Time-Lag Adjusters Synchronizing the Five Choruses of "Ode to Joy" from the various areas of the world at Nagano Olympic Opening Ceremony

Abstract

The five choruses from various parts via satellites of world and an orchestra "Ode to Joy" were synchronized in Opening Ceremony of Nagano Olympic. NHK Engineering Services davaioped the Time-Lag Adjuster (TLA) to conduct this. TLAs overcame time and distance lags, and this technology brought their voices and images together at precisaly the same moment at Minami Stadium in Nagano on huge screens, united in a simultaneous live performance successfully. We also developed "Audio and Video delay time measurement device". which allowed easy and stable operation for the opening ceremony.