Persistent source tracking?

[atyshka]

I'm trying to use a Respeaker with ODAS to record a two-person conversation, with the mic directly between the two people. My challenge is that using the default tracking setup, if one person is quiet for more than a few seconds, the Kalman filter stops tracking them. I'd like two separate output channels for each side, which requires persistence in the tracking. Static sources don't seem to be what I want though, there should be some level of tracking because the location of the speakers is not completely fixed, even if they are on opposite sides of the mic. Are there parameters I could adjust to achieve this?