Update app.py

app.py

@@ -46,9 +46,9 @@ def inference(audio_file, model_name, two_stems, mp3, mp3_bitrate):
 iface = gr.Interface(
     fn=inference,
     inputs=[
-        gr.Audio(type="filepath"),  # Remove source="upload"
+        gr.Audio(type="filepath"),
         gr.Dropdown(["htdemucs", "htdemucs_ft", "htdemucs_6s", "hdemucs_mmi", "mdx", "mdx_extra", "mdx_q", "mdx_extra_q"], label="Model Name"),
-        gr.Dropdown(["vocals", "drums", "bass", "other"], label="Two Stems (Optional)", optional=True),
+        gr.Dropdown(["vocals", "drums", "bass", "other"], label="Two Stems (Optional)"),  # Remove optional=True
         gr.Checkbox(label="Save as MP3"),
         gr.Slider(128, 320, step=32, label="MP3 Bitrate", visible=False),
     ],