Monitor classroom noise levels with visual and audio feedback.
Users
136
+7 in 30 days
Rating
5.0 / 5
unchanged in 30 days
Ratings
2
0 in 30 days
Store rank
#74K
#62K among extensions
Version
1.0
updated 17 Mar 2025
Users
monthly, 2 years
Latest, 15 Oct 2026:136 usersMove the mouse over the chart for any month
Ratings count
monthly, 2 years
Latest, 15 Oct 2026:2 ratingsMove the mouse over the chart for any month
The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.
About Noise Level Monitor
This extension is developed for teachers, to help them keep the noise in the classroom at a decent level, using gamification.
==How does it work==
For each minute the noise level is under the set threshold, you receive a smiley.
For each minute the noise level is higher than the threshold, you receive a grumpy.
Total number of points is total smileys - total grumpies.
First, you have to set the desired threshold (from 0 to 120dB) in SETTINGS.
Then, you can specify if you want also a background noise (white noise, brown noise, waves) or not.
When the class starts, press START.
For each quite minute, the class receives a smiley.
For each minute when the noise is higher than the threshold, the class receives a grumpy.
This way, the kids are motivated to keep the noise level down.
I hope this helps :)
No external code.
No spyware.
This extension is developed by Kidibot Educational Platform.
If you like it or not, please send your feedback at www.kidibot.ro/contact or www.kidibot.com/contact.
Growth
Window
Users
Change
Ratings
Rating
7 days
−1
−0.7%
0
0.00
30 days
+7
+5.4%
0
0.00
6 months
+22
+19.3%
0
0.00
1 year
+67
+97.1%
0
0.00
Chrome Web Store search rankings
Where Noise Level Monitor appears when people search the store, with the 30 day change