There are at least 3 artists to go under the name of Opiate

The most well know being Thomas Knak who lives and works in Copenhagen, Denmark.

He produces and remixes as Opiate on labels such as Sprawl Imprint, April Records, Sony, One little Indian, Vertical Form, City-Centre Offices, Raster-Noton, Earth Tones and Morr Music. Thomas is also part of Future 3 (3 albums and 2 EPs on April Records) and System (1 album on Scape).

Opiate has collaborated with Alva Noto on the OPTO files albums (autumn 2001 and late summer 2003) and with Björk on Cocoon and Undo (both taken from her Vespertine album of 2001). Records solo as Opiate, Gloria Hirsch and Thomas Knak.

Thomas has also produced commercial music for various tv and radio programmes, and for companies such as Nike, Innovation and Dornbracht. He has also been invited to write and produce for various plays and dance pieces and wrote and produced the music for the Danish feature film "Reconstruction", which won two prizes at Cannes Film Festival 2003.

2. A british band from Carlisle who (as far as I know) released a demo titled What Went Wrong on the Visible Noises Sampler named Subverse and in 2002 released their debut full length entitled Distinctive Smile.

3. A noise group from Toronto, Ontario.

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