Robert Haigh, better known as Omni Trio, is a producer from Barnsley, South Yorkshire, England, best known for an ambient-leaning strain of drum and bass and jungle. Working primarily as Omni Trio c.1992–2004, he released six albums and numerous singles on the Moving Shadow label, including the widely cited anthem "Renegade Snares" and material collected on The Deepest Cut Vol 1.

Haigh’s recorded career began long before Omni Trio: he started recording in the late 1970s under his own name and the alias Sema. During that early period he contributed to experimental and ambient projects, including work with Nurse With Wound. That background in experimental and ambient music directly fed the shape of his 1990s drum and bass output, when he developed what is often described as an "ambient" drum and bass style.

Musically, Omni Trio’s production places atmosphere alongside break-driven rhythms. His 1990s material pairs sustained pads and room-bearing reverb with cut-up breakbeats and clear melodic hooks; "Renegade Snares" and tracks from The Deepest Cut Vol 1 exemplify that combination of spacious textures and edited breaks. Across his Omni Trio releases you can hear an emphasis on layered atmospherics, melodic motifs and carefully arranged drum programming rather than raw, maximalist bass pressure alone — a sound that sits at the intersection of breakbeat-driven DnB and the more reflective, liquid-leaning side of the genre.

As a producer, Haigh’s role was constructing full arrangements: the records credited to Omni Trio are studio works focused on composition, sample and synth layering, and the precise placement of drum edits and ambience. Those working methods are evident on the Moving Shadow singles and the six albums released under the Omni Trio name. The track "Renegade Snares" became emblematic of that era and remains a touchstone in discussions of atmospheric drum and bass from the 1990s.

Omni Trio’s recorded output on Moving Shadow — singles and album material — represents his primary contribution to the scene between the early 1990s and 2004. The 2004 album Rogue Satellite marks the last substantial release under the Omni Trio name; after that record Haigh largely ceased recording as Omni Trio and returned to releasing work under his own name, shifting toward modern classical and minimalist composition.

Concrete connections in his biography include his early collaborations in experimental and ambient circles (notably Nurse With Wound), the Sema alias and a recording career beginning in the late 1970s, six albums and a run of Moving Shadow singles in the 1990s and early 2000s, the signature single "Renegade Snares", The Deepest Cut Vol 1 material, and the 2004 Rogue Satellite album. Since 2004 he has concentrated on modern classical and minimalist releases under Robert Haigh rather than new Omni Trio records.

Releases & EPs

The Helicopter Tune / Finest Illusion (Legal Mix) / Thru the Vibe (2 On 1 Mix)