The three NUGEN processors are the VisLM loudness meter available as a plug-in and standalone app, the ISL limiter plug-in and the standalone/AudioSuite LM-Correct software. I keep LM-Correct in my Mac's dock set to ITU-R BS 1770-4 (the loudness standard used by Netflix) to analyze and process any recorded audio file(s) in faster than real-time.

The included DynApt extension adds immediate correction of LRA (Loudness Range Average) and provides an updated loudness parameter called Dialogue LRA that maintains dialogue intelligibility even through intentionally quiet dramatic transitions.

Just click on "File" and navigate to the desired audio file and click on "Analyze" and within seconds, you'll have a measurement of True Peak, Integrated Loudness and more relative to the Target standard. Click on "Correct" and the file will be processed to the target and saved to source's folder.

I have previously covered NUGEN Audio Loudness Toolkit 2.0 in these pages and I wanted to update the changes and additions in specifications--namely Netflix streaming. The VisLM loudness meter plug-in gives me a real-time loudness history locked to time code in Pro Tools. I liked "flagging" suspect True Peak moments for dealing with later.

The best workflow is to use the NUGEN Audio ISL on your mix bus to limit your final levels to Netflix's spec. ISL is an inter-sample (aware) True Peak limiter for controlling up to 7.1.2 channels of surround or ATMOS immersive audio.

The NUGEN Audio Loudness Toolkit 2.8 bundle sells for $899 and has become part of my quality assurance routine when providing mixes for eventually streaming for Netflix or any of the music streaming services directly.