diff --git a/radio/FirComplex.hpp b/radio/FirComplex.hpp
index acc3b6b..70f3e98 100644
--- a/radio/FirComplex.hpp
+++ b/radio/FirComplex.hpp
@@ -30,15 +30,12 @@ public:
 	{
 		m_numTaps = numTaps;
 		m_x.resize(numTaps);
-//		m_x.fill(ComplexScalar(0,0));
+		m_x.fill(ComplexScalar(0,0));
 	}
 	
 	void feed(ComplexScalar const &x)
 	{
-//		m_x.reverse().head(m_numTaps-1) = m_x.reverse().tail(m_numTaps-1);
-		
 		m_x.reverse() << m_x.head(m_numTaps-1).reverse(), x;
-//		m_x(0) = x;
 	}
 
 	ComplexScalar process(CVec const &coeff)
@@ -46,6 +43,11 @@ public:
 		return m_x.transpose() * coeff.conjugate();
 	}
 	
+	ComplexScalar processReal(RVec const &coeff)
+	{
+		return m_x.transpose() * coeff;
+	}
+
 protected:
 	uint32_t m_numTaps;
 	CVec m_x;