stricter audio energy check

Author: davidzhao

livekit-rtc/tests/test_e2e.py

@@ -225,7 +225,7 @@ async def publish_audio():
 
         assert avg_received_energy > 0, "Received audio has no energy"
         assert avg_published_energy > 0, "Published audio has no energy"
-        assert avg_received_energy > avg_published_energy * 0.1, "Received audio energy is too low"
+        assert avg_received_energy > avg_published_energy * 0.9 and avg_received_energy < avg_published_energy * 1.1, "Received audio energy is not within range"
 
     finally:
         await publisher_room.disconnect()