NHK Osaka Broadcast Stations Broadcast Hall, well-known by its popular name “BK Hall,” was totally renewed and reopened in March of 2001. This large facility now consists of an 18-floor broadcast hall, the 13-floor Osaka Municipal Museum and Archaeological Evidence Center, and a spacious, ball-shaped atrium linking the two buildings. TOA installed an advanced sound system with fully digital mixing console as the core of NHK OSAKA Hall to be utilized for public recordings and other purposes. Optical cables were installed for signal transmission to build a digital network offering fully integrated control of digital processors and power amplifiers. The system also permits control and operation monitoring of each piece of connected equipment from a remote PC display.