http://bit.ly/3UiI6HL
https://www.orei.com/products/dual-hdmi-earc-audio-extractor-4k-60hz-with-optical-port-3-5mm-jack-18gbps-bandwidth-hda-935?_pos=1&_sid=ca48708fb&_ss=r

Key Features:
Supports Video and audio separation
Auto eARC Detection when using the TV's app or external devices
Supports dual HDMI audio interface (HDMI eARC and HDMI Audio)
Supports 4K@60 & HDR
Compatible with Dolby Atmos (via HDMI)
Supports Pixel clock rate up to 600 MHz
Supports S/PDIF, Stereo 3.5mm audio output
Supports DTS HD, Dolby TrueHD (via HDMI)
Supports HDMI 2.0 / 2.1(eARC)
HDCP 2.3 compliant
Three modes selection for audio format setting (2Ch/ 5.1Ch/ 7.1Ch)
Support CEC (Use the TV RC to adjust the Soundbar sound and CEC connecting the device to power ON/OFF)
This audio extractor has three HDMI outputs, one for TV 4K@60Hz/HDR video and audio signals, one for eARC Soundbar, and one for Amplifier HDMI audio. It also has S/PDIF(Optical) and analog 3.5mm stereo interface outputs.

The TV signal can be transmitted back to Soundbar via eARC (enhanced Audio Return Channel) to play high-quality surround sound. Even Non-eARC TV can enjoy the high-quality of eARC audio return for lossless audio up to Atmos.

Build-in eARC automatically detects the source of the signal (TV or external signal).