Digital Audio Extractors. HDMI Versions, HDCP and Newer TVs? - AVS Forum | Home Theater Discussions And Reviews
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post #1 of 3 Old 12-01-2019, 05:31 PM - Thread Starter
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Digital Audio Extractors. HDMI Versions, HDCP and Newer TVs?

Hi,

My wife and I are thinking of heading over to the local Costco tomorrow and grabbing a TV upgrade for the family room. Then it struck me: We're using a digital audio extractor on the HDMI connection between our Amazon Fire TV and the TV so we can get digital audio over to our legacy Yamaha receiver. I discovered, quite by accident, that this thing appears to be stripping HDCP from the HDMI stream, because, after I installed it, we started getting digital audio from the TV when the Fire TV was selected on the TV.

I don't really care about that (even though I feel that's the way these things should work), because I can get digital audio directly from the extractor to the receiver.

What I am concerned about is whether that extractor being there, and stripping HDCP, is likely to cause issues with a newer TV? I'd really hate to haul the thing all the way home just to have to box it up and return it.

Thanks in advance.
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post #2 of 3 Old 12-02-2019, 10:04 AM
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FireTV > TV - if you are not receiving audio it is most likely because the wrong audio type is being Output by the FireTV and the TV cannot decode the audio.

FireTV > Audio Extractor > TV - it is likely the Audio extractor is either forcing the FireTV to stream a stereo audio signal and or the Extractor is down converting the source signal to stereo audio (2.0 PCM).

Audio Extractor - which device do you have?

Legacy AVR - which device do you have?

FireTV > Audio Extractor > New TV - ought to work just fine.

Joe

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post #3 of 3 Old 12-02-2019, 01:47 PM - Thread Starter
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Thanks for the follow-up, Joe!

FireTV -> HDMI audio extractor -> TV (HDMI) and Receiver (S/PDIF)

I do this because the legacy receiver has no HDMI inputs and the FireTV has no S/PDIF output. Actually, audio-wise, it's

Code:
    TV -->  |
FireTV -->  | --> audio switch --> receiver
  DVR+ -->  |
Because, while the TV and DVR+ do have S/PDIF outputs, the receiver has only one input for the three.

I discovered, after putting the HDMI audio extractor in that I was getting 5.1 digital when the TV was selected on the audio switch but the TV's input was on the FireTV. Normally the TV will not pass digital audio through from HDMI-connected devices.

The concern is a new TV would have a newer HDMI standard which might refuse to work with the HDMI signal from the audio extractor.

The digital audio extractor is a J-Tech Digital HDMI 1.4 Audio Extractor De-Embedder [email protected] Optical SPDIF Toslink RCA [JTD4KATSW]

The receiver is a Yamaha RX-V795 5-ch. DTS receiver

Last edited by SEMIJim; 12-02-2019 at 02:30 PM.
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