TransGainer, an audio plug-in suitable for a wide range of professional music production uses, implements an audio signal envelope adjustment algorithm that reacts on transients rather than on a signal's loudness level. This algorithm allows you to adjust the volume of attack and sustain stages of any sounds you use it on. TransGainer was designed in a way to be suitable for all possible sound sources – be it individual tracks or full mixes.
In many cases TransGainer can be used in place of gate and expander plug-ins while delivering a better sound and offering an easier control. Beside that, TransGainer can be used for audio recording restoration/re-mastering purposes and reverb tail modifications with excellent results, according to Voxengo.
TransGainer allows you to specify gain adjustments for a sound's transient and sustain stages separately. You can also choose an expected average time between transients so that algorithm delivers you the most precise results possible.