We had the discussion about cheap China boxes a couple of times. Specs sound good, but they usually have a locked bootloader. A locked bootloader is a problem, because the OS can (if even possible) only run from an external device (USB stick). It's no easy installation by the way.
Tell us what you wish to play on LE, so we can avoid that you double-dip boxes (not cheap anymore).
Broken, or it needs a firmware update is my guess.
Good luck! 
Seems like the driver does the opposite of the expected behavior. Better ask at the HiFiBerry forum. 
How can i check if the cable is 2.0 or 2.1?
I checked my amazon order, sadly it doesn't say what HDMI it is, but it says it can do 4k @ 60.
Then it's the right cable.
If your AVR has HDMI, you could also try RPi -> AVR -> TV (two HDMI cables).
I was helping another user some time ago, and it seems like he just needed the HiFiBerry overlay line at config.txt: Click!
RPi3B+ is even cheaper, and can play 1080p. Installation is pretty easy on microSD.
Expansive box: no problems
Cheap box: problems (but support is right here )
You could use JSON-RPC to send cleaning commands to all your boxes. Don't ask me for details, I don't use that.
So you say there should be a Setting? I will take a look. Thanks!
I don't know. On my TV there is no setting for this. I get optical audio from TV AND RPi.
- don't use RPi HDMI-1 at the moment, because there is a chance that it's not supported yet
- go RPi (HDMI-0) -- HDMI cable --> TV -- optical cable --> AVR
- check your HDMI cable, it has to be HDMI 2.0 or 2.1 standard, because you are using a 4K TV
If you use a cable lower than HDMI 2.0, chances are that you lose data (audio data).
My theory is that audio isn't blocked, it just doesn't arrives on your TV due to a bad HDMI cable.
The outputs says you have a DSP. The DSP is an expansion module: Click!
If you have this module mounted, remove it and try again.
Please post the output of the amixer command.
Normally the HiFiBerry overlay activates I2S, but it doesn't hurt to activate it explicitly at config.txt (remove the leading #).
I'm not dealing with HD audio or Atmos, so it works for me.
I go optical from TV to AVR, and never had problems with HDCP. Maybe you have to setup your TV for this.
Audio over HDMI-1 is possible in theory, but a pretty new feature on LE. Better wait a couple of days until LE 10 arrives, then try again.
I assume I've been read the HiFiBerry doc about LE. I'm wondering why there is no HiFiBerry analog device available.
Notice step 20 of the doc (amixer -c 0 set Digital 80%). Maybe it's just a volume issue.
Can you check your EFI settings? Maybe your HDMI ports are set to DVI mode, which has no sound. Use HDMI mode instead.
I think it's better not to buy a box with a locked bootloader ( PANiCnz is right). Go for another Intel box (Tiger Lake NUC) or an RPi.
It was a limited offer for a pre-production sample of the ESP32-C3. It's not available anymore. A regular ESP32 is cheap (eBay: ~5€ from Chinese traders). The benefit of a regular ESP32 is that you can program it by the Arduino IDE.
The HiFiBerry is analog.
OK. Seems like there is no I2S master clock provided by RPi, resulting in no driver available.
Maybe this thread can help you to generate a master clock signal: Click!
The typical solution is to get a HiFiBerry HAT. Is there any reason to invest that much time for a custom SPDIF?
