An anechoic chamber is a room designed to stop reflections or echoes

This is what a balloon popped inside one sounds like

📹 EthanCGamer

https://t.co/WzHtBbkciz https://video.twimg.com/amplify_video/1789660277002190848/vid/avc1/836x720/SSdtpKdv2JajSgRQ.mp4?tag=14