File talk:Roll-off graph multiple.svg

The way these are drawn, all three curves have different cutoff frequencies (-3dB points). If the orange and green curves were moved to the right, such that they both intersected at the -3dB point of the red line, which occurs at 1Hz, then this would be a more useful comparison. Btw... it's pretty unusual to have a LPF with a cutoff of 1Hz... not a whole lot of things happening way down there, but whatever. (The most commonly used cutoff frequency for this sort of generic, demonstrative graph is 1kHz.) Dlampton (talk) 16:41, 2 November 2016 (UTC)[reply]

Actually, scaling to a 1 Hz prototype filter is a pretty standard way of presenting filter curves. 1 kHz would be meaningful for an audio application, but not very helpful for an RF applications, or an ADSL modem connected to a telephone line come to that. I don't see how aligning the 3 dB points is helpful for the article (roll-off) that this diagram is used in. Doing so will result in the curves crossing, introducing unnecessary clutter and the essential information it is imparting just that bit more difficult to discern. If you have another place you want to use this, I will happily make you a new diagram. SpinningSpark 18:13, 2 November 2016 (UTC)[reply]