Update app.py

app.py

@@ -401,8 +401,9 @@ def create_zip_of_files(file_paths):
 
 # Access local files
 def get_gradio_file_url(local_path):
+    """Get the proper file URL for the public space"""
     relative_path = os.path.relpath(local_path, os.getcwd())
-    return f"/gradio_api/file={relative_path}"
+    return f"/proxy/{relative_path}"
 
 # Async generate lecture materials and audio
 async def on_generate(api_service, api_key, serpapi_key, title, lecture_content_description, lecture_type, lecture_style, speaker_audio, num_slides):
@@ -2007,7 +2008,12 @@ with gr.Blocks(
 
     # Handle speaker selection
     def update_speaker_audio(speaker):
+        """Update speaker audio with proper URL handling"""
         logger.info(f"Speaker selection changed to: {speaker}")
+        # Get the absolute path to the speaker file
+        speaker_path = os.path.join(os.getcwd(), speaker)
+        if os.path.exists(speaker_path):
+            return get_gradio_file_url(speaker_path)
         return speaker
 
     speaker_select.change(