Metering Cockpit vs RME DigiCheck NG

Metering Cockpit is a loudness metering plug-in for mixing and mastering, with a frequency analyzer and monitoring aids. Its displays cover loudness, peak level, dynamics, spectrum, stereo correlation, waveform, and loudness history. Loudness measurement follows BS.1770-4, and loudness range measurement follows EBU R128. The fractional-octave analyzer spans 1/1 to 1/24 octave and can show raw FFT bins. For reference monitoring, users can load a file, compare it with a mix, and set its listening level independently. The plug-in adds no latency and leaves audio unchanged unless a frequency band is soloed or the reference is playing. It works in hosts that load VST3 or AU. macOS 11 or newer is required, with VST3 and AU formats; 64-bit Windows 10 or newer supports VST3. The macOS installer is signed and notarized. The plug-in is free for private and commercial use, with no registration or time limit. Reference files are limited to ten minutes because they are converted to the session rate and held in memory.

RME DigiCheck NG has no write-up on Specifiction yet; its figures are above.