The City installed analogue recording equipment in the chambers in 2007.
According to the May 26 council agenda, there were "issues and limitations" with the form of recording.
"The audio recording did not capture all conversations in council chambers; the system only recorded the person speaking directly into the microphone and only one microphone could be turned on at once," the agenda read.
"Because of this, there was an inconsistency in the capture of resolutions and voting."
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READ NOWFor a new recording system to be installed, network connectivity, staff training and improved storage, City officers estimated it would cost $82,100, with annual costs expected to be $15,000.
The risks of recording meetings outlined in the agenda included councillors being personally responsible for comments made at council meetings that may result in reduced comment and debate.