App: ProPhase
Developer: Katsura Shareware
Genres: Utilities, Music

ProPhase is a professional digital audio software tool that displays detailed information on the phase, 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 BlackHole. 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

Phase Display 

• Four different XY plot types 
• Line/Dots/Rainbow plot modes 
• Linear/Logarithmic scales 
• Gain control 
• Sample slice width control 
• Axis on/off 
• Grid on/off 
• Plot/Grid/Background colors 

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

Release notes:
• Disabled the tabbing mode, full screen, and tiling of the ProPhase window.