Learn how to cancel Decibel X PRO: Sound Meter subscription on iPhone, Android, Paypal or directly.
Table of Contents:
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Alternative method via AppStore:
1. 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, etc. ). - Please do not expect a quiet room reading will be 0 dBA.
2. 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.
3. 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.
4. "Decibel X PRO" 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.
5. "Decibel X PRO" will help you answer all of those. - Trusted accuracy: the app is carefully tested and calibrated for most devices. - Spectrum analyzer: FFT and BAR graphs to display real time FFT.
6. It turns your phone device into a professional noise meter, precisely measures the sound pressure level (SPL) all around you.
7. Have you wondered how quiet is your room or how loud is a rock concert or sport event?
8. This extremely useful and beautiful tool will not only be an essential gadget for many uses but also bring you a lot of fun.
9. Those are very useful for frequency analysis and musical tests.
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