AB Assist 2: Audio Comparison Tool by NUGEN Audio Free Download

The core job of AB Assist 2 is to make A/B comparison faster and more reliable. You can receive and compare four audio sources, which is useful when a mix has gone through several revisions or when you are weighing several plug-in options against each other.

Test mode labels the channels randomly. That removes the guesswork about which version you are hearing, so you can judge the sound rather than the name on the track. NUGEN Audio says the tool is meant to remove subjectivity and biases from quick comparisons.

Smooth fades between sources help the switch feel natural rather than jarring, which makes subtle differences easier to hear.

Level differences are one of the most common reasons a version sounds better when it is simply louder. AB Assist 2 includes auto-level-match, which matches the short-term loudness (LUFS) of the sources so you can compare them on equal terms.

The mono-check feature lets you compare a mono fold-down, a useful step when you need to confirm that a mix holds up in mono. Surround mixes can be compared in any channel count.

For multiple plug-in instances, the instances communicate directly rather than through an external send, which keeps the setup simpler when you are comparing plug-in options.