diff --git a/egs_modelscope/asr/conformer/speech_conformer_asr_nat-zh-cn-16k-aishell1-vocab4234-pytorch/demo.py b/egs_modelscope/asr/conformer/speech_conformer_asr_nat-zh-cn-16k-aishell1-vocab4234-pytorch/demo.py
index 87bb65299..ddcae969a 100644
--- a/egs_modelscope/asr/conformer/speech_conformer_asr_nat-zh-cn-16k-aishell1-vocab4234-pytorch/demo.py
+++ b/egs_modelscope/asr/conformer/speech_conformer_asr_nat-zh-cn-16k-aishell1-vocab4234-pytorch/demo.py
@@ -3,7 +3,7 @@ from modelscope.utils.constant import Tasks
 
 if __name__ == '__main__':
     audio_in = 'https://isv-data.oss-cn-hangzhou.aliyuncs.com/ics/MaaS/ASR/test_audio/asr_example_zh.wav'
-    output_dir = None
+    output_dir = "./results"
     inference_pipeline = pipeline(
         task=Tasks.auto_speech_recognition,
         model="damo/speech_conformer_asr_nat-zh-cn-16k-aishell1-vocab4234-pytorch",
diff --git a/egs_modelscope/asr/paraformer/speech_paraformer_asr_nat-zh-cn-16k-aishell1-vocab4234-pytorch/demo.py b/egs_modelscope/asr/paraformer/speech_paraformer_asr_nat-zh-cn-16k-aishell1-vocab4234-pytorch/demo.py
index 2863c1ada..5c8fceb62 100644
--- a/egs_modelscope/asr/paraformer/speech_paraformer_asr_nat-zh-cn-16k-aishell1-vocab4234-pytorch/demo.py
+++ b/egs_modelscope/asr/paraformer/speech_paraformer_asr_nat-zh-cn-16k-aishell1-vocab4234-pytorch/demo.py
@@ -3,7 +3,7 @@ from modelscope.utils.constant import Tasks
 
 if __name__ == '__main__':
     audio_in = 'https://isv-data.oss-cn-hangzhou.aliyuncs.com/ics/MaaS/ASR/test_audio/asr_example_zh.wav'
-    output_dir = None
+    output_dir = "./results"
     inference_pipeline = pipeline(
         task=Tasks.auto_speech_recognition,
         model="damo/speech_paraformer_asr_nat-zh-cn-16k-aishell1-vocab4234-pytorch",
diff --git a/egs_modelscope/asr/paraformerbert/speech_paraformerbert_asr_nat-zh-cn-16k-aishell1-vocab4234-pytorch/infer.py b/egs_modelscope/asr/paraformerbert/speech_paraformerbert_asr_nat-zh-cn-16k-aishell1-vocab4234-pytorch/infer.py
index f4c4fc2fb..ba237dd7f 100644
--- a/egs_modelscope/asr/paraformerbert/speech_paraformerbert_asr_nat-zh-cn-16k-aishell1-vocab4234-pytorch/infer.py
+++ b/egs_modelscope/asr/paraformerbert/speech_paraformerbert_asr_nat-zh-cn-16k-aishell1-vocab4234-pytorch/infer.py
@@ -3,7 +3,7 @@ from modelscope.utils.constant import Tasks
 
 if __name__ == '__main__':
     audio_in = 'https://isv-data.oss-cn-hangzhou.aliyuncs.com/ics/MaaS/ASR/test_audio/asr_example_zh.wav'
-    output_dir = None
+    output_dir = "./results"
     inference_pipeline = pipeline(
         task=Tasks.auto_speech_recognition,
         model="damo/speech_paraformerbert_asr_nat-zh-cn-16k-aishell1-vocab4234-pytorch",
diff --git a/egs_modelscope/asr/uniasr/speech_UniASR_asr_2pass-cn-dialect-16k-vocab8358-tensorflow1-online/infer.py b/egs_modelscope/asr/uniasr/speech_UniASR_asr_2pass-cn-dialect-16k-vocab8358-tensorflow1-online/infer.py
index 936d6d7ba..9c4d6c7cc 100644
--- a/egs_modelscope/asr/uniasr/speech_UniASR_asr_2pass-cn-dialect-16k-vocab8358-tensorflow1-online/infer.py
+++ b/egs_modelscope/asr/uniasr/speech_UniASR_asr_2pass-cn-dialect-16k-vocab8358-tensorflow1-online/infer.py
@@ -3,7 +3,7 @@ from modelscope.utils.constant import Tasks
 
 if __name__ == '__main__':
     audio_in = 'https://isv-data.oss-cn-hangzhou.aliyuncs.com/ics/MaaS/ASR/test_audio/asr_example_zh.wav'
-    output_dir = None
+    output_dir = "./results"
     inference_pipeline = pipeline(
         task=Tasks.auto_speech_recognition,
         model="damo/speech_UniASR_asr_2pass-cn-dialect-16k-vocab8358-tensorflow1-online",
diff --git a/egs_modelscope/asr/uniasr/speech_UniASR_asr_2pass-zh-cn-16k-common-vocab8358-tensorflow1-online/infer.py b/egs_modelscope/asr/uniasr/speech_UniASR_asr_2pass-zh-cn-16k-common-vocab8358-tensorflow1-online/infer.py
index a3e2a002f..f01b1dd9b 100644
--- a/egs_modelscope/asr/uniasr/speech_UniASR_asr_2pass-zh-cn-16k-common-vocab8358-tensorflow1-online/infer.py
+++ b/egs_modelscope/asr/uniasr/speech_UniASR_asr_2pass-zh-cn-16k-common-vocab8358-tensorflow1-online/infer.py
@@ -3,7 +3,7 @@ from modelscope.utils.constant import Tasks
 
