Update app.py

app.py

@@ -7,7 +7,6 @@ from scipy.io.wavfile import write
 
 def mel_to_audio(mel_spectrogram):
   # convert the Mel spectrogram image to a grayscale image to avoid the string indices must be integers error
-  mel_spectrogram = np.mean(mel_spectrogram, axis=0)
 
   # convert the Mel spectrogram image to audio using librosa
   # specify the data type of the output array to avoid the same_kind casting error