[REQ] Start/stop frequency range

[nahkampf]

First: thank you for an awesome piece of software! I would find a definable low/high cutoff range very useful! I'm generating spectrograms for stuff that has basically all it's data in the sub-5000Hz range and always having the full range limits speks usefulness to me as detail gets muddied on this scale. ffmpeg supports this in showspectrumpic for instance (start and stop values).

[eeik]

+1 for this request

Instead of manually defined low/high cutoff ranges through settings or some sort of input field, I was imagining the ability to dynamically zoom in/out on the vertical axis to focus in on a certain sub range of the frequency range. Much like TradingView allows double click to snap the vertical access to the "automatic" full price range of the given time period, when zooming in/out ( [CTRL] + mouse scroll wheel ) the focus of the price chart can be modulated to only show a narrower vertical range. See attached example.