Filtering multi-dimensional data

[BenjaminNavarro]

I couldn't find a way by looking at the docs on how to filter multi-dimensional data. I have the impression that you have to create one filter per dimension, which can be very inconvenient.

I am missing something? If not, what would be the simplest way of adding the feature?

[dancazarin]

KFR is mainly intended for audio filtering where each channel is processed separately from other.
So yes, currently this is the only available way to do multi-channel filtering.