On future iteration of Vero, consider adding a second HDMI port to be used for audio only. The idea is to have one port connected to display and the audio only port connected to AVR. This feature is commonly found on premium Blu-ray player.
Audio only HDMI port is ideal if you upgraded your TV but want to reuse existing AVR, or you want to bypass video upscaling coming from the AVR.
While Vero 4K does have optical out, you are limited to lossy multichannel audio.