Fix gr.Audio help parameter error

app.py

@@ -321,11 +321,12 @@ with gr.Blocks(title="Arabic TTS - Spark", theme=gr.themes.Soft()) as demo:
                 info="⚠️ Text must include diacritics (تشكيل). Use GPT/Claude to add them."
             )
             
+            gr.Markdown("**🎵 Reference Audio (Default Provided)**")
+            gr.Markdown("*Upload custom reference audio or use the default (WAV format, 5-30 seconds)*")
             reference_audio = gr.Audio(
-                label="🎵 Reference Audio (Default Provided)",
+                label="Reference Audio",
                 type="filepath",
-                value=DEFAULT_REFERENCE_AUDIO,
-                help="Upload custom reference audio or use the default (WAV format, 5-30 seconds)"
+                value=DEFAULT_REFERENCE_AUDIO
             )
             
             reference_transcript = gr.Textbox(