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Yeah you can! A lot of the people I interviewed actually did that - they'd wear earplugs and have a sound generator going... Haha. Kind of counterintuitive since they'd be blocking out the noise masking as well, ha!

That is a good workaround though to get a similar effect! Funny how you tried to digitally equalize the earplugs low-pass filter, haha

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I sleep like that, with earplugs and a white noise generator. The frequencies that make it past the earplugs are the ones you want anyway for blocking other sounds that make it past, so it's not that counterintuitive. The only sounds that now interrupt my sleep are low frequencies coming from below, through the pillow-side ear which doesn't get to hear the sound generator much.

Interesting thought on how the lower frequencies that make it through mask out that frequency spectrum.

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