I guess/agree that you are aware what you need. Did you read
https://github.com/x42/fil4.lv2 ? "[snip] phase-shifts [snip]
comb-filter effect [snip]" I smiled when I read this, since it is
tautological. OTOH I suspect Franz Kafka explicitly would have
distinguished it in a similar style, for good reasons.
The ear is as much a tactile organ as fingertips are, just
the interpretation of the tactile interpretation by the ear is tricky.
However, especially when it's about measurements, I would be careful
with EQing.