diff --git a/src/dump_data.c b/src/dump_data.c
index cd936cf..4e8d3c4 100644
--- a/src/dump_data.c
+++ b/src/dump_data.c
@@ -453,6 +453,7 @@ int main(int argc, char **argv) {
 	assert(pitch_index < 2*PITCH_MAX_PERIOD);
 	assert(pitch_index >= 2*PITCH_MIN_PERIOD);
         features[2*NB_BANDS] = 0.01*(pitch_index-200);
+	//fprintf(stderr, "count: %d [36] %f pitch_index: %d\n", count, features[36], pitch_index);
         if (c2voicing_en) features[2*NB_BANDS+1] = voicing;
     }
     fwrite(features, sizeof(float), NB_FEATURES, ffeat);
diff --git a/src/lpcnet.c b/src/lpcnet.c
index adf7627..9f3f059 100644
--- a/src/lpcnet.c
+++ b/src/lpcnet.c
@@ -163,7 +163,7 @@ void lpcnet_synthesize(LPCNetState *lpcnet, short *output, float *features, int
 
     if (lpcnet->pitch_embedding) {
 	pitch = (int)floor(.1 + 50*features[36]+100);
-	//fprintf(stderr, "pitch: %d\n", pitch);
+	//fprintf(stderr, "count: %d [36] %f pitch: %d\n", lpcnet->frame_count, features[36], pitch);
 	assert(pitch >=0); assert(pitch <= 255);    
 	/* latest networks (using the codec 2 pitch estimator) are trained
 	   with pitch estimates between 40 and 255, but due to the pitch
diff --git a/unittest/test_core_nn.sh b/unittest/test_core_nn.sh
index 392c897..cd955c7 100755
--- a/unittest/test_core_nn.sh
+++ b/unittest/test_core_nn.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/bin/bash -x
 # test_core_nn.sh
 #
 
@@ -60,7 +60,7 @@ if [ ! -z $SYNTH_mag ]; then
     ../build_linux/src/dump_data --mag --test --c2pitch ../wav/c01_01.wav c01_01.f32
     diff c01_01_mag.f32 c01_01.f32 || { echo "ERROR in synth .f32 output! Exiting..."; exit 1; }
     echo "mag .f32 OK"
-    ../build_linux/src/test_lpcnet --mag -n lpcnet_190804a.f32 c01_01.f32 c01_01_out.raw
+    ../build_linux/src/test_lpcnet --mag 1 -n lpcnet_190804a.f32 c01_01.f32 c01_01_out.raw
     diff c01_01_190804a_targ.raw c01_01_out.raw || { echo "ERROR in synth .raw output! Exiting..."; exit 1; }
     echo "mag .raw OK"
 fi