My S5 S Voice says another app is using the mic, how can I find out which app it's using?

[AC Question]

s5 s voice says another app is using mic and i cant find which one is using

galaxy s5 using nova settings

 

[B. Diddy]

Re: s5 s voice says another app is using mic and i cant find which one is using

Welcome to Android Central! It might be Google Now. Open your Google Settings, tap Search & Now>Voice>"Ok Google" Detection, and turn off "From any screen."