Dave Sperandio, or "dio" has been working with a cappella music for 20 years as a performer, producer, and promoter. His work has helped to define and support the contemporary a cappella world for more than a decade.

Dave is the founder of the Alliance for A Cappella Initiatives, and creator of the acclaimed SoJam A Cappella Festival, as well as the 'Sing' vocal compilation CD.

Since founding the a cappella production company diovoce in 2000, Dave and his clients have made more than 100 appearances on numerous "best-of" compilations, and have earned hundreds of CARA nods, both as a performer and while "behind the glass". He has been called the "Timbaland of a cappella" in the Gotham-published aca-documentary "Pitch Perfect" (now a major motion picture), and has appeared in featured interviews with the Wall Street Journal, Mouth Off!, and Acatribe.

Dave has performed with numerous ensembles, directed the UNC Clef Hangers, and has toured and recorded with vocal tonic, transit and Almost Recess. His work has afforded him the opportunity to work with many artists including Ben Folds, Pentatonix, Peter Hollens, Lindsey Stirling, Brendan James, ARORA, and Street Corner Symphony.

In 2006 Dave partnered with fellow producers Ed Boyer, James Cannon, James Gammon, and Tat Tong to form VocalSource, which represents the most comprehensive network of vocal music producers and studios in the world.

In 2008 Dave merged the AACI with CASA, joining the CASA Board of Directors as Director of Events, managing SoJam and adding LAAF, VoCALnation, BOSS, and Acappellafest to CASA's family of events.

In 2011 Dave formed Vocal Mastering: the world's only dedicated mastering facility tailored specifically to the exacting and unique needs of vocal music.
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