[Freeswitch-users] mod_conference stereo? record stereo wav?

Question, we are successfully connecting chrome/firefox with opus48, 2 channel stereo to mod_conference user master build. Recording the conference seems to only record 1 channel Couple questions, did not see any documentation on stereo in wiki. 1) Do we need to add a param to conference.conf.xml profile to have the conference mix stereo? 2) What is the proper way to record the conference in stereo wav file? Thanks in advance. Regards, Stephen