Why Lockheed Martin Is Blasting The Orion Spaceship With 1,500 Speakers

[SWL 1902]

http://www.popsci.com/why-lockheed-martin-is-blasting-orion-crew-capsule-with-noise-from-1500-speakers

More Speakers....

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[TasDom 2280]

That's very interesting......

 

"Seventy to 100 microphones placed on and around the Orion capsule provide feedback, so the engineers know whether the sound waves are diffusing properly".

 

2016: A Space Audyssey 

[Shodrewken 256]

That's awesome!

[garyrc 1525]

 

2016: A Space Audyssey 

 

Lol.  I assume they are using a test signal that has the same spectral characteristics as the launch blast, namely with a lot of bass.  I hope that immediately after each test they play Thus Spake Zarathustra.  That 4 octave bass C chord could grow right out of the test sound.

[SWL 1902]

Pretty sure there was a time that I had more speakers in my house than these dudes....

[Schu 4929]

I hope they are using some LFE

[dtel 28987]

Very cool, wish they gave a little more detail about amps and power required.

[Tweaker256 13]

I believe the setup was from Maryland Sound International, it's called DFAT, Direct Field Acoutic Test and is used as an alternative to a full up acoustic test chamber. It can be setup anywhere, it takes amps that come in a tractor trailer rig!

We're talking 140+db over the entire surface of a spacecraft.

http://www.msi-dfat.com/