Spectrogram log zero Issue #821, 820 & 818
Created by: areeda
Note this PR includes changes in PRs 817 & 819 It addresses signals with data but have long periods of zeroes so that one of the columns in the spectrogram is all zeroes
Created by: areeda
Note this PR includes changes in PRs 817 & 819 It addresses signals with data but have long periods of zeroes so that one of the columns in the spectrogram is all zeroes