The court heard how fire crews were alerted to the presence of a woman by a gurgling sound.

A preserved-moss wall absorbs ambient sound but for a gurgling fountain and soothing music.

No cries or gurgles, the unnerving silence in the room is only broken by the high-pitched beeps of a pulse rate monitor.

The inability to belch can cause bloating, pain, gurgling in the neck and chest, and excessive flatulence as built-up air seeks an alternate exit route.

A preserved moss wall absorbs ambient sound, but for a gurgling fountain and soothing music.