I'm going to highly recommend this audiobook. I read the 1970 book about 30 years ago, but now I find the audiobook to be a delight to listen to.
This is the most famous and most award-winning of about 40 books that take place in the "Known Space" Universe created by Larry Niven. https://en.wikipedia.org/wiki/Known_Space
Other recordings of this book have been removed from youtube, most likely for copyright reasons. This particular recording seems odd and not particularly the best quality, as if it was copied from audiotapes and maybe from more than one source. The quality is not consistent. You can barely hear some background interference like it is being copied from tapes.
However, I wasn't bothered by the inconsistency of the recording. The story is so good that I really enjoyed listening to it.
There are four recent prequels to this novel in the "Fleet of Worlds" series, which are not a prerequisite, but a delight to listen to. I paid Audible to listen to those.