September 23rd, 2021
Pitch-shifting is often thought of as either a correctional tool, or a dramatic production trick, but there are many more subtle ways that you can use this process to improve your mix. In this article, we talk you through four of these techniques.
Try copying your lead vocal onto two new, separate tracks. Pitch one of these up an octave, and one of them down an octave. Put each of these new tracks through the same FX chain as your lead vocal, and pan them to the same point in the mix (usually the center).
One at a time, bring up the faders on these new, pitch-shifted tracks and add them subtly to the mix. The pitched-down track should add body to the vocal, whilst the pitched-up track should add a sparkly sheen to the top end. This trick is used a lot in really polished, pop productions. Just be careful with it; you shouldn’t obviously hear the pitch-shifted tracks.
Again, this is about adding body with a pitched-down double. If your snare feels a little thin, try copying it onto a new track that you then pitch down and subtly add into the mix. Pitch it down by an amount that works harmonically with the original snare; a third, a fifth, an octave etc.
Here, we use micro pitch shifts to create a wide chorus effect that effectively thickens your vocal sound. Again, this is a trick that has been used on countless hit records. Copy your lead vocal onto two new tracks, which you pan all the way to the left and right. Pitch one of these down by 10 cents and the other one up by 10 cents
Filter off the top ends of your pitch-shifted vocals, and put them through a 10ms delay. Again, bring the faders for these new tracks right down, and bring them up again slowly, gradually adding a subtle amount of the chorus effect to your lead vocal. This process takes advantage of the Haas Effect; when a sound is followed by another sound separated by a sufficiently short time delay (below 25ms), listeners perceive a single fused auditory image and not two separate sound sources
We, therefore, hear all three vocals as one sound source, which now sounds wider and thicker than it did before.
You can use the trick discussed in point 3 on other elements of your mix as well. Using the same trick on key musical elements, such as synths or guitars, can add life and body to your mix as a whole. You can create this effect manually, as described above, or you can use certain plug-ins to quickly perform the same kind of process.
This thickening effect that we’ve demonstrated was first created back in the ‘80s with the Eventide H3000 Ultra-harmonizer, and there are a number of plug-ins that now mimic this hardware. Eventide makes an emulation themselves, and also includes a ‘micro pitch shift’ feature on their UltraChannel plug-in. A much cheaper, but still very good option, is SoundToys Little MicroShift.
Audio Ear Training for Music Producers and Sound Engineers
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