diff --git a/README.md b/README.md
index acbe962..7c4ecf7 100644
--- a/README.md
+++ b/README.md
@@ -21,7 +21,7 @@ from towhee import dc
 
 dc.glob('test.wav')
   .audio_decode()
-  .time_window(range=30)
+  .time_window(range=10)
   .audio_embedding.vggish()
   .show()
 ```