ProLevel is a professional digital audio software tool that displays detailed information on the levels and mono compatibility of stereo audio signals in real time. FAQ: Can I monitor the audio outputs from iTunes, GarageBand, Logic, Final Cut, Pro Tools, etc.? Yes. With a help of third-party audio routing software such as Soundflower. See the forum "ProPhase Support" for detail. ? Multiple windows (any two channels of any audio input devices) ? Resizable windows ? 30 frames per second responses ? Save settings as a document ? Speak peak levels and clip status ? Floating window option ? Transparent window option Level Meter ? Peak and RMS level meters ? Peak hold/decay ? Sum/Difference meter ? Correlation meter ? Clip indicators with consecutive clipped sample count ? Label text ? Clip, Warning, Caution levels