The Sonnox VoxDoubler is presented as two separate plug-ins—Thicken and Widen—that focus on the two most common vocal doubling workflows. Vocal performances lies at the very heart of a song, and doubling vocals is an effective way of adding more contrast, drama, and presence to the story of your song. It’s therefore hard to imagine recorded popular music without the special quality that double-tracked vocals bring to a mix, either used over an entire track or just to help a chorus or key lyric connect with a listener. It is designed for vocals, but it can be used on instruments as well.