsp::NullSink<float> ns;
+    dsp::stream<float> DUMMY_STREAM;
+
     std::string vfoName;
 
     float sampleRate;