Hi,
I recently purchased the UGOOS AM6B Plus to replace my Shield. The device is almost perfect, but I’ve encountered an audio issue that’s very frustrating in daily use.
Configuration:
- LG C2 TV
- HW-Q990B soundbar
- Club3D HDMI cables (Ultra Certified)
- A11 CPM build (I’ve tried the latest stable and nightly versions as well)
- Setup: UGOOS → (Input1) HW-Q990B → LG (eARC)
- Audio is set to passthrough on all devices
The issue: Audio doesn’t play (or sometimes plays with lip sync issues) when I switch the soundbar’s HDMI input from the UGOOS to an eARC source, such as the TV’s YouTube app or a PS5 connected to the TV, and then switch back to the UGOOS. This is reproducible 10/10 times with multiple DV 8.1/EAC3 content and occasionally with SDR content as well. However, it doesn’t occur with other formats, like DV P7. In such cases, the audio starts flawlessly without any issues.
Workaround: The issue resolves if I switch to a TV HDMI input with no audio output (where the soundbar doesn’t display “eARC”) and then back to the UGOOS.
No issue with this setup: UGOOS → (Input1) LG TV → HW-Q990B (eARC)
However, this configuration doesn’t support DTS, which I need.
Based on this, it might seem like a soundbar issue, but the problem doesn’t occur with the Shield or Apple TV 4k using the exact same setup—only with the UGOOS.
Any help or suggestions would be greatly appreciated!