Decibel X - Pro Sound Meter 9.2.7

SkyPaw Co., Ltd – Freeware – Android
out of 9418 votes

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<p>"Decibel X" is a highly reliable sound meter app that sets itself apart from others on the market. It offers pre-calibrated measurements and supports frequency weightings including ITU-R 468, A, and C. With this app, your phone becomes a professional-grade sound meter that accurately measures sound pressure levels (SPL) in your surroundings.

This feature-rich tool is not only essential for various uses but also provides a lot of fun. Have you ever wondered about the quietness of your room or the loudness of a rock concert or sports event? "Decibel X" will help you find answers to these questions.

What sets "Decibel X" apart:

- Trusted accuracy: The app has undergone careful testing and calibration, ensuring precision that matches real SPL devices.
- Frequency weighting filters: ITU-R 468, A, B, C, Z filters provide accurate sound measurements.
- Spectrum analyzer: Real-time FFT and BAR graphs offer visual representation for frequency analysis and musical tests. The app also displays the predominant frequency in real-time.
- Powerful and intuitive history data management:
  + Record and save data for future access and analysis
  + Export records as hi-res PNG graphs or CSV texts for sharing
  + Fullscreen mode provides an overview of the entire history record
- Dosimeter: Compliant with NIOSH and OSHA standards
- InstaDecibel: Capture dB reports overlaid on photos and easily share them on popular social networks like Facebook and Instagram.
- Beautiful and user-friendly UI design

Other notable features include:

- 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 to 130 dBA.
- Spectrogram for visualizing sound frequencies.
- HISTO graph for plotting recorded values over time.
- WAVE graph with two display modes: Rolling and Buffer.
- Real-time scale level chart.
- Display of Current, Average/Leq, and Max values in both digital and analog layouts.
- Quick reference text to compare measurements with real-life examples.
- "Keep Device Stay Awake" option for extended duration recording.
- Reset and clear current recording at any time.
- Pause/Resume feature for flexibility.

Notes:

- A reading of 0 dBA should not be expected in a quiet room. The standard usable range is 30 dBA to 130 dBA, and an average quiet room measures around 30 dBA.
- Although most devices come pre-calibrated, custom calibration is recommended for serious purposes that require higher precision and accuracy. For calibration, a real external device or calibrated sound meter is needed as a reference.

If you find "Decibel X" useful or have any suggestions, please support us by rating the app and providing feedback.</p>

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