Hey all;

I have been practicing and getting my vocal range back, and trying to learn some effects and techniques that always eluded me. Got fry scream at different ranges, even some Mongolian throat singing, but here's one I haven't managed:

How do you add a little distortion to higher pitch notes? Specifically distortion on pitch. It sounds a lot to me like the "static" from a fry sream, but fry scream is usually a fully closed vocal folds. I'm talking about sinus shaking, static-y, on pitch.

False chords have a distinctive low pitch, and use a lot of air (Christian Bale's Batman). Not this one.
Not overtone singing either (Tibetan/Mongolian throat singing, pure larynx).
And then there is pure fry scream, where the tones are incidental overtones (Jinjer, Periphery). Not this one either.
And then lower register fry (drop off). Rammstein does this one. but I don't mean this one.

The technique is really used well by:
Maynard James Keynan https://youtu.be/vtJ2f8_lfn4?t=470
Chester Bennington
David Townsend https://youtu.be/nubJjB95VdY?t=80
And yes, Spencer Sotelo uses on pitch distortion as well. Here he goes from natural, to distortion-on high pitch, and when he trails off he loses the distortion. Then switches to full fry scream at 4:50. https://youtu.be/0sNIbcqxYL0?t=250

And done right, its quiet, with the microphone close to the singers mouth, and uses little air. I can do this below my break-point, but all of the above listed can carry it well above their break-point. As far as I know, its a different technique than low pitch or flat out overtone fry screaming. But in searching the internet, experimenting, and reading, I have never found it well explained with examples of the tonal version, except in low notes (fry register drop off).

Is anybody out there well-versed in this, and knows how to use upper-range distortion in a sustainable way?