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Coax SPDIF 2CH PCM signal from Displayport/HDMI

  • aRPiieS Friday, September 8, 2017 3:54 PM Reply

    Hello fellows!!!

    What would be the most simplest, best working and sounding way to use long over 5-7 meter HDMI-cable on transferring only digital hi-resolution PCM-stereo signal in 16 to 32 bit form. and sample rates ranging from 44.1 to 192kHz?

    My USB supports only upto 24/96 as it is old 2.0 and it does not have enough bandwidth.


    How would these cables work directly, I think that they have to be connected onto receiver (AV-amp/TV) also so that computer receives "cable connected signal" back which activates HDMI-audio output and determines that what form. of audio signal will be sent via  which data-pair. I have understood that downgrading HDMI closer to 1.0 rather than 1.4 works better because I have to get the "cable connected signal" from TV and if computer receives all the info, it will compress and limit audio stream into very low grade. 1.0 do cover un-compressed 2CH PCM signal all the way to 32/192 and ends pretty much there but that is is all I need, no more, no less.

    Also these boxes are available but I believe that most of them modify or degrade signal quality when stripping audio from HDMI. Also coax output form. is a must, optical connection usually limits signal to 24bit 176kHz while coax covers the whole range upto 32bit 192kHz.






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