Update app.py

app.py

@@ -807,7 +807,7 @@ Example: 'Received {total_slides} slides, {total_slides} scripts, and HTML files
                     audio_files.append(audio_file)
                     audio_urls[i] = get_gradio_file_url(audio_file)
                     progress = 90 + ((i + 1) / len(scripts)) * 10
-                    label = f"Generating speech for slide {i + 1}/{len(scripts)}..."
+                    label = f"Generating lecture speech for slide {i + 1}/{len(scripts)}..."
                     file_paths.append(audio_file)  
                     yield (
                         html_with_progress(label, progress),