Wonder Decibel

What it does

Wonder Decibel - Professional decibel meter for iOS with dBA/dBC/dBZ weighting, noise classification, waveform, FFT, spectrogram, logs, and PDF reports.

Wonder Decibel turns your iPhone into a portable acoustic lab: precise decibel readings plus plain-language noise levels—from “Quiet Library” to “Hazardous Noise”—so you know when to act, not just what number flashed on screen. Switch between dBA , dBC , and dBZ weightings for real-world jobs, watch waveform, FFT, and spectrogram views, log sessions with GPS and notes, capture photo/video proof with live SPL overlays, and export polished PDF reports for safety, venues, or neighborhood documentation. Turn raw SPL into human categories—from quiet spaces to hazardous noise—so non-experts instantly grasp risk, not just digits. Environmental and occupational work with dBA, industrial and…from wonderda.com

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