diff --git a/takway/clients/web_socket_client_utils.py b/takway/clients/web_socket_client_utils.py
index 202ed3c..6b7ef79 100644
--- a/takway/clients/web_socket_client_utils.py
+++ b/takway/clients/web_socket_client_utils.py
@@ -425,6 +425,7 @@ class WebSocketClinet:
         print("Audio play process started.")
         audio_list = []
         while True:
+            print("wait for audio data.")
             item = self.audio_play_queue.get()
             
             # 唤醒状态