As LRADs are less ethical than CS gas, the true design intent is likely to produce something that looks insignificant on video recordings so it can be used as extrajudicial punishment of undesirables with less risk of public outcry.
this. and let's not forget that these....officers always receive the best, most top notch training to use these things safely. (/s)
yet another reason to ensure footage looks like 'nothing terrible happened to these people' as expertly trained cop uses a weapon of war against civilians.