Review on Neoteck 4K 60Hz HDMI 2.0 Audio Extractor: YUV 4:4:4, HDR, HDMI to HDMI + Optical 🔌 Toslink SPDIF + Analog RCA L/R + 3.5mm - Perfect for Gaming, PS4 Pro, Blu-ray Player, HDTV by German Diaz

This is a 5 star choice for transmitting composite audio output from an HDMI source (BluRay or Satellite DVR/Roku Streamer) when transmitting an HDMI signal to an AVR/ 4K TV. However, be careful. that many 4K sources only transmit DTS MAster Audio or digital audio stream instead of PCM. The bitstream audio signal sends a standard Dolby Digital or DTS 5.1 surround sound signal (or higher, e.g. DTS Master Audio) to your receiver for further decoding, the PCM option only sends a two-channel signal. to select the PCM audio output option in the HDMI source (Roku/BluRay player) to get a signal that this audio extractor can handle. Otherwise, you will only hear digital noise (hiss) through the analog audio RCA connectors. That means you're downsampling the source audio to Dolby Pro-Logic versus Dolby Digital+ (anything above 5.1 surround sound) to split over the analog audio jacks.