fix bug

app.py

@@ -1,8 +1,8 @@
-import os
 import json
 from tqdm import tqdm
 from copy import deepcopy
 
+import soundfile as sf
 import numpy as np
 import gradio as gr
 import torch
@@ -12,8 +12,6 @@ random.seed(0)
 torch.manual_seed(0)
 np.random.seed(0)
 
-from scipy.io.wavfile import write as wavwrite
-
 from util import print_size, sampling
 from network import CleanUNet
 import torchaudio
@@ -82,7 +80,7 @@ def denoise(filename, ckpt_path = CHECKPOINT):
 
     all_audio = np.concatenate(all_audio, axis=0)
     print("saved to:", new_file_name)
-    wavwrite(new_file_name, 32000, all_audio.squeeze())
+    sf.write(new_file_name, all_audio.squeeze(), 32000)
 
     return new_file_name