diff --git a/radio/tests/interpolation/farrow/test.cpp b/radio/tests/interpolation/farrow/test.cpp
index 65ca65d..ffbd036 100644
--- a/radio/tests/interpolation/farrow/test.cpp
+++ b/radio/tests/interpolation/farrow/test.cpp
@@ -120,7 +120,7 @@ class TimingGeneratorGardner : public Interpolation::TimingGenerator
 		if (is_time)
 		{
 			// @1 x symbolrate
-			cout << "Vd = " << vd << ", omega = " << m_omega << ", mu = " << m_mu << endl;
+			cout << "Vd = " << vd << ", omega = " << m_omega << ", mu = " << getMu() << endl;
 			m_omega = LeadLagProcess(&loop_filter_str, &str_loopfilter_coeff, vd);
 		}
 		is_time = not is_time;
@@ -143,8 +143,7 @@ void test()
 	// Setup IQ data
 	WAVEHEADER header;
 //	CVec iq_in = wavLoad("m2_12k_12k_i_q_short_2sps.wav", header);
-//	CVec iq_in = wavLoad("sine_12k_ef_1_percent.wav", header);
-	CVec iq_in = wavLoad("sine_12k_s.wav", header);
+	CVec iq_in = wavLoad("sine.wav", header);
 	CVec iq_out;
 	iq_out.reserve(8*iq_in.size());
 
@@ -163,14 +162,15 @@ void test()
 		n += numFed;
 		remain -= numFed;
 
-		farrow.process_new(timingGenerator);
-		while(farrow.getOutputBuffer().len())
+		farrow.process(timingGenerator);
+		Processor::Buffer<ComplexScalar>& buf_farrow = farrow.getOutputBuffer();
+		while(buf_farrow.len())
 		{
-			size_t size = std::min(BLOCKSIZE, farrow.getOutputBuffer().len());
+			size_t size = std::min(BLOCKSIZE, buf_farrow.len());
 			iq_out.resize(k+size);
 			for (size_t i=0; i < size; i++)
 			{
-				iq_out[k++] = farrow.getOutputBuffer().readAt(0);
+				iq_out[k++] = buf_farrow.readAt(0);
 			}
 		}
 	}