Saturday, March 29, 2014

Keith Yeung: Acoustics Research

Acoustics has many way of affecting human perception. In many ways the sound that bounces back form a surface can create a spatial feeling of depth. Depending on the shapes of the surfaces and the directions it points, the sound quality could could enhance the music at the concert hall or redirect loud noises away from the peaceful space.

Depending on the material of acoustics, the strength of the sound that bounces off will differ. Masonry materials will isolate sound greatly as it is quite thick. Thick materials are rigid enough to absorb and stop sound. However, wood is much denser than masonry thus absorbing less sound. However, it is more effective in resonating sound more easily and giving more control to the sound reflected. Physically theaters are designed to have short reverberation time (or reflections) so the less sound waves hit objects the longer it lasts. Theaters are designed to reflect the sounds coming from the stage, increasing the amount waves and absorbing excess sound.


Architects Design the volume that holds these acoustic. The angle to which these volume are designed can greatly affect the way sound is absorbed by the audience. Determining the angles of the reflection of sound can effect the comfort of the audience. The architects at the image below uses the relation of the human projection to calculate the distance and reflections of the sounds created.

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