The Flickr Anechoicchamber Image Generatr

86538536 :Piction ID--Tomahawk missile in testing room---Please tag these photos so information can be recorded.---- Digitization of this image made possible by a grant from NEH: NEH and the San Diego Air and Space Museum

86538477 :Piction ID--Tomahawk missile in testing room---Please tag these photos so information can be recorded.---- Digitization of this image made possible by a grant from NEH: NEH and the San Diego Air and Space Museum

86538479 :Piction ID--Tomahawk missile in testing room---Please tag these photos so information can be recorded.---- Digitization of this image made possible by a grant from NEH: NEH and the San Diego Air and Space Museum

86538512 :Piction ID--Tomahawk missile in testing room---Please tag these photos so information can be recorded.---- Digitization of this image made possible by a grant from NEH: NEH and the San Diego Air and Space Museum

86538570 :Piction ID--Tomahawk missile in testing room---Please tag these photos so information can be recorded.---- Digitization of this image made possible by a grant from NEH: NEH and the San Diego Air and Space Museum

86538507 :Piction ID--Tomahawk missile in testing room---Please tag these photos so information can be recorded.---- Digitization of this image made possible by a grant from NEH: NEH and the San Diego Air and Space Museum

86538778 :Piction ID--Tomahawk missile in testing room---Please tag these photos so information can be recorded.---- Digitization of this image made possible by a grant from NEH: NEH and the San Diego Air and Space Museum

86538822 :Piction ID--Tomahawk missile in testing room---Please tag these photos so information can be recorded.---- Digitization of this image made possible by a grant from NEH: NEH and the San Diego Air and Space Museum

86492892 :Piction ID--Convair employee testing in soundproof room---Please tag these photos so information can be recorded.---- Digitization of this image made possible by a grant from NEH: NEH and the San Diego Air and Space Museum

86293364 :Piction ID--Sound testing room checks---Please tag these photos so information can be recorded.---- Digitization of this image made possible by a grant from NEH: NEH and the San Diego Air and Space Museum

Anechoic Chamber At HARMAN Northridge Los Angeles USA

In the disused anechoic chamber of an abandoned site of the research institute Phazotron, the largest developer of aviation instruments in the Soviet Union first as well as Russia later. This is just a portion of the room, which is 20mts high.

The whole building is going to be demolished soon.

Moscow, Russia.

© Roberto Conte (2021)
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Here's another long exposure shot taken inside the abandoned Anechoic Chamber of Radiotehnika - a Soviet Hi-Fi equipment manufacturer.

This "chamber" is a massive cube/hall - a building inside a building that houses the Echo Chamber too (as was told by former employee), where the opposite effect is produced. The same employee explained to us that this is like he 3rd biggest Anechoic room there is, and I was inclined to believe in it, having seen some videos on them prior to stepping into this one.

It's a massive room with wire floor, a steel column/stand in the middle of it with a set of connectors for the speakers in test, and ~1,5m long sound absorbers placed in funny patterns (visible behind the silk screen). It's a sight to behold!
But the really surreal effect kicks in when those massive doors on rails are closed - a quick search in YouTube will give you an idea.

Man, audio specialists would pay to have access to this room, and to the Echo Chamber too. And tourists would love this Soviet architecture too, frozen in its time.

Hell, I remember when we used to sneak in this complex masked by night to visit the 1st class Fallout Shelter this factory housed, and was full of gear at the time. This shelter proudly displayed a diploma on the wall in the Civil Defense auditorium, setting the example for the rest of Soviet republics on how shelters should be done.

And here I am years later, having an access to this room by helping to vacate the premises before the scheduled demolition, acquiring some jaky speakers, and a good row of 3 foldable red chairs from the Listening room, where audio enthusiasts used to test the real-life performance of their gear.

Alas...
A stupid parking lot is scheduled to be built there.

Ilford FP4 Plus 125 reversed in PQ Universal and scanned with Plustek 7600i Ai.

Inside the abandoned Anechoic Chamber where Radiotehnika used to test their speakers. It's a huge cube with ~1,5m long triangular low frequency absorbers placed in funny patterns and wire floor in the middle - it's a huge one! Well, was.... They'll be building a PARKING LOT here, WTF...
It was a trip just to be there, to close the massive doors on rails, and enjoy the silence.

Ilford FP4 Plus 125 reversed in PQ Universal and scanned with Plustek 7600i Ai.

Best enjoyed with Dark Ambient / URBEX

ESA’s Compact Antenna Test Range at its ESTEC technical centre in Noordwijk, the Netherlands. This anechoic chamber is used to test space antennas of 1 m across or less, or else entire small satellites.

The CATR is screened against external electromagnetic radiation, while their inside walls is covered with pyramid-shaped non-reflective foam to absorb signals and prevent unwanted reflections, mimicking infinite space.

In addition, a pair of wall-mounted parabolic cylindrical aluminium reflectors alter the shape of signals as they reflect them, as if they have travelled thousands of kilometres instead of a handful of metres.

The CATR is supplemented by the larger Hybrid European RF and Antenna Test Zone (HERTZ) for larger antenna or satellite testing, as well as a lab for the testing of candidate antenna materials.

Credits: ESA-G. Porter