The mixture material of dried straw and kapok for acoustic treatment for UTeM mosque

The acoustical requirements in terms of intelligibility and
liveliness are dissimilar for both of sounds-recitation and speech on
religious subjects at UTeM mosque. To attain an overall satisfactory
acoustical performance, it is significant to find an optimum Reverberation
Time (RT) and the best directivity, which is the major factors affecting
intelligibility and liveliness. This experiment is conduct to gauge the effect
of RT by making it a variable, while keeping other factors as non-variable
and fulfilling ideal conditions for maximum intelligibility. Bearing in
mind, the acoustical problems always occurred in any communication
building. To improve the problem, this paper presents the new idea of
improvement by using biodegradable sound absorber materials which is
the mixture of dried rice straw and kapok.