Production and Live Transmission of 22.2 Multichannel Sound with Ultrahigh-definition TV

摘要

A 22.2 multichannel sound system was developed for ultrahigh-definition TV. The improvement in the spatial quality created by this system as compared to that of two-dimensional sound was evaluated and reported in previous papers. The first experiment on large-scale live production and transmission of 22.2 multichannel sound with ultrahigh-definition video was carried out to show the possible application of this system to next-generation broadcasting. In Tokyo, 22.2 multichannel sound was live mixed and transmitted to Osaka using an existing IP optical network. This paper describes in detail the live production and its transmission using the 22.2 multichannel sound system. It also discusses various issues of sound design, capturing, and mixing for three-dimensional sound.