Décibel (bruit) — Wikipédia

True wireless sports earbuds with Jabra ShakeGrip™

Noise meter 3.3 to 5.0V 30 to 130 dB(A) Analog output: 0.6 to 2.6V Linear conversion (dB A -> volts) High precision Easy to use

Sound level meter (Decibel-meter) - Gravity, Analog output

Fred Ward - Wikiwand

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Signal-to-noise ratio, Psychology Wiki