VST Connect Pro Audio Compression Codec?

My apologies if this has been dealt with in an earlier post - I have searched through the subjects and can’t find a specific answer.

Is Connect Pro using a specific compression codec for its streamed audio, or is it proprietary? Additionally, are there any restrictions on the streamed audio’s sample rate, or is it determined by the remote performer’s ASIO device?

Thanks in advance for any info on this - I’m writing a paper as part of my PhD and hope to add this!

Sample rates must match on both sides, Performer follows Studio which usually happens automatically.
For specifics about compression pls send me a PM.