There are not many, but a few courses I have played are so removed and isolated, all I could hear was the sound of blood rushing thru my capillaries, arteries and veins near my ears! That to me is the definition of silence and the most fascinating sound (or lack thereof) I have ever "heard" on a course.
Courses where I have recently experienced this include:
White Oak Conservation-Dye Course (FL)-2023
Reserve at Moonlight Basin (MT)-2023
Dunas Comportas-Portugal-2023
Lofoten Links-Norway-2023
Santapazienza-Brazil-2023
Landmand-NE-2022
Giant Ridge Resort-Quarry-MN-2022
Stock Farm-MT-2022
Silvies Ranch Resort-both courses-OR-2021
Sand Hills-NE-every time there
There are others as well, that i cannot recall right now. And at some courses there is no silence because of the loud noises created by the disrespectful waters of nearby oceans!!