While talking a man says something on a loud speaker.
A man talks over a tannoy system while other people murmur in the background. A person is speaking through a loud speaker while others are speaking in the background. A person is speaking through a loudspeaker while other people are speaking in the background. While other people murmur in the background, a man speaks over a Tannoy speaker system. While talking a man says something on a loud speaker.