The Nembrini Audio Doubler tracker turns your guitar performance into a stereo, double-tracked signal in real time, as if two guitarists were playing the same track left and right. Nembrini Audio Doubler is a plug-in designed to enhance your guitar, vocal or polyphonic instrument with a natural doubling effect, adding richness and depth. - Makes your guitar riffs and solos sound massive - Double vocal parts and polyphonic instrument automatically - Add flam-like effects to drums Just put Nembrini Audio real-time Doubler tracking plugin on your track, and adjust the variation parameters controls to create exactly the doubling effect you’re looking for Instant doubling. Works as a standalone app, AudioUnit v3 effect, or Inter-App Audio effect