QMUL enabled transcription feature in Teams on 13/01/22. When you start recording a meeting, you also turn on transcription. This behaviour is ‘by design’ by Microsoft and can’t be amended in the organisation wide settings. Please see https://support.microsoft.com/en-us/office/record-a-meeting-in-teams-34dfbe7f-b07d-4a27-b4c6-de62f1348c24#bkmk_recordmeetingorcall
If you want to stop the transcription, but keep recording, you must click ‘Stop transcription’. Please see https://support.microsoft.com/en-us/office/record-a-meeting-in-teams-34dfbe7f-b07d-4a27-b4c6-de62f1348c24#bkmk_stop_recording
Full
article (Record a meeting in Teams):
https://support.microsoft.com/en-us/office/record-a-meeting-in-teams-34dfbe7f-b07d-4a27-b4c6-de62f1348c24
