diff --git a/src/beep.c b/src/beep.c
index 3c431bc..1e6e600 100644
--- a/src/beep.c
+++ b/src/beep.c
@@ -191,7 +191,7 @@ int beep(double freq_hz, double duration_sec)
  int up_count = (int)(SAMPLE_RATE * duration_sec);
  
  
-    p1 = p2 = f1 = f2 = 0.02;
+    p1 = p2 = f1 = f2 = SAMPLE_RATE/freq;//0.02;
     for (i = 0; i < up_count; ) {
    for (j = 0; j < FRAMES*2 ; j+=2)
    //for (j = 0; j < up_count*2; j+=2)