What does "jitter" sound like????

On my EAD DSP-7000 MKII there is an error indicator that shows a "jitter" or error reading a digital data. You can hear the jitter from the good quality DAC coupled with bad quality CD-player or Transport. Usually when it there is an error occured from the digital output very often DAC's possibility to correct a huge amount of "trash" is limited and it goes on and on and on up to the end of CD. Even if there is a jitter reducer is present, it may not be enogh to eliminate it.
It sounds like a part of the sound bandwidth dissapears or becomes shallow and unrecognizable. It may be bass, midup or midlow -- any part that you actually cannot predict. At the same time, if I use an analogue output of CD-player without my DAC, everything goes more or less stable certainly with large overall audiable performance sacrifice.
You WILL NOT hear it if there is a good quality dedicated transport coupled with decent DAC, also if there is a bad quality player coupled with the bad quality DAC(with huge amount of oversampling) since the bad quality DACs aren't that sensitive to errors and designed to enhance the signal rather than linearly reproduce it.
The ideal DAC does not have any oversamplings.
These tests were made with Rega Planet CD-player in comparison with my dedicated Monarchy Audio DT40b transport.

marakanetz: you say "The ideal DAC does not have any oversamplings" really? from where does your information or opinion derive? -kelly

Marakentz, interesting point. But last time I remember, Rega was not a player in the digital wars. I've compared Wadia, Levinson, and Resolution Audio, here all at once. My favorite was the R.A. I have to disagree about the upsampling. It is the smoothest, most analog I've heard, atleast in my system. I heard it against the Rega, nolo contrendre.

Thanks for the info. I was just curious, because I recently hooked up my old Studer A727 CDP (their pro model from the 80s...it's very similar to the Revox B226, but beefier everything) and began using it as a transport for my EVS Millenium 2 DAC (with Cardas Lightning 15 RCA coax cable). It sounds amazing to me. It's the most balanced, realsitic sound I've had yet. There is a huge amount of low level info. I thought my old Denon DCD-2650 sounded much better than my Pioneer DV-05, and this sounds much better than the Denon (and the Denon is also built like a tank).

I was wondering about the jitter, because I've always heard that the older players have plenty. If that's true, I don't see how this player could sound so much better than my newer players. Is the Millenium DAC 2 capable of dealing with the jitter on it's own? Is that possible? I've heard that the Crystal chip lowers jitter a huge amount, and the Millenium DAC does use that chip. I thought about trying a DIP jitter reducer, but I don't see how jitter could be an issue when it sounds so much better than my other players. If there was a high amount of jitter, I would think it would sound much worse.

Now that the DAC's have gotten so much better in the last few years it is much easier to hear the differences in the overall quality of trhe digital signal coming from various transports. Jitter is not the only thing that can cause poor sound from a transport. In my experience most older transports have poorly designed, poorly regulated and poorly filtered power supplies. These power supplies and their associated digital circuits put a far amount of eleictrical junk onto the digital output. However, and usually more importantly, many digital units put a tremendous amount of noise back on the AC lines where it can pollute other pieces of equipment. This is easily demonstrated with a noise sniffer or Oscilloscope. Your Studer, being a pro audio unit from a company known for its fanatical attention to engineering detail probably has a well designed power supply. That said, a jitter reducer like the Theta TLC which I use to isolate my digital satillite using the ATT glass output might make it sound even better. Carefully isolating the AC power supplies from one another also probably will improve your overall sound.