In developing the sonic crystal layout for the Organ of Corti, we developed 2 different layouts based on the character of the dominant environmental sounds. In London individual vehicle sounds are identifiable and there are more low frequencies. At the other three sites the sound is more continuous and has more high frequencies.
Each animation shows sound waves with a single frequency (tone) travelling through the sonic crystal over a time period of 0.1ms, the sound pressure level is shown in decibels. The sound waves that are scattereed by the cylinders in the sonic crystal interact particularly strongly at a frequency of 570 Hz which is important for the London site whereas the main sound energy from continuous high speed traffic is around 1 kHz which is an important frequency at the the other three sites. There are two animations for each layout, square (for London) and rectangular (for the other sites) and they show the different responses at the two frequencies (1 kHz and then 570 Hz)
The animations were developed by the Acoustics Research Group at the Open University.
Organ of Corti is winner of PRS for music Foundation's New Music Award 2010. For more information on the project see organofcorti.co.uk
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