diff --git a/core/src/dsp/channel/rx_vfo.h b/core/src/dsp/channel/rx_vfo.h
index 556c1f9b..9bd933ea 100644
--- a/core/src/dsp/channel/rx_vfo.h
+++ b/core/src/dsp/channel/rx_vfo.h
@@ -92,13 +92,13 @@ namespace dsp::channel {
         }
 
         int run() {
-            int count = _in->read();
+            int count = base_type::_in->read();
             if (count < 0) { return -1; }
 
-            int outCount = process(count, _in->readBuf, out.writeBuf);
+            int outCount = process(count, base_type::_in->readBuf, out.writeBuf);
 
             // Swap if some data was generated
-            _in->flush();
+            base_type::_in->flush();
             if (outCount) {
                 if (!out.swap(outCount)) { return -1; }
             }
diff --git a/core/src/dsp/filter/deephasis.h b/core/src/dsp/filter/deephasis.h
index daabae07..5a6df4df 100644
--- a/core/src/dsp/filter/deephasis.h
+++ b/core/src/dsp/filter/deephasis.h
@@ -79,7 +79,7 @@ namespace dsp::filter {
         //DEFAULT_PROC_RUN();
 
         int run() {
-            int count = _in->read();
+            int count = base_type::_in->read();
             if (count < 0) { return -1; }
             process(count, base_type::_in->readBuf, base_type::out.writeBuf);
             base_type::_in->flush();
diff --git a/core/src/dsp/noise_reduction/squelch.h b/core/src/dsp/noise_reduction/squelch.h
index f28e7f43..a663bcc2 100644
--- a/core/src/dsp/noise_reduction/squelch.h
+++ b/core/src/dsp/noise_reduction/squelch.h
@@ -40,7 +40,7 @@ namespace dsp::noise_reduction {
         //DEFAULT_PROC_RUN();
 
         int run() {
-            int count = _in->read();
+            int count = base_type::_in->read();
             if (count < 0) { return -1; }
             process(count, base_type::_in->readBuf, base_type::out.writeBuf);
             base_type::_in->flush();