Hierarchical Transmission of Multispeaker Stereo

Introduction of the apparent localisation of sound images than conventional 2-speaker stereo, especially when sounds must match visual images in direction. This paper describes methods of optimising subjective reproduction from larger numbers n = 3 to 5 of front-stage speakers based on theoretical models for subjective sound localisation, whereby sounds intended for reproduction via n1 stereo speakers are optimally reproduced via a larger number n2 of loudspeakers, and a compatible hierarchy of n-speaker stereo transmission standards is described.