Creating a noise meter with App Inventor
Author: Sergio Martin (smartin@ieec.uned.es)
Target: primary | secondary | tertiary
Technologies: mobile, noisemeter app
Creating a noise meter app
Understaning noise pollution
What is noise pollution?
- Not all sound is considered noise pollution. The World Health Organization (WHO) defines noise above 65 decibels (dB) as noise pollution.
- To be precise, noise becomes harmful when it exceeds 75 decibels (dB) and is painful above 120 dB.
Stop and think!
Hypothesis:
•Do you think you can create your own noise pollution meter?
Explore and investigate
Develop a noise pollution meter using App Inventor:
-
Watch this video
- Create your own noise pollution meter app with App Inventor
- Go on a field trip around your neighborhood to collect noise data
Compare, contrast, discuss, and find
- Reflect on the results
- Find out the reasons behind the different noise levels around your neighborhood
Reflect
- Is your noise meter working correctly?
- Have you found any noisy spots in your neighborhood?
- What is the reason of having those noise level there?
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