Allow setting numeric dpb threshold for marking hits.
Allow setting numeric dpb threshold for marking hits.

The "depth per byte" value is fairly meaningless, but it is
an okay indicator of how likely you are to be listening to
something other than silence. This commit adds a text box
where you can set the minimum dpb value for identifying a
scan hit.

rikus--/bc125at-perl,rikus--/bc125at-perl,rikus--/bc125at-perl