Acoustics Based on Volume:
Aluminium

A sphere, a cube and a tetrahedron: three objects made of aluminium, all constructed to contain the same volume. Together they form a new instrument which shows how form changes its acoustic character by using its individual resonance. With the use of electronics, the shapes can be used as instruments or acoustic (reverb) chambers. A work made for both performance and research, with an interest in the language of bodies.

To go more into depth I did some research on the instruments with a couple different tests to find information that you normally wouldn't hear just by ear.

I found out that the forms have not just one, but multiple resonating frequencies. I created a feedback loop in order to find their strongest resonating frequencies. The test for the echo time was more complex. I tried different pulses using the transducer, but striking the forms myself worked best, as the strike resulted in the longest decay. After finding the best percussion stick, I struck each form 9 times and calculated the average echo time.

Another test I did was a filter sweep. Here I didn't notice any considerable differences between the forms, except for the sphere. The sphere produces a lower dB and has some notable peaks and one clear peak at its resonant frequency: 3.720 kHz.