Update app.py

app.py

@@ -13,7 +13,7 @@ import os
 from huggingface_hub import hf_hub_download
 from transformers import AutoFeatureExtractor, WhisperModel
 from torch.nn.utils import parametrizations
-from scipy.signal import butter, lfilter
+from scipy.signal import butter, filtfilt
 
 from modules.commons import build_model, load_checkpoint, recursive_munch
 from modules.campplus.DTDNN import CAMPPlus