Anyway, here are my thoughts. 1) This is simply a low pass filter. It essentially computes the average values (plus a multiplicative constant). So this value w

Anyway, here are my thoughts. 1) This is simply a low pass filter. It essentially computes the average values (plus a multiplicative constant). So this value would be high for audio signal segments with lots of bass. 2) This is incorrect. The value in 1) is the amplitude of low frequency signals. Increasing the amplitude of this would probably result in emphasizing the bass. 3) Smaller rectangular functions are low pass filters with different cutoffs, so effect would be similar as 1). My guess is that the audio will end up having its bass region boosted, depending on the size of the rectangular windowing functions.