diff --git a/.gitignore b/.gitignore
index 7e592cfd2..94e2905f3 100644
--- a/.gitignore
+++ b/.gitignore
@@ -161,3 +161,4 @@ examples/nb/
 workspace/*
 *.mmd
 tmp
+output.wav
diff --git a/metagpt/actions/azure_tts.py b/metagpt/actions/azure_tts.py
index 3220cc32e..c01556303 100644
--- a/metagpt/actions/azure_tts.py
+++ b/metagpt/actions/azure_tts.py
@@ -17,8 +17,8 @@ class AzureTTS(Action):
 
     # 参数参考：https://learn.microsoft.com/zh-cn/azure/cognitive-services/speech-service/language-support?tabs=tts#voice-styles-and-roles
     def synthesize_speech(self, lang, voice, role, text, output_file):
-        subscription_key = self.config.get('SUBSCRIPTION_KEY')
-        region = self.config.get('REGION')
+        subscription_key = self.config.get('AZURE_TTS_SUBSCRIPTION_KEY')
+        region = self.config.get('AZURE_TTS_REGION')
         speech_config = SpeechConfig(
             subscription=subscription_key, region=region)
 
diff --git a/tests/metagpt/actions/test_azure_tts.py b/tests/metagpt/actions/test_azure_tts.py
index 6fea0daf3..b5a333af2 100644
--- a/tests/metagpt/actions/test_azure_tts.py
+++ b/tests/metagpt/actions/test_azure_tts.py
@@ -17,5 +17,5 @@ def test_azure_tts():
         "你好，我是卡卡",
         "output.wav")
 
-    # 运行需要先配置SUBSCRIPTION_KEY
+    # 运行需要先配置 SUBSCRIPTION_KEY
     # TODO: 这里如果要检验，还要额外加上对应的asr，才能确保前后生成是接近一致的，但现在还没有