Sound Tools (SPL Sound Meter) description

Hobby sound pressure meter (SPL) for your device!
It has cool analog VU meter and oscilloscope.
It can be used to verify if sound is at same level for measuring loudspeaker response.
The app is intended for fun and it does not provide accurate measurement in decibels.
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Features:
■ 30 to 102dB range
■ local peek/max values display
■ response mode: fast/medium/slow
■ analog vu meter
■ digital vu meter
■ oscilloscope
■ support for tablets and landscape mode
■ chart
■ support for sending chart to email
■ support for calibration