Update app.py

app.py

@@ -2052,11 +2052,11 @@ def update_images():
 
 def clear_state_and_textbox():
     conversational_memory.clear()
-    return " "
+    return ""
 
 def transcribe_and_update_textbox(audio, chat_input):
     transcribed_text = transcribe(audio)
-    return "", transcribed_text
+    return None,transcribed_text
 
 with gr.Blocks(theme='Pijush2023/scikit-learn-pijush') as demo:
     with gr.Row():