diff --git a/modelscope/pipeline_inputs.py b/modelscope/pipeline_inputs.py
index de9814a7..2b14c278 100644
--- a/modelscope/pipeline_inputs.py
+++ b/modelscope/pipeline_inputs.py
@@ -28,7 +28,7 @@ class InputType(object):
 INPUT_TYPE = {
     InputType.IMAGE: (str, np.ndarray, Image.Image),
     InputType.TEXT: str,
-    InputType.AUDIO: (str, np.ndarray),
+    InputType.AUDIO: (str, bytes, np.ndarray),
     InputType.VIDEO: (str, np.ndarray, cv2.VideoCapture),
     InputType.BOX: (list, np.ndarray),
     InputType.DICT: (dict, type(None)),