AudioCheck
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Sound Tests & Test Tones Tests your Audio Equipment, Room Acoustics and Hearing, online |
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Online Tone Generators High-quality audio signal generators, .wav file output |
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Blind Audio Tests Critical listening tests. Training Files for Sound Engineers |
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Earplug Reviews Protect your hearing. Pick the right plug! |
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F.A.Q. Frequently asked questions. |
Imagine, as the party starts, you suddenly realize the DJ has the audio level set somewhere between way too loud and instant destruction. What do you do? First you should acknowledge that there really is a problem and you need to do something if you do not want your hearing to be damaged. As you consider building your own earplugs, you have a brilliant idea and head for the closest restroom...
To get the flattest attenuation out of toilet paper, moisten the paper under a water tap, remove the excess water by wadding the paper, then stick it in your ears. Beware : dry paper doesn't attenuate the lower frequencies at all, as measured during our tests.
Wet wadded toilet paper does the job and even supersedes earplugs designed for musicians in terms of offering a flat frequency response!
| 60Hz | 125 | 250 | 500 | 1k | 2k | 4k | 8k | 16kHz | ||
|---|---|---|---|---|---|---|---|---|---|---|
| Rated | - | - | - | - | - | - | - | - | - | NRR 16 |
| Measured | 13 | 14 | 15 | 17 | 19 | 22 | 25 | 28 | 31 | ΔF ±6.5 |
NRR stands for Noise Reduction Rating. It is a standardized measure expressed in decibels (dB), and represents the overall attenuation offered by the earplug. The higher the NRR, the stronger the attenuation. Differences in the NRR of less than 3 dB between earplugs have no importance in practice.
ΔF represents an important factor for musical applications, as it measures the standard deviation from a spectrally flat attenuation between 60Hz and 16kHz. The smaller the ΔF, the higher the fidelity. ±3dB is virtually inaudible and can be considered as the very best one can get.
| Snoring | Bike | Babble | Plane | Gun | Industrial | Club | Rock |
| w/Plug | w/Plug | w/Plug | w/Plug | w/Plug | w/Plug | w/Plug | w/Plug |
| Use | Score | Comments |
|---|---|---|
| At Home | • | Doesn't make much sense at home unless you have no other option. |
| On the go | • | Will save your hearing when you have nothing else at hand! |
| Industry | • | Will save your hearing when you have nothing else at hand! |
| Music | •• | Performs quite well actually, but not recommended for regular use. |