How do you know if your mic is tdm rtas or vst?
Microphones are not TDM, RTAS or VST. Those are categories
applied to different types of plugins.
Mics can be condenser (aka capacitor), electret, dynamic,
ribbon, etc. Some require 48 volts phantom power to power them
(condenser mics).
Plugins used for your audio software can be categorized by being
TDM, RTAS, VST or DirectX. TDM and RTAS plugins are usually used
for Pro Tools. VST are used by Steinberg Cubase. Some other
applications can use VSTs and maybe some can use TDM and RTAS.
There is another kind too: DirectX plugins.