Hydra
40 loudspeaker sound diffusion system
The Hydra loudspeaker orchestra is a sound projection system designed for performing electroacoustic music, with or without the participation of instrumentalists. A loudspeaker orchestra consists of speakers distributed throughout a performance space, used for the spatial diffusion of an electroacoustic work.
Diffusion refers to the practice of distributing sound throughout a space using multiple loudspeakers, typically with real-time control over sound levels, equalization, and spatial placement. The source material may come from live performers and/or stereo or multi-channel electroacoustic sources. The primary goal of this practice is to add another layer of interpretation to the performance of electroacoustic music, enabling greater expressive communication with audiences. Achieving this requires a sound projection instrument that is flexible enough to accommodate interpretative needs while delivering high-quality sound diffusion.
Hydra consists of 42 loudspeakers positioned throughout the concert hall, distributed both horizontally and vertically to create a wide range of sound planes and perspectives. A Yamaha QL5 console with 32 faders allow real-time control of individual loudspeakers or specially configured groups, tailored to each performed work.
Well-established diffusion systems in Europe, with advanced performance practices, include the Acousmonium, conceived and developed at the Groupe de Recherches Musicales (Radio France) in the early 1970s; BEAST (Birmingham Electroacoustic Sound Theatre), developed by Jonty Harrison at the University of Birmingham; the GMEBaphone at IMEB in Bourges, France; and the loudspeaker orchestra of Musiques & Recherches in Belgium, founded by Annette Vande Gorne.
2012: John Knowles Paine Hall, Harvard University
2015: Fenway Center, Northeastern University, Boston
2005: Midway Theater, Boston
2005: First Hydra setup in John Knowles Paine Hall, Harvard University
