Techniques - AUDIO DESIGN
Modal Resonaces and Reverberation Time
The techniques for audio design are methods with which we can decrease the frequency resonances(Modal resonances) and reverberation processes in one room. The Modal resonances are result of the reflected sound waves from different objects like walls and ceiling. Some of these waves reflect more than five times and they cause something that our ears hear like: BOOM BOOM. This is a big problem because the entire sound picture becomes very obscure. To decrease this effect we analyze the geometry and shape of the room. After this analysis is finished we know exactly on which frequencies we have resonances and we can start dealing with them. For this aim we put special absorber panels on the walls, ceiling or other places in the room. Don't think that this is easy job, sometimes is very hard to find these places in the room. The second technique which is also very important, is used to adjust the Reverberation time of the room(T60). Different rooms have a different reverberation time, which depends on the volume, shape and the absorb factor of the room. Usually the T60 parameter must have value around 0,4 - 0,6sec. for small rooms but for large musical auditoria or churches its value varies from 1 to 2 seconds. This little difference sometimes causes tiredness and distraction of the listener and also for speaking auditoria the effect is low clarity. Audio Design measures the T60 parameter, makes vast improvement of the clarity and makes listener feel very conveniently.
Positioning 