Update app.py

app.py

@@ -119,7 +119,7 @@ class GeminiHandler(AsyncAudioVideoStreamHandler):
 
 stream = Stream(
     handler=GeminiHandler(),
-    modality="audio-video",
+    modality="audio",
     mode="send-receive",
     rtc_configuration=get_cloudflare_turn_credentials_async,
     time_limit=180 if get_space() else None,
@@ -153,7 +153,7 @@ with gr.Blocks(css=css) as demo:
         with gr.Column():
             webrtc = WebRTC(
                 label="Video Chat",
-                modality="audio-video",
+                modality="audio",
                 mode="send-receive",
                 elem_id="video-source",
                 rtc_configuration=get_cloudflare_turn_credentials_async,