HDCD player with 18bit DAC? How?

Discussion in 'Archived Threads 2001-2004' started by David Ely, Nov 11, 2001.

  1. David Ely

    David Ely Supporting Actor

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    Okay, I'm a little confused.
    If I usderstand HDCD correctly, it includes 4 extra bits of information. This will allow 20-bits of information on an HDCD. There are a lot of HDCD players on the market (Denon 370 being the most popular) that have 18-bit DACs. Isn't this totally defeating the purpose of HDCD? Aren't you going to loose 2 of the extra 4 bits within the DACs?
     
  2. David Ely

    David Ely Supporting Actor

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    Anyone?
     
  3. Saurav

    Saurav Cinematographer

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    I'm not sure the data word length (or width, if you will) and the number of bits in the DAC have a one-to-one correspondence. For instance, I've seen CD players with 1-bit DACs, and some feel that 1-bit DACs sound better than multi-bit DACs. Obviously, a 1-bit DAC has some way of handling the 16 bits of regular PCM audio. This probably works by accumulating bits in some way, instead of reading in the whole word in parallel and generating the analog value based on that.
     
  4. Kevin P

    Kevin P Screenwriter

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