Honored Contributor
Honored ContributorI am convinced about the location of lines because when I change the input frequency from 0 to 4kHz, one line go from the left edge to the middle while the second go from the right to the middle.
However, for many frequencies, there are these two extra lines on the right half-something like |---------------------------------|---|-------| 0 What might be the cause for these two extra lines? Referring to the earlier three screen shots, I have 3 more concerns: 1) the fact that for many of them, i.e. at different frequencies, the line spreads out very much at the bottom (see picture for 1260Hz). 2) sometimes, the line still fluctuates up and down a little-sometimes slowly and sometimes very fast. 3) sometimes there are two or more lines instead of one that are in adjacent bins and may be with a gap in the middle (see picture for 944Hz)
