What is Brown Noise vs White noise vs Pink Noise: Major Differences

What is Brown Noise

Many of us are struggling in a noisy surrounding while sleeping or either studying and tried multiple ways such as soundproofing a room or using earplugs but very few tried the noise, do you know what is Brown Noise or Pink noise or white noise?

How such noises can help you to overcome the surrounding noise and you can sleep without an issue?

If not then this guide is to give you complete ideas on differences among the brown noise vs pink noise vs white noise and which one is effective in which type of noisy surrounding.

I have been struggling with this a lot during my college days due to noisy roommates and was not in favor of using earplugs, I was searching for ways on how to sleep without earplugs.

During that research, I learned a lot about types of noises especially what is Brown noise, white noise, and pink noise and after use of them, the results were amazing.

If you really suffered from the same type of issues then makes sure to learn all about the types of noises, I imagine you are already aware of the noise.

What is Brown, White and Pink Noise?

Do you know the reason behind you are unable to concentrate is not the noise itself but this is due to the change in noise, the person sleeping beside you while snoring or dogs barking in the nearby street are the best examples for change in noise?

Hence use of different noises can help you to mask all those unwanted noises and gives you a common noise all the time which makes your sleep better or increase focus in your studying or working.

Before moving forward, let me clear your thought on the light waves and sound waves as both move in waveform but the sound waves need a medium to traverse and light waves can travel in vacuum.

I also suggest you be aware of Octave the basic term used in the acoustic, is the band of frequencies which highest frequencies are twice as the lower frequencies.

The noise is of different types but most of the people use three types of noise as explained below.

What is White Noise?

White noise gets its name from the white light as it is the combination or mix of all the frequencies of soundwaves and that is why many people use this as to mask the other soundwaves.

You can imagine white noise as the multiple things going together and generating their own frequencies and if you combine them all the ultimate result is white noise.

White noise frequencies range in between 20-20,000 hertz, which includes everything which human ear can hear and it is like white light which is a combination of every visible wavelength of the light.

That means it is the combination of 20,000 different Tunes which human ear can hear or mind can perceive.

For example, in old TVs or radio, while there was no broadcast on the TV or radio you probably heard the sounds of pixels moving on the screen like hisss sound, that was white noise.

While taking a few other examples like rainfall or ocean waves or wind or fan sound, these also closely resembles with the white noise because you are hearing the combinations of different sounds.

In the case of White Noise, you probably heard the higher frequencies sound louder as compared to low frequencies, which are sometimes annoying or may be pleasant.

The scientific reasons behind that are higher octaves contain more frequencies as compared to the lower hence, imagine how many frequencies it could hold at 20,000 Hz which in result louder noise.

If you don’t know then there are a lot of industries built around the production of white noise because research reveals the productivity or efficiency of work or focus increases with the use of white noise.

What is Pink Noise?

Pink noise is the part of the white noise and it also ranges its frequencies in between 20-20,000 hertz but here the major difference is with the power distribution among the frequencies.

Where white noise has equal power throughout the whole frequencies which cause louder noise at higher frequencies however pink noise is not having the same power for all the frequencies.

For higher frequencies, it cut the power per hertz, which in result no extra loudness at higher frequencies or it has high power at low frequencies and low power at high frequencies.

Technically how this power will be balances throughout with the increasing frequencies is by increasing the successive octaves which can contain more frequencies in it and balance the power with low frequencies octaves.

Well in recent days pink noise has widely popular in business usage because of its increased productivity in masking low-frequency noises and increasing productivity.

Pink noise is mainly used to test the loudspeakers and for sound equipment equalizes and it’s frequency match with the brain waves which help for positive sleep in general.

What is Brown Noise?

Brown noise deeper than both pink and white noise and it is the combination of white noise, pink noise, and blue noise and somewhere close to white noise.

It was actually named in the name of the botanist  Robert Brown in the 1800s and it is also known as Brownian noise because of change in sound signal from one to other at any random moment.

White noise power remains the same throughout the octaves and pink noise power reduces as the frequencies got increased but brown noise is bit different or inverse where its power got decrease significantly as the frequencies got the increase.

Means it has higher power at lower frequencies which somewhere resemblance with red noise as its frequency is low.

To experience a brown noise you can hear the noise coming from the waterfall. Brown noise is not easy to reproduce as the sound engineers have to use each sample to create the next one with an addition of randomness.

