Decibel X - Pro Sound Meter

Contains ads
4.0
8.94K reviews
1M+
Downloads
Content rating
Rated for 3+
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About this app

"Decibel X" is one of very few sound meter apps on the market that has highly reliable, pre-calibrated measurements and supports frequency weightings: ITU-R 468, A and C. It turns your phone device into a professional sound meter, precisely measures the sound pressure level (SPL) all around you. This extremely useful and beautiful sound meter tool will not only be an essential gadget for many uses but also bring you a lot of fun. Have you wondered how quiet is your room or how loud is a rock concert or sport event? "Decibel X" will help you answer all of those.

WHAT MAKES "DECIBEL X" SPECIAL:

- Trusted accuracy: the app is carefully tested and calibrated for most devices. The precision is matching with real SPL devices
- Frequency weighting filters: ITU-R 468, A, B, C, Z
- Spectrum analyzer: FFT and BAR graphs to display real time FFT. Those are very useful for frequency analysis and musical tests. Real time predominant frequency is also displayed.
- Powerful, smart history data management:
+ Recording data can be saved into a list of history records for future access and analysis
+ Each record can be exported as hi-res PNG graph or CSV text via sharing services
+ Fullscreen mode to give overview the whole history of an record
- Dosimeter: NIOSH, OSHA standards
- InstaDecibel to capture your dB report overlaid on photos and easily shared via popular social networks (Facebook, Instagram, etc.).
- Beautiful, intuitive and carefully crafted UI design

OTHER FEATURES:

- Standard time weightings (Response Time): SLOW (500 milliseconds), FAST (200 milliseconds) and IMPULSE (50 milliseconds)
- Trimming calibration from -50 dB to 50 dB
- Standard measurement range from 20 dBA up to 130 dBA
- Spectrogram
- HISTO graph for plotted history of the recorded values
- WAVE graph with 2 display modes: Rolling & Buffer
- Real time scale level chart
- Display Current, Average/Leq, and Max values with both nice and clear digital and analog layouts
- Quick reference text to help you compare with real-life examples
- "Keep Device Stay Awake" option for long duration recording
- Reset and clear current recording at any time
- Pause/Resume at any time

NOTES:

- Please do not expect a quiet room reading will be 0 dBA. The range 30 dBA - 130 dBA is the standard usable range and an average quiet room will be about 30 dBA.
- Although most devices are pre-calibrated, custom calibration is suggested for serious purposes requiring higher precision and accuracy. To calibrate, you will need a real external device or calibrated sound meter as a reference, then adjust the trimming value until the reading matches with the reference.

If you like it or have suggestions, please support us by rating and giving us comments and feedback.
Updated on
Mar 12, 2024

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
This app may share these data types with third parties
Location, App activity and 2 others
No data collected
Learn more about how developers declare collection
Data is encrypted in transit
Data can’t be deleted

Ratings and reviews

4.0
8.65K reviews
Stanford Locke
March 21, 2024
Im older. Took me awhile to figure it out and use properly. Excellent ap. I recommend it to everyone trying to reason with modern pastors about sound damage to ears etc.
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SkyPaw Co., Ltd
March 23, 2024
Thank you for your feedback. It's lovely to hear how Decibel X assists your daily work on a daily basis.
Egon Glavas
March 25, 2024
It is reading 111db when I am talking and constant 50db in complete silence. Something is off, maybe its not the app however for me its not working.
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Chris Hutchison
January 2, 2024
Stellar app, best in its segment imo. Not sure why the sub 4 star rating currently (Jan 2024), maybe it was buggy in the past? Regardless this app is great. Can record actual data, easily download it. And cool features like video recording with sound level overlay. Price is reasonable too. Recordings are limited to 3 min otherwise, ads are not intrusive. Incredible!
8 people found this review helpful
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SkyPaw Co., Ltd
January 17, 2024
We are glad 😀 that our Decibel X suits your needs. Hope you continue having decent experiences with us, and yes we love hearing more stories from you!

What's new

∿ Fix a crashing issue when selecting language on newer devices
∿ Fix some UI issues
∿ Reduce app size and optimize performance
∿ Components upgrade
∿ Various performance improvements and minor bug fixes