I want to know the answer to the following question:
What kind of resolution are the filter banks unable to provide an optimal solution for?
All the background I'm provided with is that "Additionally, the combining of the two filter banks' outputs creates aliasing problems that must be handled partially by the "aliasing compensation" stage; however, that creates excess energy to be coded in the frequency domain, thereby decreasing coding efficiency.[citation needed]". Is that enough to answer the question?
Answer: no