Noise Generator: Full Spectrum

Noise Generator: Full Spectrum

Generate Audio Color Noises

2K ratings
155 reviews
Free
With Ads

Details

  • Released
  • Updated
  • March 3, 2017
  • August 5, 2026

Features

Noise Generator: Full Spectrum screenshot #1 for iPhone
Noise Generator: Full Spectrum screenshot #2 for iPhone
Noise Generator: Full Spectrum screenshot #3 for iPhone
Noise Generator: Full Spectrum screenshot #4 for iPhone
Noise Generator: Full Spectrum screenshot #5 for iPhone
iphone
ipad
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About

Generate a variety of custom color noises, including brown, pink, white, blue, and violet. Fine-tune your audio experience with low and high cut filters. This app offers a simple interface that remembers your settings for quick, personalized sound generation.

Generate brown, pink, white, blue, and violet noise
Low and high cut filters for customization
Simple interface remembers settings
Advanced mathematical formulas for audio generation
AirPlay support for external devices
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What users say

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+1

What's New in Noise Generator

5.0.4

August 5, 2026

What's New in 5.0 • All-new audio engine built for smooth, gapless playback • Sound is generated in realtime — changes apply instantly without restarting playback • Bug fixes

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User reviews

Wow… what happened to this app???

never thought I’d write a review like this. Noise GEN is many people’s go-to every single day. Great for blocking out background noise to focus on studying, for sleep, or fine-tune specific sound colors for sensory relief, this app was an incredible, lightweight piece of audio software. It felt like it was built by people who genuinely understood sound and cared about its users.
Then came the most recent update, and it completely ruined everything that made this app special.
First, the underlying noise generator itself is broken now. the frequencies aren't being portrayed or synthesized accurately anymore, resulting in loud, sharp, and harsh noise profiles instead of proper frequencies. every range sounds like white noise now.
On top of that, changing the frequency slider from an exponential scale to a linear scale is a devastating UI downgrade. Frequencies and human hearing don't work linearly. Switching to a linear slider completely destroys the precision control over lower and mid-range frequencies, making accurate adjustment virtually impossible. they even removed the stereo balance control entirely. stripping away a basic, essential feature for anyone who needs spatial adjustment or targeted sound tuning.
To top it all off, the app has been bloated with ads. they now physically clutter the lower bar of the app.
It breaks my heart to see a tool that was once crafted with technical care stripped down and monetized at the expense of functionality. Until the audio engine is fixed, the exponential slider is restored, and the ads are removed, I unfortunately can't recommend this app to anyone anymore. Goodbye, Noise GEN.
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Good while it lasted

The latest update broke this app. The high pass filter is messed up now, and seems to be letting through frequencies way above what it’s set to. What used to be a soft, low rumble is now a sharp, hissing assault on my ears. It’s an obvious night and day difference between the two versions, using the same saved preset. Changing the volume also seems to change the high pass frequency too, which makes no sense. Overall just a really sloppy lack of QA testing. I can’t get it to sound right after 10 minutes of fiddling with the sliders, so now I have the joy of looking for a replacement at midnight while I’m traveling. I guess nothing good lasts forever. Word of advice to the devs: If it’s not broken, don’t fix it.
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Something changed

Something changed in the latest update. Volume control no longer works and it hangs my phone. Ads are more instrusive too. Deleting asap.

Reduced functionality

Now the frequencies go up in increments of one i cant use the arrows to get a precise frequency quickly. It used to go up in 10 which made it easy to tap to the right frequency, now i have to resort to the slider which is not accurate or the arrows which take forever now.

Exactly what I need

Nothing complicated, just a noise generator that runs when my phone screen is asleep

Developer apps

User experience

🐞

Reported Bugs

3 issues

Scrolling issues on iPhone 13 Pro

Bug

Beeping noise looping in background

Bug

Stops playing when app is in background

Bug

Requested Features

5 requests

Add green noise option

Feature

Ability to save custom presets

Feature

Include a sleep timer

Feature

Landscape mode support

Feature

Equalizer/smoother frequency controls

Feature

FAQ

What does the Noise Generator: Full Spectrum app do?

This app generates various custom color noises such as brown, pink, white, blue, and violet. It allows users to further customize these sounds using low and high cut filters, and offers AirPlay support for playback on external devices.

What are the benefits of using this app?

Listening to the generated noises can help with sleep by blocking distractions, pacify babies, reduce stress, increase focus, enhance privacy, and soothe headaches or tinnitus. The app's customizable nature allows for personalized soundscapes to meet specific needs.

How do I use the app to generate noise?

You can select a sound color by dragging the Sound Color slider. Then, use the low and high cut filters to further customize the audio. Adjust the device volume with the on-screen slider and toggle playback using the Play/Pause button.

Is this app free to use?

The application is free to download and use. While the description mentions 'no audio files included in the application binary', it also states 'hasAds': true, indicating it is a free app supported by advertisements. There is no mention of in-app purchases or subscriptions.

What are the different sound colors available?

The app offers white noise (equal energy across all frequencies), brown noise (more energy at lower frequencies), pink noise (upper frequencies fall off slower than brown noise), blue noise, and violet noise (more energy at higher frequencies).