The latest solution to cross our desk is QuietOn Sleep, a set of earbuds designed by ex-Nokia engineers that use active noise cancelation with a focus on blocking low-frequency sounds.
Prototypes from Bose and crowdfunded efforts from startups such as the Sleepbuds are a couple of recent examples of snore-silencing earbuds. As a point of difference, the folks behind the QuietOn Sleep earbuds champion the ability of theirs to really home in on low-frequency sounds below 500 Hz, which they say regular earbuds are unable to block.
They developed the noise-canceling abilities after analyzing hundreds of tapes of snoring, along with other low-end noises like outside traffic and music coming through walls. The finished product is a set of active noise canceling earbuds that use a built in speaker to emit a phase-shifted sound designed to drown out those audio irritations.