Help with audio?

I am using Haiku beta test image, everything works except audio. I use hda driver, my hardware is all intel. I tried finding a solution, some said installing a driver called Open Sound System. How do i install it? There is nothing called Open Sound System in haiku depot?

EDIT: I think i found why, my Haiku is 64-bit, and in the Haiku Depot website, OSS doesn`t show up in 64-bit, it shows up only in 32-bit. Sooo, how can i build it then? Please explain every step if you can, i would like to learn about building on Haiku

There is no OSS driver for x86_64. Check this PR and try to build it with haikuporter:

For more info check the haikuports wiki.