Sound Level Meter

What is Sound Level Meter?

Sound Level Meter uses your device's microphone to measure ambient noise in approximate decibels (dB). See a real-time gauge, waveform visualization, and min/max/average readings. Useful for checking room noise, comparing environments, or monitoring sound levels.

How to use

1. Allow microphone access when prompted — the tool needs it to measure sound.
2. Watch the real-time dB meter and waveform. The display shows current, minimum, maximum, and average levels.
3. Use the reference guide to understand your readings: 30dB (whisper), 60dB (conversation), 85dB (heavy traffic), 120dB (pain threshold).

Result

You want to check if your home office is quiet enough for recording. Start the meter — it reads 35-40dB average (quiet room). Turn on the AC and it jumps to 52dB. Now you know to turn it off before recording.

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