MDrumEnhancer from MeldaProduction is a plug-in that follows a drum track and synthesizes an additional signal using samples to enhance the original sound, without introducing any of the problems traditional drum replacement faces. Add snare noises, improve a bass drum's boom or snap, or even re-synthesize the sound completely.
The software doesn't suffer from latency, missed notes or non-existent notes, incorrect velocities, loss of dynamics, and other problems which can plague drum replacing. Simply select a preset or sample, and fine-tune a few parameters if needed. The plug-in can even be used in a live situation.
The pitch of the samples can be changed to tune it to the drum track, and it includes a full dynamic equalizer for adjusting the spectrum of the enhancement signal. A sustain control allows for making drum hits shorter or longer than they actually are, and can even provide reverberation.