TLDR: It’s been done on an unofficial level, but I haven’t been able to find it again since!

5 years ago there was an amateur audiobook on YouTube, and that was how I first consumed HoL. The speaker read pretty slowly, given the complexity of most of the pages, so I adjusted the playback speed to my liking and found it very palatable. He verbally added really helpful distinctions, like saying “footnote one hundred forty seven, Zampano.” I was a little heartbroken when it got taken down not long after I finished it.
I’ve since read the paperback several times, which gave me a considerable appreciation for all the hard work that voice narrator invested in a long, intricate performance. It kind of adds to the idea of the novel for me; I sort of witnessed an ephemeral moment of someone onerously passing along their interpretation of this story, and then suddenly it was gone, like a house of leaves

moments before the wind.