KanexPro 4K HDMI Audio De-Embedder HAECOAX3 B&H Photo Video
SpeaKa Professional Audio/phono Extractor [HDMI - HDMI, Jack, RCA] 1920 x 1080 Pixel | Conrad.com
The Best HDMI Audio Converters - IGN
KanexPro Audio De-Embedder with HDMI Video Output HAECOAX B&H
4K HDMI Audio Embedder and Extractor - PureLink AV
Amazon.com: HDMI Audio Extractor 4K, Hdiwousp HDMI to HDMI Audio Optical Stereo 3.5mm Jack, HDMI Audio Converter with HDMI Cable to Toslink SPDIF AUX Output Support HDCP1.4 3D for PS4/Roku/Bul-Ray : Electronics
Amazon.com: HDMI Audio Embedder Inserter Digital Analog Audio + DVI to HDMI Support TOSLINK Optical 3.5mm Jack AUX Audio Input 4K60Hz 18Gbps HDR CEC HDCP2.2 : Electronics
4K HDMI Audio Extractor, HDMI to HDMI with Audio and Optical Toslink SPDIF + 3.5mm Stereo Audio Out, HDMI Audio Extractor Splitter Converter Adapter, Support 4K@60Hz 1080P Full HD 3D for PS4
What Is an HDMI Audio Extractor? - The Home Theater DIY