´óÏó´«Ã½

The audio rig of the studio was all part of the Radio OB's work: they provided us with a 5.1 mix and a stereo mix of the sound from the shiny new OB truck, OB2, as 4 AES3 feeds.Ìý This new vehicle has an SSL C200sound desk.Ìý We set up an AES47 link using Glensound ATM boxes to get the audio feeds from the room where the OB truck multi-way ended to the opposite corner of the suite, in the gallery where our audio equipment is set up.

Ìý

´óÏó´«Ã½ Radio Outside Broadcast's new OB2 truck.

Ìý

The audio feeds were distributed via one of our 16x16 routers and our Yamaha O2R digital console to the NHK SHV recorder and our own audio recording systems. The return feeds from the NHK SHV kit were again fed through the console for level control and then routed to a 6-channel digital-to-analogue converter and thence to the loudspeakers in the listening room.

The O2R was also used to introduce compensatory audio delays to get the sound and pictures in sync in the listening room. NHK recorded the 5.1 and stereo audio, together with the compressed SHV video, on their recorder, and we recorded the same audio on a Tascam DA88 and on an Apple Mac Pro via an Apogee Rosetta 800.

The Glensound units were also used to provide an audio wordclock signal from the NHK SHV recorder to provide master clock to the OB truck. The stereo sound mix was also distributed to the 3D video recording kit for Danny Popkin using the Glensound ATM boxes.

Talkback units were set up in the gallery, the listening room, and the studio - with assistance from Stephen Anderson and Alastair Bruce - one of the most important uses being for the lighting controllers to get a low-delay version of the studio sound so that they could control the lighting in time to the performance.

We also used the Tascam DA88 to generate analogue timecode at 29.97 Hz for the NHK kit, but, on the day, it was not needed.

Particular thanks also go to David Marston who helped set up the audio kit.... and not to forget that it would not have been possible without the audio tie-lines that Tony Richardson installed in very short order, that carried the audio from the gallery to the listening room, and the talkback.