The iArkPower HDMI audio extractor has one HDMI input, one HDMI output, one Optical SPDIF output and RCA L/R stereo audio output.

It is designed to extract the digital audio embedded in HDMI source and output it via optical SPDIF (up to 5.1 Dolby Digital or DTS) or 2CH RCA L/R stereo audio out. You will be able to send the audio signal to an amplifier, AV receiver, soundbar or other sound systems.

It's a perfect solution for amplifiers or receivers that do not have HDMI inputs, and suitable for various HDMI source devices that do not have dedicated audio output, such as Roku, Chromecast, Blu-ray/ DVD/ HD player, cable/satellite box, Amazon Fire TV, Apple TV, PS3/4, Xbox, HD camera, HD DVR, etc.

It features three audio EDID settings for the best flexibility:
2CH Mode: Source device will send 2CH PCM stereo audio in HDMI which can be converted to 2CH analog stereo and output via RCA L/R (SPDIF and HDMI also have stereo audio output at the same time).

5.1CH Mode: Source device sends Dolby Digital / DTS which can be extracted via SPDIF out; the RCA L/R output will not have sound. SPDIF does NOT support 5.1 Dolby Digital Plus. Please turn off Dolby Digital Plus for Amazon Fire TV, Roku and Chromecast.

PASS: SPDIF and RCA will not have sound. Source device sends the highest audio format that receiver can handle. Supports pass-through of all current digital audio formats including Dolby Digital Plus, 5.1CH/7.1CH PCM and HD Audio (including Dolby TrueHD and DTS-HD Master Audio).