add an invisible textbox

app.py

@@ -149,6 +149,7 @@ You can upload your own samples, or try the quick examples provided below.
 ## 🎯 Quick Examples
 """)    
     
+    display_caption = gr.Textbox(visible=False)
     with gr.Tabs():
         with gr.Tab("VITS Generated Speech"):
             gr.Markdown("| 🎧 Audio | 📝 Caption |\n|:--:|:--|")
@@ -165,7 +166,7 @@ You can upload your own samples, or try the quick examples provided below.
                     ["wav/vits/9.wav", "Several church bells ringing"],
                     ["wav/vits/10.wav", "A telephone rings with bell sounds"]
                 ],
-                inputs=[input_audio, _],
+                inputs=[input_audio, display_caption],
                 label="Click examples below to try!",
                 cache_examples = False, 
                 examples_per_page = 5,
@@ -186,7 +187,7 @@ You can upload your own samples, or try the quick examples provided below.
                     ["wav/human/9.wav", "Several church bells ringing"],
                     ["wav/human/10.wav", "A telephone rings with bell sounds"]
                 ],
-                inputs=[input_audio, _],
+                inputs=[input_audio, display_caption],
                 label="Click examples below to try!",
                 cache_examples = False, 
                 examples_per_page = 5,