mvMeter

mvMeter is a multivariable meter including RMS, EBUR128, VU and PPM measurement.

• behavior of classic analog VU and PPM meters
• multiple measurement modes: PEAK, RMS, EBU R128, VU and PPM
• multi channel metering: stereo, left, right, mid, side channel
• large and accurate live meters
• adjustable pre-gain, automatic gain staging
• 64-bit internal processing
• 3 different meter themes
• GUI resizing up 400%, ready for 4k displays

http://www.tb-software.com/TBProAudio/mvmeter.html