HDMI Arc and LG SmartTV problem

[Alban]

Hello, new owner of an LG 50qned86 TV, I can't get the sound on my speakers via the HDMI ARC of my WIIM AMP. Can you help me? Thank you. Alban

 

[Burnside]

Are you definitely using an hdmi arc port on your tv? Try setting the tv audio output to stereo PCM to see if that helps, and check if your tv has particular volume settings for its digital outputs

 

[Smartplug]

How can he get help if it’s something only few can understand?

 

[rockthehouse]

I have the same issue on the LG B4 OLED. No audio via HDMI arc.

 

[Alban]

I'm going to replace the HDMI cable, but I'm pessimistic.

 

[harkpabst]

I'm going to replace the HDMI cable, but I'm pessimistic.

Did you make sure to not enable eARC?

 

[Neil08]

@Alban, @rockthehouse

I have a LG CX5 OLED and ARC has been unreliable on every device I've tried to use it with.

Have you tried this? https://forum.wiimhome.com/threads/hdmi-arc-not-working-on-lg-oled-65b46la.4195/post-69556

It seems to work for me (with my Ultra) - thanks to @bherren

N.

 

[Alban]

Did you make sure to not enable eARC?

I think that the cable is good but you don't know if it is hidden or there is no incompatibility of material

 

[harkpabst]

I think that the cable is good but you don't know if it is hidden or there is no incompatibility of material

Well, yes, but did you disable eARC on the TV (and only enable ARC) as you should?

 

[Alban]

Yes

 

[Yoku-San]

Try the cable that comes with the Amp. Check your TV manual which HDMI input supports ARC. Disable eARC at the TV if possible. Switch digital output format to PCM. Enable HDMI-autosensing in the Amp for TV input.

 

[Alban]

What does ULTRA mean???

 

[DG77]

Try the cable that comes with the Amp. Check your TV manual which HDMI input supports ARC. Disable eARC at the TV if possible. Switch digital output format to PCM. Enable HDMI-autosensing in the Amp for TV input.

That is the correct way, since the Wiim Ultra/Amp only supports ARC (not eARC) you need to switch to ARC, and since the Wiim does not support all the different multichannel codecs you need to change mode to "PCM".
Then either restart the Wiim and/or the TV and they should handshake.

This works on my Wiim Ultra via HDMI connected to my LG 55" GX OLED (2023 model)

 

[hgo58]

Try the cable that comes with the Amp.

The HDMI cable is important. Old cables don't support the special ARC wires.

 

[harkpabst]

Qu’est-ce que veut dire ULTRA???

The WiiM Amp, WiiM Amp Pro and WiiM Ultra are different products but are equal in that they all support HDMI ARC (but not eARC).

The WiiM Amp Pro and WiiM Ultra do support the (relatively old) original Dolby Digital (AC-3) multi-channel format, but your WiiM Amp does not. It's therefore very important that you configure your TVs ARC output as PCM (Pulse Code Modulation), which is an uncompressed 2 channel format.

 

[DG77]

The HDMI cable is important. Old cables don't support the special ARC wires.

Yes should be 1.4 compliant at least:

• HDMI ARC, introduced with HDMI 1.4, streamlines AV connections by enabling two-way audio with a single cable.
• HDMI ARC functionality requires cables and devices compatible with HDMI 1.4 or higher; no special cables are needed.