diff --git a/measurement.py b/measurement.py
index 277b9df..ae84053 100644
--- a/measurement.py
+++ b/measurement.py
@@ -123,7 +123,7 @@
 
     # Wait for stop
     print("measurement start.")
-    recode_dulation = 2  # sec
+    recode_dulation = 15  # sec
     for i in range(recode_dulation):
         time.sleep(1)
         print(i + 1, "/", recode_dulation, "sec")