5 Vocal stems (1 + 4 doubles). All stems were intended to be identical by the singer. Many words don't align (they start and end at different times). Some have huge timing differences. All 5 performances needed pitch correction. For fun we turned some of them into harmony stems and added a few notes. Others were used as doubling stems for thickening. Slight inherent differences in pitch modulation create natural doubling - not machine like. And we used some special sauce with formant changes and syllable emphasis. We can do as much or as little as you like.
Voice doubling is an age old "trick" of many masters. The best way to do it is to sing the part again "on top" of the original. The second best way to do it is to double your original and insert very small timing, pitch and formant differences. We will analyze your stem(s) and we may ask you to double the vocals a couple times and send those too. And don't worry about timing differences - we can deal with those too.
Not autotune! Analysis of your vocal stems with consideration given to the relationship to your music stems is paramount. Sometimes it's better to be slightly sharp or flat! Sometimes that's where the "edge" is. Obvious pitch mistakes are corrected of course. Bending notes is also a specialty. Augmenting slides and changing slide timing is another possible correction/enhancement.
We all know it's important to follow the beat but seemingly subtle differences can make all the difference. We sometimes "push" the timing for emphasis. It's pretty amazing what we can do here.
Lot's of voices (especially untrained ones) have vibrato issues that make them sound "off". Flattening uncontrolled and uneven modulations will make for a solid more consistent vocal tone. You will hear the change, but it isn't fake.
It's true that we can create harmonies from your original vocal stem(s). Not all songs benefit from harmonies but a surprising number do. We will suggest and you can decide.