‎Decibel X:dB Sound Level Meter on the App Store

‎”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 beaut…

Source: ‎Decibel X:dB Sound Level Meter on the App Store

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