28 May 2020 14:03
I understand your frustration, I think you missed some important information about the current state of the vampire.
First, you mentioned " still I don't have voice in system" Im assuming you're trying to get sound out of DIGITAL-VIDEO? unfortunately, this option is still not available for the current core, it will be only available with the gold 3.0 release. currently, you can only have video from hdmi but not sound. you need an additional monitor to be able to play games and run sound from it. or you can can connect speakers directly to your amiga to get sound
Im currently running an amiga 500+ with ram upgrade and im using two-monitor setup, my lcd is used for desktop and crt is used for gaming and mainly to get sound out of the system.
There is an alpha gold 3.0 available, which you can try, i haven't tested it myself and not sure how stable it is, but I believe you will be able to get sound through DIGITAL-VIDEO
If you are willing to sell your vampire, that's not a bad idea, you will probably get more than what you paid, and a new user could potentially contribute to the amiga vampire community, that won't hurt the team at all.
The accelerator is still under development, and not all of the functions are available, it not a plug and play device and needs basic amiga knowledge and further understanding of the product's nature.
I would suggest to check the gold 3.0 core
Press the red button in the bottom right corner.