Saadatnia et al. [5] conducted an experiment on wheat and barley straws made into acoustic boards. The sound Ersoy and Kucuk [6] uncovered the potential of waste industrial tea-leaf as an acoustic material.
Saadatnia et al. [5] conducted an experiment on wheat and barley straws made into acoustic boards. The sound Ersoy andKucuk [6] uncovered the potential of waste industrial tea-leaf as an acoustic material.