“Decibel X” is one of the few audio measurement apps on the market that offers highly reliable pre-calibrated measurements and supports frequency weightings: ITU-R 468, A and C, it turns your phone into a professional noise meter, specifically It measures the sound pressure level (SPL) around you. This very useful and beautiful tool will not only be an indispensable tool for many uses, but also bring you a lot of fun. Have you wondered how quiet your bedroom is or how loud a rock party or sporting event is? DBX will help you answer all these questions.

What makes dbX special:

– Reliable Accuracy: The app is thoroughly tested and calibrated for most devices. Accuracy matches true SPL devices
– Frequency weighting filters: ITU-R 468, A, B, C, Z
– Spectrum Analyzer: FFT and BAR graphs to display FFT in real time. These are very useful for frequency analysis and music testing. The dominant frequency is also displayed in real time.
– Powerful and intelligent management of historical data:
+ Recording data can be saved in the history recording list for future access and analysis
+ Each record can be exported as a high-resolution PNG graphic or CSV text via sharing services
+ Full screen mode to give full view of history history
– Dosimeter: NIOSH and OSHA standards
– InstaDecibel to capture your dB report overlaid on photos and easily share it on popular social networks (Facebook, Instagram, etc.).
– Beautiful, intuitive and carefully crafted UI design

Other Features:

Standard time weightings (response times): Slow (500 ms), Fast (200 ms) and PULSE (50 ms)
Tuning calibration from -50 dB to 50 dB
Standard measurement range of 20 dB to 130 dB
– spectrum diagram
– Plotted date of HISTO histogram for recorded values
– WAVE graph with two display modes: Rolling & Buffer
– Real-time ladder level graph
– Display Current, Average/Leq and Max values ​​with beautiful and clear digital and analog graphs
– Quick reference text to help you compare with real examples
– “Keep Device Stay Awake” option for long term recording
– Reset and clear current recording at any time
– Pause/resume anytime

Remarks:

– Don’t expect to read in a quiet room at 0 decibels. The 30dB – 130dB range is the standard usable range and an average quiet room will be around 30dB.
– Although most devices are pre-calibrated, dedicated calibration is suggested for serious purposes that require greater precision and accuracy. To calibrate you will need a real external device or calibrated audiometer as a reference, then adjust the cutoff value until the reading matches the reference.

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