Update app.py

app.py

@@ -226,7 +226,7 @@ def generate_speech(name, input_text):
     history_openai_format.append({"role": "assistant", "content": message_content})
 
     # Use ElevenLabs TTS API settings and request for the latest assistant response
-    url = os.getenv("URL")
+    url = os.getenv("URL1")
     headers = {
         "Accept": "audio/mpeg",
         "Content-Type": "application/json",