 Researchers are investigating natural fibre composites as potential materials for sound absorption structures, specifically Flax low-melting point polyester needle-punch non-woven fabrics, which show better sound insulation at medium and high frequency, with a decrease in thermal resistance value with increase in low-melt pet percent and needle penetration depth. This article was authored by Nmutukumo, Jithila Gavathi, S. Nil Krishnan, and others.