Creating rooms which satisfy optimally the expectations of spectators and users for a high-quality music and speech transmission and for an agreeable acoustical atmosphere, is an objective we want to support by expert planning.

In classical auditoria like theaters and open-air stages, room-acoustical rules and regularities were already taken into account hundreds of years ago. Rooms created in those times excel by acoustics which still today are considered to be extraordinary and outstanding.

The quest for new creative designs in architecture with high demands on aesthetic impression and individuality has given rise to a great number of buildings with obvious acoustic shortcomings like echo phenomena, excessive reverberation and poor speech intelligibility. Quite often it later results necessary to recondition these buildings with high additional expense.