Thanks Brent,
did u ever installed the Simple Tuner app on a Device (for example iPhone) yourself and tested it?
It is just not working correct! (Since Ever)
The Frequency may work but the Voluma is just jumping around as I described.
An accurate measurement is impossible. It always show negative values.
Just compare with native getvolume values from iOS/Android and u see what I mean.
If u look in the forum u find several guys who even did a case study with Charts and detailed describtion
about the Corona GetVolume Results and they say all the same…
if u like to develop an app like talking tom or anything that needs to work accuratly with the mic, its useless
See yourself the Demo and u will see not even the Demo VolumeBar does work 