Help Removing light ding when using back/home/recent buttons?

[phillychower]

I like the haptic feedback, but the very light ding when clicking home/back/recent or entering my screen lock pin is a distraction for others during meetings. I've looked everywhere for this setting, anyone know how to disable it without disabling haptic?

It seems to stop if I turn off haptic under sound, vibrate feedback, but then there's no vibration feedback. Shame if you can't have one without the other?