alinka – strictly speaking the Secretary doesn’t have to minute the discussions around each Motion on the Agenda for the Meeting, only the outcome of the vote, which is why you should have at least submitted your concerns in advance of the Meeting as a Motion, or at least called for a “poll vote” on the day, where the Minutes would record the unit entitlements of those voting in favour and of those against, thereby indicating the extent of any dissent.
In the absence of a Motion for the Owners Corporation to permit the use of recording devices at a particular Meeting, it’s a matter for the Executive Committee (E/C) to decide upon. However, if such a request was spontaneously made (i.e. at a Meeting), then as the Chair can only rule upon procedural matters, their only options would be to defer a decision and to refer the matter to the next E/C Meeting, or if that displeases the the person making the request, to adjourn the Meeting altogether until such time as the E/C meets and makes a decision.
So your best option would be to put a Motion about the use of recording devices on the Agenda for the next E/C or General Meeting – depending upon whichever of those forums you believe will make the decision that you want.