Update app.py

app.py

@@ -166,7 +166,7 @@ def main():
             
             #RuntimeError: Numpy is not available
             wav = torch.from_numpy(wav3) #/32768.0
-            wav = audio.unsqueeze(0).unsqueeze(0)
+            wav = wav.unsqueeze(0).unsqueeze(0)
             st.markdown("Before unsqueeze mp3")
             st.markdown(wav)