Noise Generator

White noise has equal energy across all frequencies, pink noise emphasizes lower frequencies for a softer sound, and brown noise is even deeper. Brown is popular for sleep, pink for focus.

Research suggests moderate ambient noise can mask distracting sounds and improve focus. Results vary by individual, so try different noise types to find what works best.

The World Health Organization suggests staying under 80 dB across an eight-hour day. Around 60 dB — roughly the level of a conversation — is easy on the ears over several hours and is quite enough for concentration. If you find yourself turning it up repeatedly, you are trying to cover surrounding noise; noise-isolating earphones serve your ears far better than more volume. And switch it off completely for a few minutes every hour.

At a low volume it is generally fine, but playing it from a speaker across the room is far kinder to your ears than falling asleep in earphones. Wearing them all night keeps the ear canal damp, which invites irritation, and lying on your side adds pressure. There is also a habit risk: rely on it every night and quiet rooms start to feel unsleepable, so setting a timer to switch off after an hour or two is the wiser arrangement.