  A Personal Sound Zones (PSZ) system aims to generate two or more independent
listening zones that allow multiple users to listen to different music/audio
content in a shared space without the need for wearing headphones. Most
existing studies assume that the acoustic paths between loudspeakers and
microphones are measured beforehand in a stationary environment. Recently,
adaptive PSZ systems have been explored to adapt the system in a time-varying
acoustic environment. However, because a PSZ system usually requires multiple
loudspeakers, the multichannel adaptive algorithms impose a high computational
load on the processor. To overcome that problem, this paper proposes an
efficient distributed algorithm for PSZ systems, which not only spreads the
computational burden over multiple nodes but also reduces the overall
computational complexity, at the expense of a slight decrease in performance.
Simulation results with true room impulse responses measured in a Hemi-Anechoic
chamber are performed to verify the proposed distributed PSZ system.
