Amazon.com: RuiPuo HDMI to AV Converter HDMI to Video Audio Adapter Supports PAL/NTSC Compatible for Roku Streaming Stick, Fire Stick, Apple TV, DVD, Blu-ray Player, HD Box ect (HDMI to RCA Converter) :
Konverter HDMI ein VGA+ 2CH Audio Signal - Schwarz
Does HDMI Carry Audio Signals? – My New Microphone
KanexPro Audio De-Embedder with HDMI Video Output HAECOAX B&H
Embedding audio onto a HDMI signal - YouTube
Neoteck 4K x 2K HDMI to HDMI + Audio(SPDIF + R/L+3.5mm)output Multi-Functional HD Audio Extractor Converter The Synchronization of Audio Signal Separation - Walmart.com
HDMI vs. Optical: Which Digital Audio Connection to Use? - CNET