*Also uncontrolled and unregulated copies of recordings can be open to data manipulation, whether its a recording or transcribed. Its not as simple as ' if you are behaving as you should then you shouldn't be afraid of being recorded' it's much more complex than that. Any agreed recordings of meetings would need to be handled in the same vein as Police interviews to protect all parties involved.
What I think you are describing is a 'whistle blowing scenario' in which a court would need to determine whether a crime (such as physical abuse) were occurring, which could therefore be argued as mitigation against data protection. *
No, I'm talking about the fact that any individual can record their appointments/meetings for personal reasons. Recording an appt or a meeting about yourself, your children etc would fall under this category and therefore gdpr/data protection does not apply, they don't have to gain consent from other parties or worry about how it's stored etc. I frequently do this as some meetings I attend are long, a lot gets discussed and there are rarely accurate minutes/records. It helps to go back to it later on if I need to go over exactly what was said/agreed.
When recording, an individual can ask for consent from other parties but they don't have too. If the recording is for personal use and therefore no consent from the other parties was required, the recording itself cannot be shared, so there would be zero point in manipulating the data from it. I'm not sure if a transcription can be shared, I can't see how it would be any different from sharing minutes from a meeting personally (which can also be, and are sometimes manipulated by some services...) but couldn't fully say either way if you can share a transcript freely.
In some circumstances covert recordings may potentially be used as evidence in court/Tribunal proceedings. I was advised that as the recording can't be shared, you can submit a transcription (which naturally would be expected in full in a court and there would be zero point in trying to manipulate it) and the courts can then order the recording to be shared and submitted if they deem it necessary. The case law is a bit all over the place with this, but there have been cases where covert recordings have been admitted. Obviously that's quite serious territory and as you say, currently irrelevant.