In the case of particularly challenging construction projects such as a lecture hall for 500 students, it is extremely exciting to see whether the acoustic planning correlates with the execution. The tension and anticipation for us acousticians, just before entering the finished room for the first time, is difficult to put into words and is something very special for us as professional planners. It is a unique experience when the first listening impression is a good one, compared to an empty lecture hall. The evaluation of the measurements is in full swing and the team is confident that the set goals will be achieved.