 if __name__ == '__main__':
     audio_in = 'https://isv-data.oss-cn-hangzhou.aliyuncs.com/ics/MaaS/ASR/test_audio/asr_example_zh.wav'
-    output_dir = None
+    output_dir = "./results"
     inference_pipeline = pipeline(
         task=Tasks.auto_speech_recognition,
         model="damo/speech_UniASR_asr_2pass-zh-cn-16k-common-vocab8358-tensorflow1-online",
diff --git a/egs_modelscope/asr/uniasr/speech_UniASR_asr_2pass-zh-cn-8k-common-vocab8358-tensorflow1-online/infer.py b/egs_modelscope/asr/uniasr/speech_UniASR_asr_2pass-zh-cn-8k-common-vocab8358-tensorflow1-online/infer.py
index 3ab16ea72..f1006481b 100644
--- a/egs_modelscope/asr/uniasr/speech_UniASR_asr_2pass-zh-cn-8k-common-vocab8358-tensorflow1-online/infer.py
+++ b/egs_modelscope/asr/uniasr/speech_UniASR_asr_2pass-zh-cn-8k-common-vocab8358-tensorflow1-online/infer.py
@@ -3,7 +3,7 @@ from modelscope.utils.constant import Tasks
 
 if __name__ == '__main__':
     audio_in = 'https://isv-data.oss-cn-hangzhou.aliyuncs.com/ics/MaaS/ASR/test_audio/asr_example_zh.wav'
-    output_dir = None
+    output_dir = "./results"
     inference_pipeline = pipeline(
         task=Tasks.auto_speech_recognition,
         model="damo/speech_UniASR_asr_2pass-zh-cn-8k-common-vocab8358-tensorflow1-online",
diff --git a/egs_modelscope/vad/speech_fsmn_vad_zh-cn-16k-common/demo.py b/egs_modelscope/vad/speech_fsmn_vad_zh-cn-16k-common/demo.py
index eded5edca..9fa822839 100644
--- a/egs_modelscope/vad/speech_fsmn_vad_zh-cn-16k-common/demo.py
+++ b/egs_modelscope/vad/speech_fsmn_vad_zh-cn-16k-common/demo.py
@@ -3,7 +3,7 @@ from modelscope.utils.constant import Tasks
 
 if __name__ == '__main__':
     audio_in = 'https://isv-data.oss-cn-hangzhou.aliyuncs.com/ics/MaaS/ASR/test_audio/vad_example.wav'
-    output_dir = None
+    output_dir = "./results"
     inference_pipeline = pipeline(
         task=Tasks.voice_activity_detection,
         model="damo/speech_fsmn_vad_zh-cn-16k-common-pytorch",
diff --git a/egs_modelscope/vad/speech_fsmn_vad_zh-cn-16k-common/demo_online.py b/egs_modelscope/vad/speech_fsmn_vad_zh-cn-16k-common/demo_online.py
index 65693b5f1..16ebd5839 100644
--- a/egs_modelscope/vad/speech_fsmn_vad_zh-cn-16k-common/demo_online.py
+++ b/egs_modelscope/vad/speech_fsmn_vad_zh-cn-16k-common/demo_online.py
@@ -7,7 +7,7 @@ logger.setLevel(logging.CRITICAL)
 import soundfile
 
 if __name__ == '__main__':
-    output_dir = None
+    output_dir = "./results"
     inference_pipeline = pipeline(
         task=Tasks.voice_activity_detection,
         model="damo/speech_fsmn_vad_zh-cn-16k-common-pytorch",
diff --git a/egs_modelscope/vad/speech_fsmn_vad_zh-cn-8k-common/demo.py b/egs_modelscope/vad/speech_fsmn_vad_zh-cn-8k-common/demo.py
index 33be5059a..6bd491bc9 100644
--- a/egs_modelscope/vad/speech_fsmn_vad_zh-cn-8k-common/demo.py
+++ b/egs_modelscope/vad/speech_fsmn_vad_zh-cn-8k-common/demo.py
@@ -3,7 +3,7 @@ from modelscope.utils.constant import Tasks
 
 if __name__ == '__main__':
     audio_in = 'https://isv-data.oss-cn-hangzhou.aliyuncs.com/ics/MaaS/ASR/test_audio/vad_example_8k.wav'
-    output_dir = None
+    output_dir = "./results"
     inference_pipeline = pipeline(
         task=Tasks.voice_activity_detection,
         model="damo/speech_fsmn_vad_zh-cn-8k-common",
diff --git a/egs_modelscope/vad/speech_fsmn_vad_zh-cn-8k-common/demo_online.py b/egs_modelscope/vad/speech_fsmn_vad_zh-cn-8k-common/demo_online.py
index ec5c50281..d777089db 100644
--- a/egs_modelscope/vad/speech_fsmn_vad_zh-cn-8k-common/demo_online.py
+++ b/egs_modelscope/vad/speech_fsmn_vad_zh-cn-8k-common/demo_online.py
@@ -7,7 +7,7 @@ logger.setLevel(logging.CRITICAL)
 import soundfile
 
 if __name__ == '__main__':
-    output_dir = None
+    output_dir = "./results"
     inference_pipeline = pipeline(
         task=Tasks.voice_activity_detection,
         model="damo/speech_fsmn_vad_zh-cn-8k-common",