diff --git a/api/controllers/service_api/app/audio.py b/api/controllers/service_api/app/audio.py
index 60ca2171d52dd9..f6cad501f09264 100644
--- a/api/controllers/service_api/app/audio.py
+++ b/api/controllers/service_api/app/audio.py
@@ -44,7 +44,7 @@ def post(self, app_model: App, end_user: EndUser):
             response = AudioService.transcript_asr(
                 tenant_id=app_model.tenant_id,
                 file=file,
-                end_user=end_user
+                end_user=end_user.get_id()
             )
 
             return response
@@ -75,7 +75,7 @@ def post(self, app_model: App, end_user: EndUser):
 
 
 class TextApi(Resource):
-    @validate_app_token(fetch_user_arg=FetchUserArg(fetch_from=WhereisUserArg.JSON, required=True))
+    @validate_app_token(fetch_user_arg=FetchUserArg(fetch_from=WhereisUserArg.JSON))
     def post(self, app_model: App, end_user: EndUser):
         parser = reqparse.RequestParser()
         parser.add_argument('text', type=str, required=True, nullable=False, location='json')
@@ -86,8 +86,8 @@ def post(self, app_model: App, end_user: EndUser):
             response = AudioService.transcript_tts(
                 tenant_id=app_model.tenant_id,
                 text=args['text'],
-                end_user=end_user,
-                voice=args['voice'] if args['voice'] else app_model.app_model_config.text_to_speech_dict.get('voice'),
+                end_user=end_user.get_id(),
+                voice=app_model.app_model_config.text_to_speech_dict.get('voice'),
                 streaming=args['streaming']
             )
 
diff --git a/api/models/model.py b/api/models/model.py
index d642d9a3978655..8776f896730a07 100644
--- a/api/models/model.py
+++ b/api/models/model.py
@@ -726,6 +726,7 @@ class MessageFile(db.Model):
     created_by = db.Column(UUID, nullable=False)
     created_at = db.Column(db.DateTime, nullable=False, server_default=db.text('CURRENT_TIMESTAMP(0)'))
 
+
 class MessageAnnotation(db.Model):
     __tablename__ = 'message_annotations'
     __table_args__ = (