In large auditoriums or lecture halls lecturers address students who often sit far away. It is therefore vital that the lecturer’s voice is reflected so that it reaches the whole audience clearly.To achieve this, there should be as little distortion as possible from echoes and background noise, particularly low-frequency sounds such as ventilation, projectors and other technical equipment.
|Product combination||Low frequency (125 HZ)||Total acoustic performance||Impact resistance/ Durability||Indoor air quality||Ceiling surface|
Wall: Akusto Wall
The recommendation is for this particular activity and space, based on a comparison between Ecophon products. The scale applied ranges from 1 to 5, where 5 is the highest score. For indoor air quality, 5 equates to compliance with French VOC A+ and California Emission Regulation standard, and 4 equates to French VOC A and M1 (The Finnish Emission Classification of Building Material). The gamma surface should be used for the speech-reflecting zone.