Refer to the link below that sets out the law. If someone, anyone, wishes to record a strata meeting, they must obtain the consent of all the participants. If anyone objects (as you note), they cannot record it. If they continue they are breaking the law, and the Chair should ask them to leave.
https://muellers.com.au///2017/wp-content/uploads/2016/04/Recording-Strata-Meetings.pdf