Hello dear,
As far as the sofware development is concerned, nothing is impossible to integrate into it. So if any institution wants to incorporate such provisions where they would be able to record voice in the background, and it's pretty obvious that they can do it at theirdiscretion.
But again if any institution does it, then obviously there would be a mentioning of that particular provision and the software and it will need permission for accessing the voice(or mic).
Hope this information helped you.
Regards,
Suvam Nandi
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