The Alfred Wolfsohn Voice Research Centre was a project established to investigate the therapeutic and artistic potential of vocal expression founded by Alfred Wolfsohn in Berlin during 1935 and re-situated in London during 1943, where he and his contemporaries and successors developed principles and practices that provided the foundations for the use of an extended vocal technique, which enables vocalists to extend their vocal range and flexibility beyond that usually heard in speech or song.
The Centre inspired, precipitated, and influenced a number of developments within the arts, the expressive therapies, and psychotherapy, including the Roy Hart Theatre, founded by Roy Hart, the psychotherapeutic approach to song, prayer, and guided meditation evolved by Paul Newham, the clinical application of singing and nonverbal vocalization in music therapy and drama therapy, and the use of spontaneous vocal expression in dance movement therapy.
In addition, the extended vocal technique developed at the Centre has been used by performers in avant garde theatre, experimental music, and postmodern dance including, Eight Songs for a Mad King composed by Peter Maxwell Davies and performed by Roy Hart, Akropolis (1962) directed by Jerzy Grotowski, Orghast (1971) directed by Peter Brook, and House of Bones (1991) by Motionhouse with vocal music composed and performed using extended vocal technique by Paul Newham.