SPK were an Australian industrial music and noise music group formed in 1978. SPK was formed when Graeme Revell (a.k.a. "EMS AKS", "Operator", "Oblivion") met Neil Hill (a.k.a. "Ne/H/il"). Revell was working as a nurse on a psychiatric ward at Callan Park Hospital where Hill was also working. Hill and Revell shared a house and an interest in the manifesto of the German radical Marxist group known as the Sozialistisches Patientenkollektiv (SPK).