FocusTezWhite vs Pink vs Brown Noise for Studying
What noise colours are, how they differ, when each might help you focus, and how to use them safely.
Many people find it easier to focus with steady background sound. Some use music, but lyrics and changing melodies can pull attention away from reading or writing. A popular alternative is "coloured noise": white, pink and brown noise. These are random sounds with different balances of low and high frequencies. This guide explains the difference between them, when each might help, and how to use them sensibly while studying.
What "noise colour" means
Noise colours describe how a sound's energy is spread across frequencies:
- White noise has equal energy at every frequency. Because human hearing is sensitive to higher frequencies, it sounds bright and hissy, like an untuned radio or a loud fan.
- Pink noise has less energy at higher frequencies than white noise. It sounds more balanced and natural, similar to steady rain or wind in trees.
- Brown noise (also called red or Brownian noise, named after the physicist Robert Brown and the "Brownian motion" used to generate it) drops off even more steeply. It sounds deep and rumbling, like a waterfall heard from a distance, heavy surf or the inside of an aeroplane.
In FocusTez, all three are generated live in your browser using the Web Audio API, so there are no recordings to download and the sound never repeats in an obvious way.
Why background sound can help
Steady noise does not make you smarter, but it can make your environment more predictable. Sudden noises such as a door slamming, a conversation nearby or traffic tend to grab attention. A constant sound masks some of those changes, so they are less likely to break your focus. This is why many people find a busy café easier to work in than a nearly silent room where every small noise stands out.
Research on noise and concentration is mixed, and people differ a lot. Some find any background sound distracting; others work best with it. The only reliable way to know is to try it yourself.
When to choose each colour
- White noise is best at masking a wide range of sounds, including voices. It can feel harsh at high volume, so keep it low. It suits busy shared spaces, open offices and dorm rooms.
- Pink noise is a softer all-rounder. If white noise feels too sharp, pink is usually more comfortable for long sessions.
- Brown noise is the most soothing to many listeners because it emphasises low frequencies. It is good for masking low rumbles such as traffic or air conditioning and for long reading sessions. Try the dedicated brown noise page.
Natural soundscapes like rain, waves, wind and fireplace are built from similar noise ingredients shaped to sound more familiar. FocusTez lets you blend them: for example, brown noise with a little rain, or café murmur with a quiet fireplace.
Keep the volume safe
Background noise should sit underneath your thoughts, not on top of them. A good rule is to set it just loud enough to soften distracting sounds, and no louder. Listening at high volume through headphones for hours can harm your hearing. If you cannot hear someone speaking at a normal level next to you, it is too loud. Many health organisations recommend keeping personal audio at moderate levels and taking listening breaks; the Pomodoro breaks are a natural moment to remove headphones.
Noise and the Pomodoro method
Background sound pairs nicely with a timer. Starting the same sound at the beginning of every session can act as a cue that it is time to focus. Some people pause the sound during breaks, which makes the break feel distinct, and restart it when the next pomodoro begins. You can keep the white noise for studying page open with a timer running in the same tab, so the countdown appears in the tab title while you work.
Tips for using noise well
- Experiment for a few sessions. Try each colour for at least one full study block before judging.
- Use the master volume. Turn it down until you barely notice the sound.
- Mix sparingly. Two or three layers are usually enough. More can become busy rather than calming.
- Use the sleep timer if you also use noise to rest after studying, so it fades out on its own.
- Do not rely on it entirely. Noise helps with distraction from sound, not from your phone. Put the phone away too.
Who should be careful
If you have tinnitus, hearing sensitivity or any hearing condition, speak with a qualified professional before using noise for long periods. Anyone who finds noise uncomfortable, tiring or anxious should simply stop; silence or earplugs may suit you better.
Summary
White noise is bright and masks the most; pink is softer and balanced; brown is deep and soothing. None of them is magic, but any of them can make a noisy environment more predictable and easier to study in. Pick one, keep the volume low, start a timer, and see how your next session goes.