diff --git a/funasr/runtime/python/onnxruntime/funasr_onnx/utils/e2e_vad.py b/funasr/runtime/python/onnxruntime/funasr_onnx/utils/e2e_vad.py
index 029f5296e..b5b3312ad 100644
--- a/funasr/runtime/python/onnxruntime/funasr_onnx/utils/e2e_vad.py
+++ b/funasr/runtime/python/onnxruntime/funasr_onnx/utils/e2e_vad.py
@@ -1,3 +1,7 @@
+# -*- encoding: utf-8 -*-
+# Copyright FunASR (https://github.com/alibaba-damo-academy/FunASR). All Rights Reserved.
+#  MIT License  (https://opensource.org/licenses/MIT)
+
 from enum import Enum
 from typing import List, Tuple, Dict, Any
 
@@ -189,6 +193,11 @@ class WindowDetector(object):
 
 
 class E2EVadModel():
+    """
+    Author: Speech Lab of DAMO Academy, Alibaba Group
+    Deep-FSMN for Large Vocabulary Continuous Speech Recognition
+    https://arxiv.org/abs/1803.05030
+    """
     def __init__(self, vad_post_args: Dict[str, Any]):
         super(E2EVadModel, self).__init__()
         self.vad_opts = VADXOptions(**vad_post_args)
diff --git a/funasr/runtime/python/onnxruntime/funasr_onnx/utils/postprocess_utils.py b/funasr/runtime/python/onnxruntime/funasr_onnx/utils/postprocess_utils.py
index 575fb90dd..c005fc985 100644
--- a/funasr/runtime/python/onnxruntime/funasr_onnx/utils/postprocess_utils.py
+++ b/funasr/runtime/python/onnxruntime/funasr_onnx/utils/postprocess_utils.py
@@ -1,4 +1,6 @@
-# Copyright (c) Alibaba, Inc. and its affiliates.
+# -*- encoding: utf-8 -*-
+# Copyright FunASR (https://github.com/alibaba-damo-academy/FunASR). All Rights Reserved.
+#  MIT License  (https://opensource.org/licenses/MIT)
 
 import string
 import logging
diff --git a/funasr/runtime/python/onnxruntime/funasr_onnx/utils/timestamp_utils.py b/funasr/runtime/python/onnxruntime/funasr_onnx/utils/timestamp_utils.py
index 3a01812e8..a9ec8cc1b 100644
--- a/funasr/runtime/python/onnxruntime/funasr_onnx/utils/timestamp_utils.py
+++ b/funasr/runtime/python/onnxruntime/funasr_onnx/utils/timestamp_utils.py
@@ -1,3 +1,7 @@
+# -*- encoding: utf-8 -*-
+# Copyright FunASR (https://github.com/alibaba-damo-academy/FunASR). All Rights Reserved.
+#  MIT License  (https://opensource.org/licenses/MIT)
+
 import numpy as np