Update accelerate

Signed-off-by: Jael Gu <mengjia.gu@zilliz.com>

nn_fingerprint.py

@@ -28,7 +28,12 @@ from towhee import register
 from towhee.types.audio_frame import AudioFrame
 from towhee.models.nnfp import NNFp
 from towhee.models.utils.audio_preprocess import preprocess_wav, MelSpec
-# from towhee.dc2 import accelerate
+
+try:
+    from towhee import accelerate
+except:
+    def accelerate(func):
+        return func
 
 from .configs import default_params, hop25_params, distill_params
 
@@ -81,6 +86,7 @@ class NNFingerprint(NNOperator):
     """
     Audio embedding operator using Neural Network Fingerprint
     """
+
     def __init__(self,
                  model_name: str = 'nnfp_default',
                  model_path: str = None,