Adding a HDMI audio output

Single Board Computers Odroid N2/N2Plus/C4
1

Hi!

Is there a way to add a HDMI audio output? I was thinking to use a USB3 graphics card, just for the audio.
Is it possible ? What card do you suggest?

Thanks,

Frédéric

2

You want to use USB3 grafic card for Audio ?
Pls explain what You want to to.

If You want Audio from HDMI You can use a HDMI Audio splitter/extractor

3

I want to sent HD audio to my HC amplifier from a different HDMI than the default one (used for the video).

To be more explicit: first, Dolby/DTS streams are decoded by Kodi, so I have full control of the volume from Kodi. Second, I split the HDMI signal to send it on my video projector and on a simple monitor (used when I only watch news, or listen to music). But the audio does not work when using the splitter, so I would like to use a dedicated HDMI output to send the multi-channels PCM output to the HC amplifier.

4

It doesn’t work because your splitter is the limiting factor. You can get one that supports LPCM, and you’ll be fine.
But really, you should just bitstream DD/DTS to your AVR, then you probably won’t have to change the splitter.

5

Even with bitstream DD/DTS, it does not work.

Do you have a splitter to recommend? A 1x2 or maybe a 1x3, so I can use a dedicated output for each stuff…

6

Sorry, I can’t recommend any splitters, but I know that good ones exist. But good ones are probably not very cheap.

7

BTW, I tried to hookup the S/PDIF output (from J7 connector) of the N2 to my AV receiver, but it does not work. I activated the output in the System/Video menu, but my AV receiver does not see any signal.
Do I need to activate something else? Or have I fried the output? I never fried a GPIO on my Odroid/RPi boards, but maybe S/PDIF is more easy to damage?

Thanks for your help.

8

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