Update app.py

Updated app.py code in order to be compliant with Gradio 4.44

app.py

@@ -155,10 +155,7 @@ if __name__ == "__main__":
         with gr.Row():
             ## Input
             with gr.Column():
-                mic_input = gr.Audio(source="microphone", label="Record your own voice")
-                upl_input = gr.Audio(
-                    source="upload", type="filepath", label="Upload a wav file"
-                )
+                src_input = gr.Audio(sources=["microphone", "upload"])
 
                 with gr.Row():
                     clr_btn = gr.Button(value="Clear", variant="secondary")
@@ -187,11 +184,11 @@ if __name__ == "__main__":
         clr_btn.click(
             fn=clear_inputs_and_outputs,
             inputs=[],
-            outputs=[mic_input, upl_input, lbl_output, plt_output],
+            outputs=[src_input, lbl_output, plt_output],
         )
         prd_btn.click(
             fn=predict_accent,
-            inputs=[mic_input, upl_input],
+            inputs=[src_input],
             outputs=[lbl_output, plt_output],
         )