Clarifications on Frequency Transformation

[mandiehyewon]

How is the "small budget E (of 1)" (in page 6 of paper) applied in remove_frequency function? It is a bit hard to know from the code how E is used.

Is hyper parameter alpha (for amplitude modification explained in page 6 of paper $\alpha* A_m$) here in add_frequency 0.1 and should be modified to 0.5 following "Implementation" section of paper (page 8)?