Update app.py

app.py

@@ -93,7 +93,7 @@ demo = gr.Blocks()
 mf_transcribe = gr.Interface(
     fn=transcribe,
     inputs=[
-        gr.components.Audio(sources=["microphone"], type="filepath", optional=True),
+        gr.components.Audio(sources=["microphone"], type="filepath"),
         gr.components.Radio(["transcribe", "translate"], label="Task", default="transcribe"),
     ],
     outputs="text",
@@ -111,7 +111,7 @@ mf_transcribe = gr.Interface(
 file_transcribe = gr.Interface(
     fn=transcribe,
     inputs=[
-        gr.components.Audio(sources=["upload"], type="filepath", optional=True, label="Audio file"),
+        gr.components.Audio(sources=["upload"], type="filepath", label="Audio file"),
         gr.components.Radio(["transcribe", "translate"], label="Task", default="transcribe"),
     ],
     outputs="text",