  The vacuum expectation value of the non-minimally coupled Kalb-Ramond (KR)
field leads to spontaneous local Lorentz symmetry violation, and static
spherically symmetric solutions exist. In this study, we study the quasinormal
modes (QNMs) of modified black holes in non--minimally coupled KR gravity. We
employ a higher-order Pad\'e averaged WKB method to compute the QNMs for
scalar, electromagnetic, and gravitational perturbations. In order to account
for quantum corrections, we examine the geometric characteristics of the
horizon and QNMs by introducing the generalized uncertainty principle (GUP).
Additionally, we shed light on the impact of the Lorentz violating parameters
on our findings and estimate QNMs for different perturbations. Further, we
estimate bounds on the greybody factors for the modified and GUP-corrected
black holes. Our findings reveal the influence of the Lorentz violating
parameters in the model on the QNM frequencies and their reliance on the GUP
parameters.
