There are at least three artists named Noumena:
(1) Finnish metal band
(2) n9 (earlier Noumena)
(3) Noise/powerelectronics project originally from Pittsburgh, PA
(1) Noumena is a Melodic Death Metal band from Ähtäri, Finland, formed in 1998. The band's name comes from the word noumenon, a philosophical term used by Immanuel Kant. It consists of five members: vocalist Antti Haapanen, guitarists Tuukka Tuomela and Ville Lamminaho, bass guitarist Hannu Savolainen and drummer Ilkka Unnbom.