How does SIAP work?

A small number of microphones (usually four) high above the front of the stage capture the sound. Feed the stage sound of the performers, orchestra, choir etc. with all of its information such as source location(s) and their tonal quality to the SIAP acoustic processor.

The SIAP processor is a very powerful sound processing “system”. In this the sound is treated with appropriate time delays, filters and reverberation fine-structure based on the desired acoustic. For this purpose the processor comprises a large number of independently programmable channels, the output sound of which is reproduced in the hall through high quality power amplifiers and about 50 to 200 loudspeakers, distributed over the walls and ceiling. Ofcourse we are (more than) aware of all cosmetical and architectural aspects in the halls. We always respect the architectonic elements in a hall and adjust our loudspeakers in the desired color(s) so that they will “blend” and fit in the design of the hall.

This sound field, that is exactly the same as the reverberation time and corresponding nuances as set in the processor software, forms the optimum acoustic together with the hall itself. The SIAP reverberation enhancement system creates this sound field by building up reflections, reverberation etc. in exactly the same way as the natural reflections and reverberation in a hall itself.

Self evident as it may seem, but technically not at all a simple task. As an illustrative example may serve that the processor generates millions of unique sound reflections, which are of course reproduced live (real-time) in the hall! Not surprisingly the SIAP system is patented worldwide.