compressed fibreboard, rough plaster, draperies, and seat materials designed for their sound-absorbing properties.
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compressed fibreboard, rough plaster, draperies, and seat materials designed for their sound-absorbing properties.
Materials used to reduce reverberation in an auditorium include acoustic panels made of foam, fabric, or fiberglass, as well as perforated wood panels, sound-absorbing curtains, and specialized ceiling baffles or clouds.