That's a weird thing to remove. Seems like a job for the mod community.
The Elder Scrolls
For everything Tamriel
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It was absolutely driving me insane because I relied on the sound as well in oldblivion until I stumbled on a YouTube video today. I can't believe I never knew this... I'm on mobile and watched it on my PC so I can't find it at the moment so I'll try to describe it.
Basically when you hit one tumbler there are the 3 drop speeds right? You push it up and it falls either slow, med, or quick. They "switch" between those three speeds when the tumbler falls back to the starting position. If you hit a tumbler up and HOLD up (I'm on controller), or whatever key is up, then the tumbler will bounce slightly in the fully raised position. When it's like this it will be remaining in the "fall speed" from when you first triggered it. We want it to be the slow fall speed so basically while it's bouncing if you see any spring between "bounces" it's too fast, let it fall to the starting position and try again. If it's bouncing and you can barely see any movement at all let alone any spring then it's in the slow position, that's what we want. When it's like that watch the lockpick and when the lockpick is moving upwards trigger the lock with whatever the confim button is for you. It should always work! I haven't broken a single pick since I learned this lol
Okay that works. Now to install about a dozen mods and play it for real.