adding button for download/save

app.py

@@ -122,4 +122,7 @@ if apply_stereo or reverse or change_speed or pitch_shift or add_reverb:
         st_state.augmented_audio = scipy.signal.fftconvolve(st_state.augmented_audio, reverb_ir)
 
     # Play the processed audio
-    st.audio(st_state.augmented_audio, format="audio/wav", sample_rate=sample_rate, start_time=0)
+    st.audio(st_state.augmented_audio, format="audio/wav", sample_rate=sample_rate, start_time=0)
+
+if st.button("Download/Save"):
+    st.markdown("[Download Processed Audio](https://songlabai.com/subcribe/)")