Join Date: Jun 2001
Location: New York, New York, USA
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Just hitting this same issue with TW-NYC Cisco 8742HDC,
I'm NOT feeding that HDMI directly into a big-screen TV, I'm feeding it into an HDMI input on a Yamaha RV-V773WA. It has 6 HDMI in/2out and I bought it in large part to avoid this BS. It can't do anything with the Audio from the Cisco except treat it like an extremely old, extremely low res signal. It can't even use it's decoders on it as it would if it were an analogue stereo signal. The only thing that works is feeding the CISCO SPIDF to digital Audio input on the Yamaha, and they didn't think to link a bunch of those to their HDMI's--assuming that wouldn't be necessary.. EVERY other device I have with an HDMI---ROKU, Western Digital TV Live, Buffalo Media Streamer, hll even my old SONY 400 DVD changer with an HDMI---they all work just fine, (except if I'm streaming McEnroe/Borg's 1980 Wimbledon Final. That old video looks just like a 2013 Cisco HDMI audio signal.
HDMI protocol mandate certain standards which I think this Cisco fall well short of. The audio from that CISCO HDMI should be compatible with at LEAST:
ALPCM, Dolby Digital, DTS, DVD-Audio, Super Audio CD, Dolby Digital Plus, Dolby TrueHD, DTS-HD, High Resolution Audio, DTS-HD Master Audio, MPCM, DSD, DST
If I do as T-W advised and set the output for both HDMI & Toshlink to "Dolby Digital" It actually sends , to both some kind of brain-dead limited channel signal, which the Yamaha sees as "Dolby Disabled" and it's completely immune from any kind of Dolby Pro-Logic decoding. The Yamaha can use that signal to "simulate" 20 year old Dolby Stereo, which uses 2 speaker of my 7. That's about the best it seems able to do with it. Setting the Digital Output to HDMI only, result in a useless HDMI audio signal but at least Toshlink is left alone and manages to send a decent signal that the Yamaha, and presumable other Home Theatre Systems can work with.
I can only guess this is some hare-brained DRM scheme at Time-Warner gone astray. Eventually I'll take a De-soldering coil to it and straighten out it's malfunction. T-W will just swap out my failed prototypes. It also needs a bigger hardisk than the 500Giger it comes with AND a commercial skip--I'm told it's in the hardware supports it** (as it always did on TIVO and Replays-- just disabled.at the request of Sony Entertainment et al.
** It's got an instant replay--too brief to be of much use but it's a start.