From the forms and the elements which constitute them, the rooms present by defect an unpleasant acoustic behavior. We can simply perceive this while speaking or by slamming hands. This prevents a comfortable and definite listening of any Hi-fi or multi-channel system. These noise nuisances appear on all the band-width of the ear (20Hz with 20kHz). The most delicate to treat being low frequencies between 20 and 200Hz. The objective will therefore be to set up an innovative and efficient acoustical system of correction, making it possible to reduce the undesirable effects such as:
- Frequential Masking generated by the abundance of serious frequencies on the register medium - high-pitched
- Loss of intelligibility of the sound message caused by a too important reverberated field and excessive resonances
- Bad appreciation of the sound objects produced by many uncontrolled reflexions.