macOS Change system sound effects in Sequoia?

[Jolanxbl]

My tech-inept friend finally upgraded from a 2015 Mackbook Pro with Mavericks to a 2024 M4 running Sequoia. She is very visual & auditory and we would like to know if the system sounds can be changed (listed below). Copilot says that Apple locked-down those sound effects & I would need to break into Apple's filesystem, and I can't find any mentions of replacing them online - people just seem to accept ALL changes to Apple technology. I am a Windows user and enjoy being able to edit everything short of the motherboard beep. Anyways, she is very much not liking the new sounds, even calling them 'horrible', and I agree at least for the volume one'.

How about a work-around then? If we set these sounds to off, could a custom program watch for these actions & keypresses, then trigger the custom sounds to play?

Sounds we'd like to change: System alert, trash actions, moving a file into a folder, volume control sample sound, any sound that can't be changed by default.

 

[casperes1996]

"Break in" to Apple's file system sounds so illegal... It's her computer and her files. That said, replacing that sort of thing will require disabling System Integrity Protection do it will lower the security a bit, as the OS volume will no longer be verified and sealed.

The only sound the system allows you to change out of the box is the "alert sound", which you can just change in System Settings -> Sound.

As for your workaround; Potentially feasible though I know no software that does this. The program would definitely need extra privileges, and even then there are some actions I'm not sure how feasible are for the program to detect, but it could work.