UPDATE

app.py

@@ -29,7 +29,7 @@ def process_audio(input_file,
 iface = gr.Interface(
     fn=process_audio,
     inputs=[
-        gr.Audio(label="Upload your music file"),
+        gr.Audio(label="Upload your music file", type="filepath"),
         gr.Checkbox(label="Apply 8D effect"),
         gr.Slider(label="8D - Pan Boundary", minimum=0, maximum=100, value=50),
         gr.Slider(label="8D - Jump Percentage", minimum=1, maximum=100, value=5),
@@ -44,7 +44,7 @@ iface = gr.Interface(
         gr.Slider(label="Reverb - Wet Level", minimum=0, maximum=1, step=0.1, value=0.3),
         gr.Slider(label="Reverb - Dry Level", minimum=0, maximum=1, step=0.1, value=0.8),
     ],
-    outputs=gr.Audio(label="Download processed music"),
+    outputs=gr.Audio(label="Download processed music", type="filepath"),
     title="Audio Fusion"
 )