Update app.py

app.py

@@ -61,5 +61,5 @@ if st.button("Play Audio"):
     st.audio(audio_data['audio'], 
              format="audio/wav",
              start_time=0,
-             sample_rate=speech_output['sampling_rate'])
+             sample_rate=audio_data['sampling_rate'])
     st.audio("kids_playing_audio.wav")