Why do I occasionally hear the audience cheering or hand clapping sound when the Digital Music Arena feature on the Blu-ray Disc Home Theater System is activated.

The Digital Music Arena is a special sound field of the Blu-ray Home Theater System that analyzes your music content and tries to simulate the O2 Arena concert hall acoustic sound characteristics. Then it enhances a particular content such as audience cheering or hand clapping in order to let the users have a deeper sound listening experience of the concert hall without actually being there.