No, black holes do not absorb sound. Sound is a mechanical wave that requires a medium, such as air, water, or solids, to propagate. In the vacuum of space, where black holes are typically found, there is no medium for sound to travel through. Therefore, sound cannot propagate in space or be absorbed by a black hole.
Black holes are objects with an extremely strong gravitational pull, capable of trapping everything that comes within their event horizon, including light. Their gravitational pull is so intense that nothing, including sound waves, can escape from them once they cross the event horizon. However, this is different from absorbing sound.
It's important to note that black holes are not "holes" in the traditional sense, but rather regions of space where matter has collapsed to a point of infinite density, forming what is called a singularity. Their properties, including their gravitational effects, are primarily related to their mass, spin, and charge, rather than their interaction with sound.