Close, but no cigar just yet. – LED Audio Spectrum Visualizer Review

Things I don't like: 1) There is a big white dot in the upper left corner - please get rid of it. 2) When I hear nothing, DISPLAY nothing. I understand that a "quiet" room easily has 40db or more of ambient sound going on, but the app needs to have a way to lower mic sensitivity a LOT more, or better, provide a means to "calibrate" what "zero" is. Things I do like: 1) The simplicity. I see that several reviewers want more features, and that's fine. But I prefer it simple, yet outstandingly implemented. A bug in the display, and dancing bars to sound that is imperceptible is less than outstanding. (Five stars if the two problems I have stated were resolved.)
Review by Clanrostheny on LED Audio Spectrum Visualizer.