Brown Noise vs White Noise for Masking Snoring
White noise is the default recommendation and it is the wrong one. Snoring energy sits in the low frequencies, and so does brown noise. Matching the mask to the noise is most of the trick.
Masking beats blocking for snoring, and most people masking it are using the wrong colour.
The reason is simple enough to fix tonight and it costs nothing.
What the colours actually mean
The "colour" of noise describes how sound energy is distributed across frequencies.
White noise has equal energy at every frequency. Because human hearing perceives higher frequencies as louder for equal energy, white noise sounds bright and hissy — like an untuned radio or a television with no signal.
Pink noise reduces energy as frequency rises, at 3 decibels per octave. It sounds more balanced and natural. Steady rainfall is close to pink.
Brown noise — sometimes called red noise — drops off faster, at 6 decibels per octave. Far more energy sits at the bottom of the spectrum. It sounds deep and rumbling: a waterfall heard from a distance, or heavy surf.
Why this matters for snoring specifically
Snoring energy concentrates roughly between 100 and 500 Hz, with the deep resonant snores sitting at the low end of that.
Masking works by raising the noise floor in the same frequency range as the sound you want to hide. A mask with plenty of energy where the snore lives leaves the snore with nowhere to stand out. A mask whose energy sits somewhere else adds noise to the room without covering anything.
White noise puts most of its perceived energy well above the snoring range. You end up with a hissy room and an audible snore — more total sound, no more sleep. It is the worst of both.
Brown noise puts its energy exactly where snoring lives. That is the whole argument, and in practice most people notice the difference on the first night.
Pink noise is a reasonable middle option if brown feels oppressive. Some people find heavy low-frequency sound claustrophobic, and there is no prize for persevering with something you dislike.
Getting the volume right
The most common mistake after picking the wrong colour.
Set it just above the snore, not far above. The goal is for the snore to stop being a distinct event against silence, not to drown it in something louder. If you have to raise your voice over your masking sound, it is too loud and you have swapped one sleep disruptor for another.
Aim for a level where you can still hear the snore if you concentrate, but it no longer stands out when you are not. Around 50 decibels is a common recommendation for sleep sound generally — roughly the level of quiet conversation.
Keep it constant all night. Do not use a timer. The point is a continuous floor, and a machine switching off at 2am delivers you back to a silent room with a snore in it, which is precisely the condition that wakes people.
Place it between you and the snore where possible, rather than on the far side of the bed.
Where to get it
A free app or a video works. Any phone can generate brown noise, and this is the cheapest possible test of whether masking helps you — try it tonight before buying anything.
A dedicated machine is better long term for two reasons that matter more than they sound. Mechanical machines with an actual fan produce genuinely continuous sound, whereas cheap digital loops repeat, and once you notice a loop you cannot stop noticing it. And a machine leaves your phone out of the bedroom.
A fan is the original brown noise generator and works well. It has the advantage of being something you already own.
The honest limits
Masking is a coping strategy. It manages your experience of the noise without touching its cause, and there is one circumstance where that is the wrong trade.
If the snoring you are masking contains pauses, gasps or choking sounds, you are the only person in a position to observe that — the snorer cannot. Covering it up removes the household's only monitoring system for something that needs a doctor. How to spot sleep apnea in someone else.
Record a night before you settle into a long-term masking arrangement. How to do that without it becoming a weapon.
Combining approaches
Masking and blocking are not alternatives and the best results come from using both. Silicone putty earplugs plus brown noise covers more of the problem than either alone, because the plugs take the top off the high-frequency components and the brown noise fills in underneath. Which earplugs work for this.