diff --git a/README.md b/README.md
index 3246328..997946b 100644
--- a/README.md
+++ b/README.md
@@ -178,7 +178,7 @@
 
 * The timer beeps twice each time you start- or stop the timer.
 
-* The timer provides a long single beep at each virtual 30 second
+* The timer provides a single beep at each virtual 30 second
   mark.
 
 * In film or paper correction profiles, if the temperature
diff --git a/devtimer.py b/devtimer.py
index c78a81f..1653de8 100755
--- a/devtimer.py
+++ b/devtimer.py
@@ -326,7 +326,7 @@
         # Beep periodically
 
         if run_timer.RUNNING and not elapsed_time % BEEP_INTERVAL:
-            Thread(name="Beep", target=beep, args=[1, 0.8]).start()
+            Thread(name="Beep", target=beep, args=[1, 0.30]).start()
 
         # If we're not running, don't update elapsed time