https://www.epo.org/de/boards-of-appeal/decisions/t191206eu1
T 1206/19 (Spatial filterbank/OTICON) vom 08.08.2022
120619spatialfilterbankoticon
https://www.soundonsound.com/reviews/bereich03-audio-filterbank
Bereich03 Audio Filterbank
The humble band-pass filter forms the basis of this fun little 500-series module.
audiofilterbank