I want to create a media audio streaming just like in this video, but instead of using an audio jack I want to use the HDMI port.
I’m using Ubuntu Focal 20.04 update 2021-11-22.
I just can’t get audio out via HDMI like in Radxa Zero documentation that said it would be “the easiest way”.
When I use the command
aplay -l I get:
aplay: device_list:276: no soundcards found…
I think due to the minimal packages of Ubuntu version available here, there are some important missing app to play sound via HDMI (so if it “the easiest way” I don’t wanna see the other ways).
I did a trial using TwisterOS Focal Beta4 and it works. I just don’t want to use this heavier OS for this quite simple application.
Does anyone know the missing packages for Ubuntu? Or is there a more complete version of Ubuntu available for Radxa Zero?