Update app.py

app.py

@@ -8,6 +8,9 @@ from dotenv import load_dotenv
 from tempfile import NamedTemporaryFile
 from streamlit_webrtc import webrtc_streamer, WebRtcMode, ClientSettings
 import av
+import numpy as np
+import scipy.io.wavfile
+import scipy.sparse
 
 # Load API key from Hugging Face
 load_dotenv()