final_audio fixed

app.py

@@ -25,11 +25,12 @@ def synthesize(conversation_text, speed, progress=gr.Progress()):
         speaker_id = models['EN'].hps.data.spk2id[speaker]
         models['EN'].tts_to_file(text, speaker_id, bio, speed=speed, pbar=progress.tqdm, format='wav') 
         final_audio.write(bio.getvalue())
-        
-    return final_bio.getvalue()
+
+    return final_audio.getvalue()
   
 with gr.Blocks() as demo:
-    gr.Markdown('# Article to Podcast')
+    gr.Markdown('# Turn Any Article into Podcast')
+    gr.Markdown('## Easily convert articles from URLs into listenable audio Podcast.')
     with gr.Group():
         text = gr.Textbox(label="Article Link")
     btn = gr.Button('Podcasitfy', variant='primary')