diff --git a/src/fft.c b/src/fft.c
index 256d5ec..e2fe23a 100644
--- a/src/fft.c
+++ b/src/fft.c
@@ -119,8 +119,8 @@
 	int i = 0;
     int j = 0;
     int amp = 0;
-    int first = 1;
-    int last = 2;
+    int first = 0;
+    int last = 1;
     int div = 43;
     double f = bf;
 
@@ -150,6 +150,7 @@
 
         amp = 0;
         i += FOCUS;
+
         if(i > max) break;
         f = next_bfreq(f, oratio);
     }