Decibel Festival | 163 followers on LinkedIn. Decibel International Festival of electronic music performance, visual art and new media | Founded in 2003, Decibel Festival became a unique platform for exposing attendees to leading-edge multimedia art from around the globe. With a focus on live performance, interactive multimedia art, state-of-the-art sound and technology based education; Decibel solidified itself as one of the premier electronic music festivals and promotional organizations in the world. The five-day festival program averaged over 25,000 attendees a year.