Lowest vocal note by a male

The lowest vocal note produced by a male is G -7 (0.189 Hz) and was achieved by Tim Storms (USA) at Citywalk Studios in Branson, Missouri, USA, on 30 March 2012. Timothy is the bass singer for the vocal group 'Pierce Arrow'. The attempt was witnessed by two college music professors and an acoustician. The frequency output of Timothy's voice was measured using Bruel & Kjaer equipment (low frequency microphone, precision sound analyser and laptop for post analysis).