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Small anechoic chamber?

spwath
By spwath
in Audio
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Would it be possible to make a tiny anechoic chamber, like a 12"cube, to fire speakers into to measure?
Or would the size just create even more reflections?

What kind of dampening material would I need?

n0ah1897, on 05 Mar 2014 - 2:08 PM, said:  "Computers are like girls. It's whats in the inside that matters.  I don't know about you, but I like my girls like I like my cases. Just as beautiful on the inside as the outside."

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Just now, Omon_Ra said:

Measure what? SPL? dB? How big are the speakers you'll be using? There probably wouldn't be enough air in the 1 cubic foot box you'd build to get proper measurements, depending on the size/type of speaker you're trying to test.

Measure the FR curve, and distortion, and a CSD plot.


I would use probably no bigger than a 6"driver.

 

How would the box need to be to get proper measurements?

n0ah1897, on 05 Mar 2014 - 2:08 PM, said:  "Computers are like girls. It's whats in the inside that matters.  I don't know about you, but I like my girls like I like my cases. Just as beautiful on the inside as the outside."

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6 minutes ago, spwath said:

Measure the FR curve, and distortion, and a CSD plot.


I would use probably no bigger than a 6"driver.

 

How would the box need to be to get proper measurements?

TBH, I'm not sure. I'm not an audio expert, I just know that 1 ft3 isn't much space and would more than likely hamper the performance of even a 6" driver. Do you have a closet or something you could build in? You could make a small isolation booth like in a recording studio.

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Just now, Omon_Ra said:

TBH, I'm not sure. I'm not an audio expert, I just know that 1 ft3 isn't much space and would more than likely hamper the performance of even a 6" driver. Do you have a closet or something you could build in? You could make a small isolation booth like in a recording studio.

Not really, my closet is full.......

7fd13812-42d7-44d2-b133-f03ef7eac6bb.jpg

n0ah1897, on 05 Mar 2014 - 2:08 PM, said:  "Computers are like girls. It's whats in the inside that matters.  I don't know about you, but I like my girls like I like my cases. Just as beautiful on the inside as the outside."

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2 minutes ago, SSL said:

A small box won't be able to contain wedges large enough to absorb low frequencies.

 

The best way to measure speakers is to take them to a large space outside and put them on a proper stand.

Yeah, I figured that might be an issue.

 

Guess I'll have to do it the normal way.

n0ah1897, on 05 Mar 2014 - 2:08 PM, said:  "Computers are like girls. It's whats in the inside that matters.  I don't know about you, but I like my girls like I like my cases. Just as beautiful on the inside as the outside."

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