Update app.py

app.py

@@ -9,6 +9,7 @@ from keras.layers import *
 from midi2audio import FluidSynth
 import shutil
 import pretty_midi
+import soundfile as sf  
 
 def midi_to_audio(midi_file, output_file):
     # Load the MIDI file
@@ -18,7 +19,7 @@ def midi_to_audio(midi_file, output_file):
     audio_data = midi_data.synthesize()
     
     # Save to a WAV file
-    pretty_midi.write(output_file, audio_data, fs=44100)
+    sf.write(output_file, audio_data, 44100)
 
 ####################### Music Generation Functions #######################
 def generate(seq_len,x):