Differences in digital coax out

Discussion in 'Blu-ray & DVD Players & Recorders' started by 008, Oct 30, 2003.

  1. 008

    008
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    Using the digital coax out from any DVD player in to a surround sound prosessor should yield the same results, no? if this is so then when choosing a DVD player in this set up surely the player should be chosen on video abilities alone ?
    Any opinions ?
     
  2. John Dawson

    John Dawson
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    It is a common misconception that all digital outputs are created equal. They are not - the signal will have varying levels of jitter on it depending on the quality of the player's audio master clock and also the frequency response (rise time) of the output, the impedance characteristics of the cable and so on. Jitter is essentially all about timing errors between one digital pulse and the next one.

    Most receivers derive the clock used for the receivers DACs directly from this signal - the quality of the transmitted digital signal is then paramount. Frankly the quality of clock recovery on the average receiver is none too good either, even with a perfect source, but that's another story.

    This is a quick summary of a complex subject - I hope it helps you! We spent a lot of time on this topic when designing Arcam's DVD players and the improvement in sound quality from doing it right is definitely audible.

    John Dawson (Arcam)
     
  3. lowrider

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    :nono: :nono: :nono:
     

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