diff --git a/src/fft.c b/src/fft.c
index 1082123..0436c24 100644
--- a/src/fft.c
+++ b/src/fft.c
@@ -156,7 +156,7 @@
     int amp = 0;
     int first = 0;
     int last = 1;
-    int div = 43;
+    int div = 43/(N_SAMPLES/1024); // 1024 samples -> 43 reads / second
     double f = bf;
 
     while(last <= N_SAMPLES/2) {
diff --git a/src/settings.h b/src/settings.h
index 15723c3..96209a1 100644
--- a/src/settings.h
+++ b/src/settings.h
@@ -6,7 +6,7 @@
 
 // number of samples
 // (POWER OF 2)
-#define N_SAMPLES 1024
+#define N_SAMPLES 2048
 
 // if adaptive sampling should be used
 // (adjust N_SAMPLES to sample rate of current song)