The Audio Chambers of the Technical University of Denmark



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Alistair Philip Wiper

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As it turns out, scientific inquiry into sound doesn’t only have an impact on our ears. It can also be extremely easy on the eye as these photos from the audio chambers at the Technical University of Denmark are a stunning testament to.

According to photographer, Alistair Philip Wiper: ‘The anechoic chambers work in much the same way as the microwave anechoic chamber (…), but the point is to remove reflections of audio waves rather than radio waves. The spikes on the walls, ceilings and floor absorb all sound waves, so there is no echo at all – it’s quite strange to stand in the room.

There is a net in the middle of the room that acts as the floor, so when you stand in the middle, there is an equal distance to the floor and ceiling, which is also quite strange. The room is used for testing all sorts of audio devices and the amount of noise they make.’

The Radio Anechoic chamber (below) is run with the European Space Agency (ESA) and used for the testing of microwave antennas in satellites and mobile networks. The overall idea is to minimize reflections of microwaves, and the big foam spikes are filled with carbon and iron to absorb the radio waves. This tests the effectiveness of the antennas without any external intrusion, and can furthermore simulate the conditions of extreme environment such as space.

And the resonating chambers (below) function in the exact opposite way of the anechoic chambers as they are covered with hard surfaces, designed to reflect the sound as much as possible.

If anyone has a connection at the DTU audio chambers, hook a brother up. Spending a few hours immersed in peculiar sound environments that look like this sounds like an A-OK way to get through an afternoon.

Sterling work, Alistair Philip Wiper.