Features:
1. Measurement of peak, average and instant maximum sound level in dB
2. Frequncy spectrum
Operation:
To reset the peak and average, please touch the root of the needle in the meter.
Version 1.08: fixed audio record fail when microphone permission is disabled.
Version 1.04 new features:
1. add 24 bands of frequency spectrum display: double tap the frequency chart.
2. add time chart vs sound dB level: swipe the frequency chart left to view time chart.
3. Tap the Average number box to reset the peak and max. values.
9Apps 4.9
