Sound match
PlusPlay any sound near your phone, a fan or a video on a laptop. Hush Machine listens for 10 seconds and rebuilds it with its own generators.
Nothing is recorded or kept, only measured.
Every noise colour, on one dial.
Noise made live on your phone. No loops. Nothing repeats.
Coming soon to iPhone
Brown, −6 dB per octave.
Turn one dial
White is bright and airy. Brown is low and deep. Every colour between is one turn away, and the dial always says it in words.
Violet
+6 dB per octaveThe brightest colour, mostly high hiss.
Blue
+3 dB per octaveBrighter than white, for people who like hiss.
White
flat: equal power at every frequencyA bright, even hiss, like a detuned radio.
Grey
shaped to an equal-loudness curveTuned to sound equally loud at every pitch to the human ear.
Pink
−3 dB per octaveSofter than white, like steady rain.
Brown
−6 dB per octaveDeep and low, like a waterfall or a strong wind. Also called red noise.
Deep brown
brown with a low shelfBrown noise with more rumble at the bottom.
Each drawing is the colour’s spectrum: low pitches on the left, high on the right. Every sound
It listens. It never records.
Two ways to let Hush Machine pick the sound for you. Both listen for 10 seconds, measure, and forget.
Room match
Before sleep it listens to the room for 10 seconds and sets the colour and level to cover what's there: traffic goes browner, voices pinker.
- TrafficBrowner
- VoicesPinker
Nothing is recorded or kept.
The night journey
The colour drifts while you sleep: pink to fall asleep, deep brown through the night, brightening towards white at wake time. Or set the sleep timer and let it go with a long, slow fade.
One-time, no subscription.
Try Plus free for 3 nights. Nothing is charged after. Buy it only if you want to keep it. The dial, every noise colour, the sleep timer and three mixes are free.
- Plus
- $7.99
- One-time
- $3.99 at launch
- Lifetime
- $19.99
- Plus and every pack, now and later
- Sound packs
- $2.99
- Each
Questions
- What is the difference between white, pink and brown noise?
- White noise has equal power at every frequency, so it sounds like a bright hiss. Pink noise drops by 3 dB per octave and sounds softer, like steady rain. Brown noise drops by 6 dB per octave and sounds deep, like a waterfall or a strong wind.
- Is the noise a recording?
- No. The app makes the noise on the iPhone as it plays, from a generator that never repeats, so there is no loop point to hear.
- What is deep brown noise?
- Brown noise with extra low end: the low rumble many people ask for when brown noise still sounds too bright.
- Does the app need an account?
- No. The app has no account, no ads and no analytics.