This app saved my files and times :)

I purchased this app because of my recorded lecture files which were really important to me.
The problem was that the voice of professor was too quite (I could not catch all sentences) even with max of my speaker volume
because I was sitting on behind of my class when it was recording.
I just dragged my file into program and click auto detect several times until the +dB does not change.
Then I could listen my lecture clearly enough :)

Sue sueee about Smart Gain