Unknown suppressors OG testing

[pods8 (Rugged Stitching)]

Good info, thanks for doing the math and sharing. Plus, a new thread on "suppressor science" would not only be cool, but might keep Form from going all Episode 37, Evil Form.

It would be appreciated elsewhere, imho. Sometimes I want to nerd out on something and appreciate info, right now I find it to be too much and just a distraction from the thread. Can't imagine the folks who never like to nerd out find it very entertaining. Comparable data in normal values (which form posted) is useful to the average consumer. Data dissertations isn't.

 

[4th_point]

Comparable data in normal values (which form posted) is useful to the average consumer. Data dissertations isn't.

I'll jump out of this thread, but before I do...

Formi didn't post "normal" values. It underestimates the potential hearing damage. In fact, it could be considered harmful for the average consumer. It's an old legacy way of filtering the data. You can blame MIL for it. Or, Fudd thinking at the time.

I understand that many don't like to hear that, but I respect your desire to stick to older methods.

 

[pods8 (Rugged Stitching)]

I'll jump out of this thread, but before I do...

Formi didn't post "normal" values. It underestimates the potential hearing damage. In fact, it could be considered harmful for the average consumer. It's an old legacy way of filtering the data. You can blame MIL for it. Or, Fudd thinking at the time.

I understand that many don't like to hear that, but I respect your desire to stick to older methods.

"Normal" = what other suppressor companies do and provides a comparison (not an absolute).

 

[thinhorn_AK]

*Edit - tentatively gone* I have an unfired OG 30 cal, cerakoted FDE, if anyone is interested. I'll beat the price of a new one and you can have your SOT hold it (if they will, you confirm) until after Jan 1 if the tax stamp is your hangup. US happily offered to swap me for something else, and I'll go that route if needed. Trying to save them some hassle of dealing with it. Fantastic guys to deal with.

Shoot me a PM.
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Wait what??? Now multiple people are returning/selling their OGs???

 

[Bluefish]

Explain to me, as a human, why I should care about the Z values? Does it affect my hearing, even if I can’t hear it?

As others have said, the short answer is yes.

The cilia in the ear are like little hairs and are in a spiral shaped cochlear. The smallest most fragile ones are on the outside and used for high frequencies, hence why nihl starts with high frequencies. The easiest damaged ones are the least protected. They get bent and broken by the pressure waves in the air (sound) and no longer work. Microscopic pictures look like blowdown in a forest.

Also the reason we have weighting is the human ear has resonance in the ear canal that boosts the mid frequencies. Microphones don’t do that, so the weighting is used to compensate for the differences between what a microphone hears and what a human hears.

There are also fletcher munsen? curves (I may have this wrong as I have not worked in the sound industry in 10+ years) which suggest that humans don’t was a flat response from a speaker, but more base and highs to compensate for ear response at low volume levels. This was commonly done with the loudness button on boom boxes. It just boosted the lows and highs which sounds better to humans.

 

[nm.otter]

There are also fletcher munsen? curves (I may have this wrong as I have not worked in the sound industry in 10+ years) which suggest that humans don’t was a flat response from a speaker, but more bass and highs to compensate for ear response at low volume levels.

Right https://en.wikipedia.org/wiki/Equal-loudness_contour

This was commonly done with the loudness button on boom boxes. It just boosted the lows and highs which sounds better to humans.

'Loudness buttons' were a crude approximation -- unfortunately, IMO. Early implementations were more faithful -- and far more useful.