How to set HDMI audio volume?

Continuing the discussion from [How to set HDMI audio volume through alsamixer?](How to set HDMI audio volume through alsamixer?

Hi,@kayccc, I had a similar problem, can you give me some advice?And I created a new thread.
https://forums.developer.nvidia.com/t/jetson-xavier-nx-sound-card-tegrahdaxnx-volume-control/228737

Best wishes!

Please wait for our udpate at your new topic. Thanks

Thanks,kayccc

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