4 ms·

More likely to get a pair of these https://www.bose.com/en_us/products/headphones/noise_masking_sleepbuds/noise-masking-sleepbuds.html https://www.bose.com/en_u

• ghaff 8y ago
  Assuming these are roughly equivalent to their in-ear headphones, I wouldn't worry about missing a fire alarm. They're pretty effective, especially for low frequency noise like aircraft engines, but they're a very long way from blocking all sounds.
  • sigstoat 8y ago
    the sleep pods are a combination of average ear plugs, and tiny little speakers playing white-ish noise rather loud. they don't do any active noise cancellation. sounds like they'll be good for somewhere around 90dB of noise masking. still doubt they'd stop a fire alarm.
    • ghaff 8y ago
      Interesting. I hadn't heard about those. I doubt it would handle 90db though. That's pretty loud, probably dangerously so for an extended period; it's about how loud a lawn mower is when you're operating it. Standard ear protection attenuates about 15-30db.
      • sigstoat 8y ago
        the 90dB of noise masking isn't all sound energy. they're also ear plugs (on the less effective end of things) so 15-20dB of that 90 is from jamming them into the ear canal.