Quote:
Originally Posted by
jmcecil
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It's too many people with too much pedantism.
state variable = alll that support some combination of BP, HP, LP, Notch etc.. Hell I have a couple HP/LP filters that technical are "state variable" filters.
Continuously state variable= those that have a knob that morphs/transitions between the states, instead of a switch that flips between them.
Even that's probably not pedantically, scientifically balls on dead accurate. But don't get too worried about it.
It sounds like you're mixing up Multi-Mode (LP *and* HP/BP/etc) and State Variable (a subset of Multi-Mode that not only has multiple modes but you can sweep between them). While I guess one could argue that a Multi-Mode one is literally State Variable, too, that's definitely not the common usage as I understand it.
There are lots of Single Mode filters, some Multi-Mode filters, and a few State Variable Multi-Mode filters, and even more rare is something like the Belgrad which is a Dual Peak, State Variable, Multi-Mode filter. Right?
When someone says or writes an SVF there is an implied [Multi-Mode] between the V and the F... a State Variable [Multi-Mode] Filter...