iPhone app Decibel X: dB Sound Level Meter

Decibel X is one of very few noise meter apps on the market that has highly reliable, pre-calibrated measurements and supports dBA, dBC.
It turns your iOS device into a professional sound level meter, precisely measures the sound pressure level (SPL) all around you.
This extremely useful and beautiful tool will not only be a great tool 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 MAKE IT GREAT AND STAND OUT FROM OTHER APPS:

- Trusted accuracy: the app is tested and pre calibrated for all Apple devices.
The precision is matching with real SPL devices

- Apple Watch support: see noise level right from your wrist

- Health App integration: export noise levels directly into Health app

- Frequency weighting filters: ITU-R 468, A, B, C, Z

- 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

+ iCloud support which synchronize all history records across your Apple devices

+ Fullscreen mode to give overview the whole history of an record

- Dosimeter with NIOSH, OSHA standards

- Powerful calibration: Linear, Octave 1/1, 1/3, Load/save profile

- 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.

- InstaDecibel to capture your dB report overlaid on photos and easily shared via popular social networks (Facebook, Instagram, Messages, etc.).

- Support Live Activity, Dynamic Island

- Support both Portrait and Landscape layouts

- Beautiful, intuitive and carefully crafted UI design.
Themes: LIGHT, DARK and CLASSIC

OTHER GREAT FEATURES:

- Standard time weightings (Response Time): SLOW (500 milliseconds), FAST (200 milliseconds) AND IMPULSE (50 milliseconds)

- MIC Gain Offset from -50 dB to 50 dB

- Standard measurement range from 30 dBA up to 130 dBA

- HISTO graph for plotted history of the recorded values

- WAVE graph with 2 display modes: Rolling & Buffer

- SPECTROGRAPH

- 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

NOTES:

- Please do not expect a quiet room reading will be 0 dBA.
The range 30-130 dBA is the standard usable range and an average quiet room will be about 30 dBA.

- Although all devices are pre-calibrated, custom calibration is suggested for serious purposes requiring higher precision and accuracy.
You will need a real external device or calibrated sound meter as a reference, then adjust the trimming calibration until the reading matches with the reference.

* Privacy Policy: http: //www.skypaw.com/decibelx/privacy_policy.html

* EULA: http: //www.skypaw.com/decibelx/terms.html,

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