The advance of technology recently brings a positive impact for interior design. One of them is the design of a multifunctional auditorium. As a public entertainment place, the acoustics system is highly considered in designing an auditorium. To design a comfortable acoustic auditorium, required an interior acoustic system that can control and present an expected acoustic for a room. The acoustic finishing material has a great role in controlling and presenting an acoustic. Besides presenting an audial convenience, each acoustic finishing material used also needs to be adjusted to the image and design concept of the auditorium itself. In terms of colour and shape of the material as well. The acoustic material finishing is also corresponding to the placement of other acoustic materials in order to visualise the harmonization between the beauty of visualization and audial convenience in an auditorium.