The Warp Region function, which is used when you wish to manipulate the pitch, time and level of notes/phrases in an audio clip manually, has also received some useful upgrades. These include the provision of new APT algorithms specifically for musical material (the software has its origins in dialogue replacement for film and TV), and the ability to map the timing characteristics from a guide part (as before) but later pitch-correct the output from that APT process relative to a reference scale rather than the guide. There have also been improvements to the process Synchro Arts call Audio Performance Transfer, whereby RVP imposes the pitch, time and level of one part on to another. Steinberg have also announced plans to implement it in an update of Cubase Pro 10 (and presumably in Nuendo too, at some point). At the time of writing, this includes Studio One, Logic Pro and Cakewalk, and it's already in beta for Reaper. Headline improvements include an ARA2 plug-in, which enables deeper integration with any DAW that supports that format. The version I evaluated for this review was v4.0.0.26, and I'll refer to it from hereon as 'RVP4'. Until now, the biggest leaps in Revoice Pro's evolution occurred during versions 3.0 to 3.3, and if you want to find out about how this software works more generally, check out Sam Inglis' review of Revoice Pro 3 ( and my series of Revoice Pro 3.2 workshops ( Revoice Pro 4 is the most significant update in ages, and I'll focus in this review on what's new. While the asking price of Revoice Pro is not exactly trivial, it could earn its keep very quickly in a professional music-production or film/TV post-production setting, whereas serious hobbyists might find that it leaves them with less 'left-brain work' to do, and more time to focus on the music. Of course, there's nothing in Revoice Pro that can't be accomplished manually in any half-decent DAW, but doing so takes time and effort. Cakewalk has had a VocalSync function for a while, and a vocal time-alignment facility was added in Steinberg's Cubase Pro 10 however, although the latter is impressive for a bundled DAW feature, I've not typically managed to achieve the same quality of results using that as I've obtained using Revoice Pro. There are plenty of pitch- and time-correction processors, of course, but only a handful that can generate convincing fake double-tracked vocals, and even fewer programs that can impose the timing of one vocal part on to one or more others. Revoice Pro is one of those rare applications that's genuinely unique: no other software or hardware is capable of doing everything it can do. The latest version of Synchro Arts' Revoice Pro brings many new features, including improved algorithms and deeper DAW integration.

Revoice pro 4 apt too many artifacts