Man, you've got a unfortunate SoC, that is Bay Trail. I'll just quote the relevant part of another answer of mine on the like matter:
There's a bigger problem: you've got a System-On-Chip called Bay Trail, and Intel is struggling yet to supply good support (which is funny, given the number of engineers, and that Bay Trail is in production). Most of the issues are fixed as of kernel 4.7, except that there's no sound.
You can track the process of solving the bug with sound here. I'd recommend to hold with installation, while it gets solved (or, just in case you're a programmer, you could try to join the fun of getting the sound up and running).