fixed audio paths

app.py

@@ -1,6 +1,6 @@
 # Lectūra Research Demo: A Multi-Agent Tool for Self-taught Mastery.
 # Author: Jaward Sesay
-# © 2025 Lectūra Labs. All rights reserved. 
+# © Lectūra Labs. All rights reserved. 
 import os
 import json
 import re
@@ -32,6 +32,11 @@ import markdown
 import PyPDF2
 import io
 import copy
+from pathlib import Path
+import time
+
+# Set static paths for Gradio
+gr.set_static_paths(paths=[Path.cwd().absolute()])
 
 def get_instructor_name(speaker):
     instructor_names = {
@@ -423,6 +428,7 @@ async def on_generate(api_service, api_key, serpapi_key, title, lecture_content_
     instructor_name = get_instructor_name(speaker)
     logger.info(f"Using instructor: {instructor_name}")
 
+    # Clear output directory and cache
     if os.path.exists(OUTPUT_DIR):
         try:
             for item in os.listdir(OUTPUT_DIR):
@@ -431,13 +437,15 @@ async def on_generate(api_service, api_key, serpapi_key, title, lecture_content_
                     os.unlink(item_path)
                 elif os.path.isdir(item_path):
                     shutil.rmtree(item_path)
-            logger.info("Cleared outputs directory: %s", OUTPUT_DIR)
         except Exception as e:
-            logger.error("Failed to clear outputs directory: %s", str(e))
+            logger.error(f"Error clearing output directory: {e}")
+            raise gr.Error(f"Failed to clear output directory: {str(e)}")
     else:
-        os.makedirs(OUTPUT_DIR, exist_ok=True)
-        logger.info("Created outputs directory: %s", OUTPUT_DIR)
-    
+        os.makedirs(OUTPUT_DIR)
+
+    # Clear browser cache by adding timestamp to file URLs
+    cache_buster = int(time.time())
+
     # Total slides include user-specified content slides plus Introduction and Closing slides
     content_slides = num_slides
     total_slides = content_slides + 2