Update app.py

app.py

@@ -44,7 +44,9 @@ def chat_with_gemini(user_input, history):
         history = []
     global chat
     # Initialize or continue conversation
-    chat = client.chats.create(model="gemini-2.0-flash") if not history else history[-1]  
+    if chat is None:
+        chat = client.chats.create(model="gemini-2.0-flash")  # Initialize chat once
+
     
     print("User input:", user_input)
     
@@ -63,9 +65,9 @@ def chat_with_gemini(user_input, history):
 
 def process_audio(audio, history):
     """Process audio input, convert to text, and get response."""
-    if not audio:  # This checks for both None and empty input
-        return None, history, None
-    
+    if audio is None:
+        return "No audio detected", history, None  # Don't reset history
+       
     # Convert audio to text
     user_input = transcribe_audio(audio)