wireless Posted April 30, 2003 Share Posted April 30, 2003 What does it mean when a CD player say its "digital-to-analog converters work at 24-bit, 192 kHz resolution." Is this just marketing or engineering overkill? Aren't CD's recorded at 44.1 khz and at an 8-bit resolution? -David Quote Link to comment Share on other sites More sharing options...
cyclonecj Posted April 30, 2003 Share Posted April 30, 2003 Back in the 80's when CD players were new, they had "bit wars". One company said 1 bit D/A was better, the other 16 bit, & another said 32 bit. I don't remember any winners. Some sounded better that others. It depends on many other items before & after the D/A converter. I have said it before... Let your ears do the choosing. For another point of reference, I tried to use the digital out on my mid-80's hi-end CD player to connect to my receiver, which has a much newer & higher data-rate D/A converter. It sounded bad, almost grainy. Using the analog connectors, it has a much better, smoother sound, bass is better, highs are very clear. Again... Let your ears do the choosing, not the advertising team. Quote Link to comment Share on other sites More sharing options...
Marvel Posted May 1, 2003 Share Posted May 1, 2003 44.1K and 16 bit Marvel Quote Link to comment Share on other sites More sharing options...
djk Posted May 2, 2003 Share Posted May 2, 2003 Data on a CD is stored as an 8 bit word. The first 7 are level steps and the 8th is ± polarity, thus you get 14 bits (eight to fourteen modulation). A 16 bit DAC allows for oversampling and digital filtering, the goal here is to avoid brickwall filters at 20Khz. 24 bit DSP chips use 8 bits for housekeeping (math processing) and 16 bits for the signal. Quote Link to comment Share on other sites More sharing options...
Marvel Posted May 2, 2003 Share Posted May 2, 2003 djk, Are we really at odds here? CD audio or a wav recorded on a CD is 44.1k with a 16bit resolution. You can't write a 24bit wav file to a redbook CD. The way that info is stored is a different matter, as you point out. Marvel Quote Link to comment Share on other sites More sharing options...
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