English
SuomiPink noisefive versions, measured.
Pink noise carries the same power in every octave. Low and high pitches get an equal share, so nothing stands out: it is fuller than white noise and brighter than brown. Steady rain and wind in leaves have a similar balance.
- 5 sounds
- Velvet noise free
- Single steady sounds
What pink noise is
In Hush, Velvet noise sits closest to that textbook shape. The other pink sounds lean warmer, with a top end that falls away sooner.
Across the group, the level between 2 and 12 kHz falls 3.6 dB per octave on average. Copper noise is the darkest: it falls 5.0 dB per octave. Velvet noise is the brightest: it stays about level.
Each is a single steady sound, with no layers to mix.
The five sounds, darkest first
The shape is each sound's level in nine bands from 2 to 12 kHz; tilt is its slope. Negative is darker.
Copper noiseWarm and centeredTilt −5.0 dBper octaveOne steady soundHush Plus
Soft staticMuted and diffuseTilt −4.9 dBper octaveOne steady soundHush Plus- Warm staticRounded and gentleTilt −4.3 dBper octaveOne steady soundHush Plus
- Rose staticSmooth and warmTilt −3.8 dBper octaveOne steady soundHush Plus
- Velvet noiseSoft and balancedTilt −0.2 dBper octaveOne steady soundFree
Pink noise against other colours
Guides about pink noise
Noise coloursNoise coloursWhat each noise colour means, from brown to violet, which names have no strict definition, and how Hush's own noises measure.
SleepSound for sleepHow to choose a sleep sound you stop noticing, how loud to play it, and whether it should stop once you are asleep.Focus and noiseSound for focusSteady background sound can smooth over sudden noise while you work. Why steady beats eventful, how loud to play it, and using a timer as a work block.
Focus and noiseCovering conversationBackground sound cannot block voices, but it can make them harder to follow. Which sounds cover speech best, measured, and why louder is not the answer.Other sounds in Hush
Brown noiseThe deepest colour. Power falls by about 6 dB each time the frequency doubles.White noiseThe bright colour. Every frequency carries the same power.
Violet noiseThe sharpest colour. Power rises by about 6 dB each time the frequency doubles.Water soundsRain, surf, streams and fountains.
Nature soundsWind, weather and fire.
Home soundsFans, moving air and household machines.
Travel soundsCabins, carriages and roads at night.Questions
What is the difference between pink noise and white noise?
White noise has equal power at every frequency, which the ear hears as bright and hissy. Pink noise has equal power in every octave, so it sounds more even and less sharp.
Which pink noise sounds are free in Hush?
Velvet noise is free, with no subscription or account. The other four are part of Hush Plus.
How were these levels measured?
Each sound was measured in one-octave bands centred from 2 to 12 kHz, the range Hush uses for pitch matching. A level is given in decibels relative to that sound's overall level, so it shows the shape of a sound, not how loud it plays. The figures come from Hush 1.0.0 (9).
