AudioParameters in Host

Hi all,
what is the recommended way to add audio parameters in a host application? Like a gain value added to the output of a plugin or mute/solo toggles? I’d love to use the AudioParameterValueTreeState as it has all the convenient features with the component attachments but it requires an AudioProcessor to connect to. Is there some other way a similar connection to gui components can be achieved without having an audio processor?

Best, Rincewind