What is Blue, Violet, and Gray Noises

Well. in most of the cases we have heard or talked about what is brown noise, pink and white noise only but there are few others which also play an important role in masking the surrounding noises.

What is Blue Noise?

Blue noise is like the inverse of pink noise where its power or energy of the signal will increase as the frequency of the noise got to increase.

Means you will feel louder at the highest frequencies. while referring to the proportion of the energy increased every successive octave is 3 decibels.

Which in result each octave will have as much energy as the two octaves below it combines where an example of blue noise is the hissing water spray.

Blue noise is like blue light in the light spectrum which has higher frequencies and mostly used to minimize distortions during sound mixing in the audio track.

What is Violet noise?

Violet noise is like the blue noise where its power gets increases as the frequency of the noise get the increase.

While comparing with Blue noise, its energy increase for successive octaves up to 6 decibels.which means its lower end is slightly higher as compared to blue noise.

What is Gray Noise?

Gray noise is pleasant to hear and calibrated in the same way to maintain the noise sound the same as the pink noise.

It is close to the white noise but tuned specifically to the human ear so specially used in studies, how particular person hearing reacting differs from others.

Its lower end of the frequencies spectrum is more powerful as compared to middle or higher end and allows higher frequencies to maintain the equal power which makes it’s more pleasant to hear with the human ear.

Well, there is no direct example to explain the gray noise but somewhere you can hear it as the distant thunderstorm.

Usage of All These Colored Noises?

Well, we have learned almost every most possible best noise types and their usage but do you really know how this all noise going to work and what color of noise is best while studying or working?

Let imagine you are seating in a room and communicating with a person then you can easily hear his voice and if later one other person joins you then you can easily differentiate who is talking what.

But what if you are in a group chat of more than 100 people than that conversation changed in roar noise and if one new person joins, you won’t feel any differences because of our brain is unable to detect the differences.

Our brain always sense the change in noise even if it is a small but what if you can give him the constant noise?

It is the same case with the use of white, pink, brown or any other Noise generation machine(Amazon) use as they give you a constant noise which matches with the brain waves.

If something change to the outside noise, it won’t impact the noise your brain is already sensing from the beginning you have slept.

Here are the best example of noises you can use in daily life.

Help you to sleep in Noisy Surrounding

White noise is the perfect choice while sleeping overnight make sure to have white noise in the louder voice as it has the capacity to mask any noise coming while you are sleeping.

During night sleep there might be the case that you wake up with sudden loudness of the external noise and that will be taken care of while sleeping with white noise.

If you are interested in buying such White Noise source there are few worth looking Best White Noise Generation machines (Amazon).

Get your Focus while Studying

This especially works for the students who are living in a noisy area and unable to focus on studying and searching what color noise is the best for studying?

In most of the cases, fairly recommended going with the white noise as it is more perfect to mask any noise coming while you studying.

It also depends on the loudness of the noise to which environment you are studying and according to that you can increase or decrease white noise loudness as per the surrounding.

During Writing 

If your job is consistent writing then it is recommendable to use the pink noise as research found that it helps to cut down the distractions while pauses during the writing or talking.

Hearing Disorder investigating

It is the case where you can use Grey noise as it has the ability to caliber according to normal hearing and this can be very easy to find the hearing disability of any human beings.

In such a way there are multiple uses of noises and you can experience their own by setting up according to your surrounding.

My View on Brown Vs Pink vs White Noise

Our human brain reacts according to the noise, it hears from any source even during the night when the fall of water drops from the tap can break your sleep because there was some change in noise level.

To have all these noise generation sources, can help you better to not distract your mind from what it’s doing.

It has been observed in lot many industrial spaces the productivity or creativity got increased due to the implementation of such noise generation machines.

At a small scale, you can have a temporary solution for noise generation using free mobile apps else you can check the noise generation machine suggested in the same guide.

I imagine you got a detailed idea on what is brown noise, white noise, pink noise and a few other noises and their usage.

Make sure to share your experiences and views later in the comment box to help our readers on what types of noise you are using and for what reason?

Hey, I am Kirtish Vyas a YouTuber and believer in making life peaceful, a couple of years back I started soundproofing my house, bedroom, studio, and Car to reduce the unwanted noise, and the same experience I am sharing on SoundProofidea. Read More