Sending audio through HDMI?

Is it possible to send the output of the Organelle through HDMI?

I just got a USB keyboard / mouse setup to use with my Organelle, and would like to connect it to my TV, as I don’t have any other screen that features an HDMI input in my place.

Since I currently don’t have any speakers available, was thinking it would be great to just use the speakers in the TV, if the Organelle can effectively send audio through HDMI…

Is that possible?
If so, what do I need to do for that to work, cause so far, I haven’t been able to get any sound coming out of the TV…

Thanks in advance,
Best regards