Recent studies on the seat-dip effect: Analysis and perception

Absence of Seat-Dip in the Stalls of the Teatro Colón in Buenos Aires

“…Having seen and analysed the inevitable early establishment of seat-dip, the fundamental question remains to be answered: why is no seat-dip perceived on the main floor of the Teatro Colón? We believe that the key lies in the rapid temporal recovery which, in the measured positions, is reached at the most 130 ms after the arrival of the direct signal 5 . After that moment, the frequency response remains relatively smooth, with local fluctuations coming in and out over a few ms.…”