diff --git a/paddlespeech/cli/asr/infer.py b/paddlespeech/cli/asr/infer.py
index 24839a89..df7c5835 100644
--- a/paddlespeech/cli/asr/infer.py
+++ b/paddlespeech/cli/asr/infer.py
@@ -33,8 +33,8 @@ from ..log import logger
 from ..utils import CLI_TIMER
 from ..utils import stats_wrapper
 from ..utils import timer_register
+from paddlespeech.s2t.audio.transformation import Transformation
 from paddlespeech.s2t.frontend.featurizer.text_featurizer import TextFeaturizer
-from paddlespeech.s2t.transform.transformation import Transformation
 from paddlespeech.s2t.utils.utility import UpdateConfig
 
 __all__ = ['ASRExecutor']
diff --git a/paddlespeech/s2t/exps/u2/bin/test_wav.py b/paddlespeech/s2t/exps/u2/bin/test_wav.py
index 86c3db89..887ec7a6 100644
--- a/paddlespeech/s2t/exps/u2/bin/test_wav.py
+++ b/paddlespeech/s2t/exps/u2/bin/test_wav.py
@@ -20,10 +20,10 @@ import paddle
 import soundfile
 from yacs.config import CfgNode
 
+from paddlespeech.audio.transform.transformation import Transformation
 from paddlespeech.s2t.frontend.featurizer.text_featurizer import TextFeaturizer
 from paddlespeech.s2t.models.u2 import U2Model
 from paddlespeech.s2t.training.cli import default_argument_parser
-from paddlespeech.s2t.transform.transformation import Transformation
 from paddlespeech.s2t.utils.log import Log
 from paddlespeech.s2t.utils.utility import UpdateConfig
 logger = Log(__name__).getlog()
diff --git a/paddlespeech/server/engine/asr/online/onnx/asr_engine.py b/paddlespeech/server/engine/asr/online/onnx/asr_engine.py
index 06793164..cb743ea2 100644
--- a/paddlespeech/server/engine/asr/online/onnx/asr_engine.py
+++ b/paddlespeech/server/engine/asr/online/onnx/asr_engine.py
@@ -26,7 +26,7 @@ from paddlespeech.cli.log import logger
 from paddlespeech.resource import CommonTaskResource
 from paddlespeech.s2t.frontend.featurizer.text_featurizer import TextFeaturizer
 from paddlespeech.s2t.modules.ctc import CTCDecoder
-from paddlespeech.s2t.transform.transformation import Transformation
+from paddlespeech.audio.transform.transformation import Transformation
 from paddlespeech.s2t.utils.utility import UpdateConfig
 from paddlespeech.server.engine.base_engine import BaseEngine
 from paddlespeech.server.utils import onnx_infer
diff --git a/paddlespeech/server/engine/asr/online/paddleinference/asr_engine.py b/paddlespeech/server/engine/asr/online/paddleinference/asr_engine.py
index efb726aa..bcd0fa7f 100644
--- a/paddlespeech/server/engine/asr/online/paddleinference/asr_engine.py
+++ b/paddlespeech/server/engine/asr/online/paddleinference/asr_engine.py
@@ -24,9 +24,9 @@ from yacs.config import CfgNode
 from paddlespeech.cli.asr.infer import ASRExecutor
 from paddlespeech.cli.log import logger
 from paddlespeech.resource import CommonTaskResource
+from paddlespeech.audio.transform.transformation import Transformation
 from paddlespeech.s2t.frontend.featurizer.text_featurizer import TextFeaturizer
 from paddlespeech.s2t.modules.ctc import CTCDecoder
-from paddlespeech.s2t.transform.transformation import Transformation
 from paddlespeech.s2t.utils.utility import UpdateConfig
 from paddlespeech.server.engine.base_engine import BaseEngine
 from paddlespeech.server.utils.paddle_predictor import init_predictor
diff --git a/paddlespeech/server/engine/asr/online/python/asr_engine.py b/paddlespeech/server/engine/asr/online/python/asr_engine.py
index daa9fc50..2ffbba99 100644
--- a/paddlespeech/server/engine/asr/online/python/asr_engine.py
+++ b/paddlespeech/server/engine/asr/online/python/asr_engine.py
@@ -24,9 +24,9 @@ from yacs.config import CfgNode
 from paddlespeech.cli.asr.infer import ASRExecutor
 from paddlespeech.cli.log import logger
 from paddlespeech.resource import CommonTaskResource
+from paddlespeech.audio.transform.transformation import Transformation
 from paddlespeech.s2t.frontend.featurizer.text_featurizer import TextFeaturizer
 from paddlespeech.s2t.modules.ctc import CTCDecoder
-from paddlespeech.s2t.transform.transformation import Transformation
 from paddlespeech.s2t.utils.tensor_utils import add_sos_eos
 from paddlespeech.s2t.utils.tensor_utils import pad_sequence
 from paddlespeech.s2t.utils.utility import UpdateConfig