To some extent particularly screamy metal has so much noise it works pretty well too. On particularly bad days, Taake was probably the most effective - not on

To some extent particularly screamy metal has so much noise it works pretty well too. On particularly bad days, Taake was probably the most effective - not only lyrics in an unknown language but a sound level that felt more like ocean waves, completely washing out the surrounding sound landscape. (of course it helps if one likes this kind of thing, which I do)