Important aspects in Acoustical Design of an Auditorium / Cinema Hall
Acoustical Defects that can arise in Auditoriums/Cinema Halls
Excess Reverberation Time
Due to the large size of the Auditoriums, in absence of sufficient amount of strategically placed Sound absorptive surfaces, it takes longer for the sound to die down inside the room and causes extra echoes, and destroys the intelligibility of speech or clarity of music.
Opposing Parallel walls which cause reflections that travel to and fro in between the opposing walls causes fluttering echoes to be present inside the hall.
Delayed Echoes –
Wrong placement of speakers where there is a large distance between the speaker and the listener, in presence of reflective surfaces causes the listener to hear the reflections of sound distinctly which follow the direct sound.
Low Transmission Loss –
Low Transmission Loss Rating of the walls and the doors can cause outside noise to spoil the ambient noise levels inside the auditorium. The walls of the auditorium should be designed to provide 50+ dB of Transmission Loss Rating.
Unevenly distributed Sound Pressure Levels –
wrong speaker placement and calibration can cause unevenly distributed sound pressure levels inside the auditorium and that creates live spots at some seats where the sound is extra loud, and dead spots at some of the seats where sound is not loud enough.
We provide PROVEN Acoustic design solution to cure all of the Acoustical Defects and achieve the ‘Perfect’ acoustical field inside the Auditorium and achieve the following parameters :
Advantages We Offer :