The Nitty Gritty

The science behind it
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The Natural Resonance of an Ear Canal

The purple line is my ear’s natural resonance to pink noise. Notice how the ear has a natural ‘boost’ from 1500-4000 Hz.

This is where the magic is.

We want to preserve this.

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Standard Yellow Foam Earplug

This is my ear’s frequency response to the pink noise when using a standard foam earplug (green line). Notice how uneven the attenuation. This is why music sounds terrible when you use foam earplugs. Additionally, notice that at 125-750 Hz there is hardly any attenuation at all. This due to leakage from the foam plug not fitting my ear properly.

The result is my ear is protected (for the most part) but the fidelity of the sound is completely distorted.

One-Size-Fits-All Flange Filtered Plug

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This is my ear’s frequency response to the pink noise when using a flange style earplug with 20 dB SPL filters (pink line). Notice how uneven the attenuation. Additionally, notice that at 125-1K Hz there is hardly any attenuation at all. This due to leakage from the flange plug not fitting my ear properly.

The result is my ear is barely protected (for the most part) and the fidelity of the sound is completely distorted.


 
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Custom Plugs by Maura

This is my ear’s frequency response to the pink noise when using one of my custom earplugs ( 16dB Attenuation Filter). Notice how the green line replicates the purple. My ear’s natural resonance is preserved throughout the entire frequency range. The only difference is that the volume is lower.

The result is that my ear is protected and the fidelity of the sound is preserved.

This is how you enjoy music safely.