diff --git a/whisper/model.py b/whisper/model.py
index b646f7d..692cba0 100644
--- a/whisper/model.py
+++ b/whisper/model.py
@@ -206,7 +206,7 @@ class AudioEncoderTokenPruner():
 
 class AudioEncoder(nn.Module):
     def __init__(
-        self, n_mels: int, n_ctx: int, n_state: int, n_head: int, n_layer: int, ext_feat_flag: bool = False, cut_region: Tuple[int, int]=[750, 1000]
+        self, n_mels: int, n_ctx: int, n_state: int, n_head: int, n_layer: int, ext_feat_flag: bool = False, cut_region: Tuple[int, int]=None
     ):
         super().__init__()
         self.conv1 = Conv1d(n_mels, n_state, kernel_size=3, padding=1)
@@ -301,6 +301,7 @@ class Whisper(nn.Module):
             self.dims.n_audio_head,
             self.dims.n_audio_layer,
             ext_feat_flag=ext_feat_flag,
+            cut_region=cut_region,
         )
         self.decoder = TextDecoder(
             self.dims.n_vocab,