High pitch noise when motors are stalling

Hi, has anyone idea how to get rid off (or at least move out of hearing range) high pitch noise when X/Y motors are stalling under current? It doesn't happens everytime, seems it depends on where (microsteps) motor stopped. But the noise is moreles always (mostly only pitch is changed)
Change stealthchop_threshold from 0 to 1 make it from "normal" high pitch noise to "ultra" high pitch (and very very unpleasant) noise, so not really a solution 😦 .
(picture is current at motor stalling with stealthchop_threshold: 0)

Setup:
Vcore3 300
Board: BTT Octopus v1.1
X/Y drivers: TMC5160@24V (EZ5160)
motors: standard X/Y on Vcore3, LDO-42STH48-2504AC

steppers settings is taken from config/steppers/ldo/42sth48-2504ac/5160/24v-1.6a-(x|y).cfg
stall-microsteps2.gif
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