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Noi is a noise generator and nature soundscape player for Mac OS X. Noi resides in the menu bar to instantly block out your surroundings and help you relax. It can generate random white, pink, and brown noise. Free nature sounds can be installed within the app directly from the Internet Archive's public domain Sounds of Nature collection.

What's New

Version 1.0.3:
  • Drag n' drop custom sounds.
  • Improved brownian noise algorithm.
  • Usage tips in the About panel.
  • Soundscape list organizes by visibility and title.
  • Bug fixes, better error handling.
  • Included a relaxing classical music sample.
Version 1.0.1b:
  • Uninstall function now obtains administrator privileges as needed.
  • Minor run-time and GUI bug fixes.Improved error handling.


OS X 10.5.8 or later

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Noi User Discussion

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Runty Member IconReview+49

I love this app. Thank you.

-To layer sounds more easily than having to close the prefs window while preview is playing.
-To remember previously playing audio upon restart.

Noi kept hanging on my mac -- the icon was in the menubar but i could only get the beachball when hovering the pointer over it. I removed the Library/Noi folder and that fixed it. It may have happened because I manually removed some of the mp3s I had previously placed there?

Reply2 replies
Version 1.0.3

Well the hanging happened again. Looks like it happens when I run it without an internet connection. It keeps looking for the online sound library maybe.


@Runty- man, really sorry about that! Noi was built to handle being offline. But I was never able to do testing on any OS X > 10.5.8, so there the problem may lie. Can't continue development for various reasons :( But if anybody wants to fire up GDB and do some assembly hacking they have my permission.

Momijigari Member IconComment+32

I downloaded the very first version of Noi that was posted here and it was great, but since updating to Noi 1.0.3 it no longer remembers which of my sounds I've chosen to not be "Visible". Every time I restart all of them are visible, so I have to set the preferences over and over again.

This error did not occur in the previous versions.
I am using OS X 10.6.5.

Reply0 replies
Version 1.0.3
Mikilc Member IconComment+28

Isn't there enough noise in the world already?

Reply1 reply
Version 1.0.3

Too true. But when trying to concentrate, ocean waves can drown Grandma's oldies very nicely :-)

Monkeyjunkey Member IconReview+1409

To even out should JRodatus rating get deleted this is a fantastic app. Flawless, easy to use, does what it says. Works great. Would be great to see this become open source though.

Reply0 replies
Version 1.0.1b
JRodatus Member IconReview+4

This is the developer. Noi is tested only for Mac OS X 10.5.8. MacUpdate's screenshots suggest it may have bugs for other versions of OS X:

For example, there are 2 soundscapes packaged with the app, but the screenshots do not show them installed. Also, you might have to resize the settings window to make the scrollbar appear :-/

If you do or don't have these problems with your version of OS X, your input is appreciated.

Reply5 replies
Version 1.0

I'm on 10.8.3, MBPR. Seems to be working fine.


Thank you Lvdoc.


It's not proper for developers to rate their own software.


No kidding :) For some reason my browser wouldn't let me post a comment unless I gave it some rating... sorry about that. Please remove it if possible.


On 10.6.8 The program works fine. In fact, I've had it on all day now, testing and using every aspect of it without a single problem. It's a good and useful application; and a lot of fun once you begin testing the various sounds available from the archived link.

My regards and appreciation to the developer!

Thank you, JR ;-)


user icon+1409
Version 1.0.3
> 5 4


Current Version (1.x)


Downloads 938
Version Downloads 594
License Free
Date 31 Mar 2013
Platform OS X / PPC 32 / Intel 32
Price Free
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