Speech plays a major role in all worship houses. Only in most churches (not orthodox ones) and in some synagogues there are organs for which the room acoustic conditions can not be reverberant enough. The size of the worship house also creates problems with speech intelligibility. Today, the modern, digitally controlled, slimline line arrays have found their way to worship houses of all kinds. These ensure a very good speech intelligibility in rooms with reverberation times of 4sec and longer with unobtrusive installation and good selection of the installation positions.
Conducting tests to set up a new sound system with digitally controlled line arrays in the cathedral. As a result of this work, a new system with main groups near the altar and with time-delayed lines in the side areas and the galleries was planned.
Inauguration 2008/09 on the construction of the State Mosque in Doha, Qatar. Planning of the finishing materials of the wall and ceiling surfaces from a room acoustical point of view. Advice on the selection of the loudspeakers and the locations
New construction 2014/15 of the mosque in Istanbul. Room acoustical detailed investigations to select the ceiling and wall cladding. Planning a sound reinforcement system for high speech intelligibility