Test changing to sources instead

app.py

@@ -64,8 +64,8 @@ with gr.Blocks() as demo:
         )
         with gr.Row():
             with gr.Column():
-                audio_mic = gr.Audio(source="microphone", type="filepath", label="Microphone Input")
-                audio_file = gr.Audio(source="upload", type="filepath", label="Audio File Upload")
+                audio_mic = gr.Audio(sources=["microphone"], type="filepath", label="Microphone Input")
+                audio_file = gr.Audio(sources=["upload"], type="filepath", label="Audio File Upload")
             with gr.Column():
                 text_output = gr.Textbox(label="Transcription Output")
         transcribe_btn = gr.Button("Transcribe")