The sounds you’re still hearing probably aren’t the Completion Sound (or anything else built into Cursor). They’re VS Code’s built-in accessibility signal sounds, which play on events like terminal commands finishing, progress updates, and file edits. They’re set to “auto” by default, meaning they switch on automatically whenever macOS tells Cursor that an accessibility tool is connected. Apps like HomeRow, Wispr Flow, window managers, and similar utilities trigger this, which is why the sounds seem to come out of nowhere.
Try this:
Open Cursor and make sure you’re in the IDE (not the Agents window).
Press Cmd/Ctrl+Shift+P to open the command palette, then run “Preferences: Open User Settings (JSON)”.
Inside the outer { }, add these two lines (add a comma after the previous line if needed):