Update app.py

app.py

@@ -1,7 +1,7 @@
 import gradio as gr
 import numpy as np
 import librosa
-import soundfile as sf
+from scipy.io.wavfile import write
 
 # import the librosa library for converting a Mel spectrogram image to audio
 
@@ -16,7 +16,7 @@ def mel_to_audio(mel_spectrogram):
   output = 'output.wav'
   sample = 44100
   print (output)
-  sf.write(output, audio, sample)
+  write(output, sample, audio.astype(np.int16))
   return output
 
 # create the gradio app