8. The method of claim 1 , wherein projecting each frequency value comprises projecting each frequency value, including each of the adjusted frequency values, into the reference space to generate the set of projection values in the reference space.
8. The method of claim 1 , wherein projecting each frequency value comprises projecting each frequency value, including each of the adjusted frequency values, into the reference space to generate the set of projection values in the reference space. 9. The method of claim 8 , wherein the second column remains unchanged.