Free Dub Filter Audio Effect For iOS The Dub Filter is a dual low-pass/high-pass 24/48 dB filter, with resonance and the... Read more In Effects, Free Apps amazing noises / audio effects / dub effect / dub filter / dubfilter / free app / Free Dub Audio Effect For iPad / Free Dub Filter Audio Effect For iOS / ipad app / ipad audio effects / iphone app / iphone audio effects 0 likes1 views1 min