I’m working with an autistic singer-songwriter who cannot keep a beat to save his life. I spent a lot of time trying to help him lock in with a clicktrack, but he just couldn’t do it. So I finally just let him play, and am trying to correct timing with Audiowarp. This works fine on his vocals, and fairly well on guitar, but when I do it on his piano tracks I get a ghostly moaning sound.
I can reduce the effect somewhat by cutting an EQ notch around 250-350 hz. Does anyone have any other suggestions?