Update app.py

app.py

@@ -94,7 +94,7 @@ demo = gr.Blocks()
 mf_transcribe = gr.Interface(
     fn=transcribe,
     inputs=[
-        gr.Audio(type="filepath", optional=True),
+        gr.Audio(type="filepath"),
         gr.Radio(["transcribe", "translate"], label="Task", default="transcribe"),
     ],
     outputs="text",
@@ -112,7 +112,7 @@ mf_transcribe = gr.Interface(
 file_transcribe = gr.Interface(
     fn=transcribe,
     inputs=[
-        gr.Audio(type="filepath", optional=True, label="Audio file"),
+        gr.Audio(type="filepath", label="Audio file"),
         gr.Radio(["transcribe", "translate"], label="Task", default="transcribe"),
     ],
     outputs="text",