diff --git a/.fm_op_kernel.cpp.swp b/.fm_op_kernel.cpp.swp
new file mode 100644
index 0000000..e9aa84b
Binary files /dev/null and b/.fm_op_kernel.cpp.swp differ
diff --git a/dexed.cpp b/dexed.cpp
index 6f4a67c..51dec11 100644
--- a/dexed.cpp
+++ b/dexed.cpp
@@ -144,7 +144,7 @@ void Dexed::getSamples(uint16_t n_samples, int16_t* buffer)
           int32_t val = audiobuf.get()[j];
           val = val >> 4;
 #ifdef USE_TEENSY_DSP
-          int32_t clip_val=signed_saturate_rshift(32,24,9);
+          int32_t clip_val=signed_saturate_rshift(val,24,9);
 #else
           int32_t clip_val = val < -(1 << 24) ? 0x8000 : val >= (1 << 24) ? 0x7fff : val >> 9;
 #endif
diff --git a/fm_op_kernel.cpp b/fm_op_kernel.cpp
index bf962ca..d3bd0cf 100644
--- a/fm_op_kernel.cpp
+++ b/fm_op_kernel.cpp
@@ -25,8 +25,9 @@
 #include "synth.h"
 #include "sin.h"
 #include "fm_op_kernel.h"
+#include "config.h"
 
-#ifdef HAVE_NEONx
+#ifdef HAVE_NEON
 static bool hasNeon() {
   return true;
   return (android_getCpuFeatures() & ANDROID_CPU_ARM_FEATURE_NEON) != 0;
@@ -36,7 +37,7 @@ extern "C"
 void neon_fm_kernel(const int *in, const int *busin, int *out, int count,
   int32_t phase0, int32_t freq, int32_t gain1, int32_t dgain);
 
-const int32_t __attribute__ ((aligned(16))) zeros[N] = {0};
+const int32_t __attribute__ ((aligned(16))) zeros[_N_] = {0};
 
 #else
 static bool hasNeon() {