OverMan's Quiet place - Dangerous Silences
This mod requires the GeckoLib library to function! Without it, the mod won't start.
The Minecraft world has become much more dangerous with the arrival of "Death Angels" - blind alien creatures capable of killing all living things in a fraction of a second. The only thing preventing them from finding you is absolute silence.
Any sound you make could be your last. No weapon can stop these monsters, no wall will provide reliable protection. But you have one advantage: Death Angels are vulnerable to high-frequency sounds. Use this to repel them and stay alive.
Wool blocks also hide most sounds from the monsters - thanks to this, you can carefully build on wool surfaces without attracting their attention.
Mod review videos:

The mod is compatible with other modifications that allow voice communication in the game - if you want monsters to react to your real voice as well.