Decibel - Threshold Sound Mete

3.8
531 reviews
100K+
Downloads
Content rating
Everyone
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About this app

Decibel - Threshold Sound Meter is an app that measures the environmental noise in decibels (dB) and visualizes it on a clean and tidy graph.

A loud noise will be harmful to both your physical and mental health. You should avoid exposure to those environments. Let our sound meter help you detect those environments. Don't hesitate to download Decibel - Threshold Sound Meter to protect your and your family's health.

Features:
- Decibels indicator (dB) in real time.
- Show the reference value for each type of environment as the sound level we are
measuring.
- Calibrate decibels to adjust the microphone for every phone.
- Gives a real-time graph for the sound detected by the microphone.
- Gives two types of notification options to the user- sound and vibration.

You can also use the app for a handful of use cases. For instance, effectively measuring the dB levels in and around educational and medical institutions and know if they exceed the permitted levels.

SOUND METER LEVELS

120dB - Threshold of pain, Thunder
110dB - Concerts, Screaming Child
100dB - Motorcycle, Blow dryer
90dB - Diesel truck, Power mower
80dB - Loud music, Alarm clocks
70dB - Busy traffic, Vacuum cleaner
60dB - Normal conversation at 3ft
50dB - Quiet office, Moderate Rainfall
40dB - Quiet Library, Bird Calls
30dB - Whisper, Quiet rural area
20dB - Rustling leaves, Ticking watch
10dB - Almost quiet, Breathing

Caution:
The value of sound meter is not as precise as an actual Sound Pressure Level Meter (SPL meter) sound meter, this is due to most device's microphone are aligned to the human voice. To fix this, use an actual sound meter or Sound Pressure Level meter (SPL meter) to adjust decibels error as close as possible before use. If you didn't own an actual Sound Pressure Level meter (SPL meter), go to a very quiet place where sound cannot hear and adjust the reading value to 20~30dB.
Updated on
Jun 17, 2019

Data safety

Developers can show information here about how their app collects and uses your data. Learn more about data safety
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Ratings and reviews

3.8
519 reviews
Americo Castellanos
July 31, 2020
This tool is okay for a relative level measurement. From my test performed, the issue is not the app as I see it but the dynamic range of the phone's (or tablet) microphone. I used a better quality sound level better and tested it at different frequencies and noticed that the readings on both meters separate apart at around 10 dB or higher. You may attain a better reading if you can calibrate it at a known frequency of what you are sampling. I used a Shopvac to calibrate the app.
17 people found this review helpful
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Anirudh Sharma
September 25, 2020
Hi Americo! πŸ‘‹ Thank you for taking out time to review our app. We also encourage our users to calibrate our app for best results. We're happy that you liked it 😊.
A Google user
November 14, 2019
I'm impressed 😯. I really found this app that has good improvements and also good quality. It's okay of an app that has ads, even though I'm using it for not only on how loud it is around me but it is useful for school or universities, some students talked loudly. So, I highly recommend this app for my friends who does to avoid loud noises. Especially our hearing, we don't want to make loud noises, it's brilliant! Hopefully, more updates to come! And I love it, thanks. 5-stars, no negatives.
24 people found this review helpful
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Anirudh Sharma
November 14, 2019
Hi Alexander! Thanks for your kind words. We're glad that you liked our app πŸ˜ƒ. We'll definitely try to provide full support to this application in future. Thanks for reviewing our app.
Jesse Searls
September 27, 2022
Pretty good, and I'm experienced in sound spectrum measurements. The average function needs to be improved as it doesn't reset when you reset the sample. Otherwise, it's very good and use it often. From measuring the noise generated by machines to the quiet of night.
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What's new

NEW UPDATE:
- bug fixes and improvements
- play saved recordings even when the screen is off.
- keep the screen on while measuring sound.

OLDER UPDATES:
- remember previously set threshold and calibration values.
- added history section to store all your previously saved recordings and their data.
- sort saved recordings based on their creation date, minimum, average or maximum dB by pressing on the table column in the history section.