I have a Sony XBR-55X700D, and am trying to connect to Yamaha HTR-5640 for surround sound. I attempted using Musou 1080P HDMI Audio Extractor HDMI to HDMI + Optical Toslink(SPDIF) + RCA(L/R) Stereo Analog Outputs Video Audio Splitter Converter, using an HDMI cable from the HDMI 3/ARC port, to converter, to Roku and receiver, but am not getting sound to rear speakers. TV setting is on speakers/tv, clear audio - off, sound mode - standard, and surround - auto. Any help appreciated