This blows my mind a little!

45sound is a four-person start-up based just down the road from Google on Barrow Street, Dublin. They've developed a service for easily fan-sourcing live music videos and making them sound great by automatically matching them with a proper live audio recording. The band arrange the audio recording and promote the idea to their fans so we don’t have to be at any of the shows. It can scale around the world. Here's a sample from the Volvo Ocean Race in Galway at the weekend.