Mini HDMI to Optical Audio Extractor, 4K @30Hz HDMI to HDMI SPDIF Splitter HDMI Toslink Converter with 3.5mm Stereo Sound out Support TV PS4 Slim Xbox Chromecast and Blu-ray DVD Player Audio/Video
How to use Chromecast to stream music to dumb speakers (as Chromecast Audio does)? - All About Chromecast
How to turn a Chromecast into a Chromecast Audio for under $6 - YouTube
How to connect Chromecast to TV without a USB or HDMI - Quora
my diy audio Chromecast - pass thru enabled splitter - finally NO MORE BLUETOOTH : r/Chromecast
Microware 1080P HDMI Audio Extractor, HDMI To HDMI Audio Optical and RCA(L/R) Stereo Analog Outputs Video Audio Splitter Converter for Ruku, Chromecast, Blu-ray Player, Cable Box, Fire TV, : Amazon.in: Electronics
16-6713 HDMI Audio Extractor - HDMI to HDMI + Optical + RCA L/R Stereo – AA Electronics