*Acoustics from Interior Designer Perspective DOI: http://dx.doi.org/10.5772/intechopen.84167*

*Acoustics of Materials*

**Figure 3.**

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**Figure 4.**

*The six-story ceremony hall in Ālī Qāpū palace in Isfahan, Iran.*

interface and the user concentration disappears.

systems in the buildings, and the surrounding level of noise.

needs some reinforcements. The high edifice was using the background of the stage performance as backstage services spaces, stage set design, and main reflection

*The amphitheater (the Greek Odeon of Herodes Atticus in Greece on the right and the Roman Theater of* 

The Islamic civilizations lasted for many eras and were a mix of religious reverence, science, and art lifestyle. They used the sciences as a base to all their inventions and creations under the spiritual beliefs. The great palace of Ālī Qāpū relieves new challenge of acoustical behavior and treatments. Built in the early Safavid style was the six-story Ceremony Hall (**Figure 4**). The muqarnas and cutout designs function to decrease reflections and act as a sound diffuser for the enhancement of the religious songs without echo, in beauty and functionality. Due to the distinguished advancements of mathematics, especially the algebra and physics, the results are magnificent [5].

Architectural acoustic design starts from the acoustical engineering. The connection between the physics and their applications when Wallace Clement Sabine, father of the modern building acoustics, gets the attention of the sound in the different lecture halls in Harvard where he studied physics science. Absorption formula title—Sabine's Formula—honoring his hard studies and experiments to reach today science the Acoustical Design in Buildings. The acoustics of buildings face several obstacles: the modern design trends, the type of materials, the mechanical

The modern trends in design open up the spaces, no matter the functions and the privacy required for specific zones. Accordingly, the masking noise between the

elements to strengthen the sound on the stage.

*2.2.3 Acoustics in the Islamic eras*

*Mérida in Spain on the left) [3].*

**2.3 Acoustics in architecture**

The building materials become economic in terms of structural properties in favor of space and cost saving. Such products create extra load on the noise production and prevent a safe environment for the users.

Mechanical systems in the buildings are necessary with today's climate. The air-conditioning systems, the elevators, and the ventilation are all components that contribute to the noise pattern of the buildings.

The level of noise's pollution created by today's lifestyle that is transmitted to the building add additional problems and multiply to a disastrous extend the noise pollution of our environment.

These problems are the main concern of the architectural acousticians.
