“…Different works had been reported on exploration of using various natural fibres [51][52][53] viz., wool [54], cotton [50,55], kapok [56], kenaf [57], hemp [58][59][60], ramie [61], flax [57,[61][62][63], banana [64], broom [65], coir [66], jute [51,61,[67][68][69][70], tea leaf [71], combination of Luffa fibres with cotton layer [72] and agro residues viz., straw, oil palm [57] for producing sound absorbers. Most of the fibres showed encouraging sound absorption property.…”