A low-Cost spherical loudspeaker array for Electroacoustic Music

This describes design and function of a loudspeaker array for diffusing sound outward in all directions from a given point in performance space. This diffusion is similar to that of acoustic musical instruments. Its purpose is to allow acoustic blending of electronically and acoustically produced sounds in music combining the two. Perceptually integrating these is a problem for composers and performers of electroacoustic music. There are various approaches to the problem, each with costs and benefits. A device was constructed with multiple outward facing loudspeakers arrayed around a single point. From an empirical standpoint it provides source point identification and emulates the emanation of sound from an acoustic instrument or human voice when deployed in a space used for acoustic musical performances and without recorded reverberation or post-production reverb effects added. Its use should allow acoustic blending of electronically produced sounds and un-amplified voices or instruments. Tests show a functional frequency response that may or may not require equalization. Performance experiences must be observed and evaluated.