Use formant shifting on delay returns for unique vocal textures
Problem: incidental delay lacks character
Use volume shaper to restore high-end clarity after formant shifting
Problem: muddy vocal after formant shifting
Combine formant shifting with slicing in a sampler for vocal hooks
Problem: stale vocal hooks, lack of timbral variation
Automate formant shift to create evolving vocal timbre
Problem: static vocal timbre, lack of dynamic evolution