remove isbtmalive, doesn't help and cause the android stuck when activity is destored.
define HAVE_PRIORITY_SCHEDULING for android

wonder why it wasn't defined in the first place?
jgorden skin parser crash fix
fully rewrited AAtube

frequency beyond 3150hz and below 640hz will not be affect by this dsp anymore

when a sample contain signals within the range, signals will be average out with its previous.(useing filter and muxed)

the range is counting downward from 3150hz to 640hz depend on the strength setting. 100% :(640hz-3150hz), 50%: (1895hz-3150hz)..etc