sound of jitter

Hi guys, I wonder, how does jitter actually sound? Is it a sort of coloration that gives a nasty hard edge to the music or just the opposite (warm, glowing tube-like character, hehe). Is the ugly sound which emanates from the early CDP's (from the 80's) only contributable to jitter? What is your opinion: is jitter the only shortcoming which keeps CD's from sounding analoge-like? If this is the case, a zero jitter CDP should sound similar to good analoge.
Eliminating jitter will not result in what audiophiles consider analog sound. There are any number of D/A converters and other outboard devices that reclock the incoming digital datastream and thereby eliminate jitter, yet they don't sound analog like.
Take a highball glass and then put in three ice cubes. Put in a large amount of bourbon. Pick-up glass. Shake hand from side to side in short quick movements. That is jitter. Cure for jitter? Drink glass full of bourbon.
Jitter leaves the music slightly fuzzy, notes do not have a perfect 'feel'. Subtle, like the sheen on the violin section of an orchestra. But once you recognize it, you will have a hard time ignoring it. So forget looking for it if you do not know what it is!
Ignorance is bliss!!!
Onhwy61 - these devices usually reduce jitter, they do not eliminate it.

Jitter can sound like high-frequency sibilance or like echoes or halos around the instruments.
I don't really think it's something you hear, but it is something you ntoice when it's gone. I don't think usually jitter adds sound. I think of it more as something that doesn't allow the information to be passed corrupts the data. When the jitter is lowered, more information is passed correctly, and you hear more of the details cpatured in the original data. When I upgraded my transport I heard more details and more of everything...everything was more realistic and transparent. My old transport still sounds great with the same DAC, but the better transport passes more information intact.
I think what MakersMark is describing is the sound of jigger ;o)

Judging by his moniker, I'd guess he's heard that sound before.
Casablanca III also features Theta’s proprietary Jitter Jail circuitry,,,,,,Go Theta ! Jitter Jail , I love it ~!
Why speculate? Stereophile has an excellent demonstration of the effects of jitter on their Test CD 2 available at for $9.95; lots of other good stuff on this disc as well.
Oh no Mmrog, those cubes jingle jangle jinglin' on the side of the glass is the sound of jitter. Yes I have heard that sound many times. The cure I describe for jitter works everytime. Makersmark is my favorite brand for the cure. It is a multipurpose cure. Cures bass bloat, harsh midrange etc. It does kind of make imaging less ditinct for some reason.
Jitter distortion is a subset of digital sound, very ugly. ;)
OK, here's my detailed description of what jitter "sounds like." Really, the question is how jitter impacts the music, ie. how it negatively impacts the music.

Jitter will destroy the microdynamics in the music that allow you to "enter in" to the music and enjoy it. Details will be "blurry" and thus imperceptible or require unusually high amounts of concentration to perceive, since they are experiencing artificial time distortion and thus your brain has a hard time recognizing them. Phase gets messed up and the details can often literally disappear. This tends to cause macrodynamics to be emphasized, so you will hear all the "big" sounds just fine, but they will be artificially pronounced because all the little details are smeared away.
This makes for boring, not moving, music.

Jitter *can* also have impact on a particular frequency range of the music. Often, it will result in diminished bass. Musicians will tend to "wobble" or "flutter" L R rather than be fixed like a stone in a specific place. Instuments will seem to come from one or the other speaker rather than from somewhere between the speakers.

When you listen to a low-jitter recording on low-jitter equipment, you will have the experience of hearing the entire musical landscape in wonderful focus and you will be able to see deeper into the music, rather than experiencing a flat, macro, uninvolving presentation. Music with a lot of jitter won't generally offend you tonally (like "too bright", etc.) but it will simply not present the detail you need to stay interested for very long.

If you had a switch with which you could turn a certain amount of jitter on and off, you could switch it back and forth and you would probably *NOT* notice an immediate sonic difference. However, with the jitter off, you would find that in 30 seconds you would be enjoying the music and experiencing it rather than trying to follow it by concentrating. Jitter will impact your ability to enjoy the *rhythm* of music. You can definitely notice the difference, but it is not a tonal difference that you will pick up immediately. It is a "bluriness" difference. It is a "how much do I have to concentrate to really experience the details of this recording" difference.

Also, remember that jitter gets worse when you have bad power being delivered to your system. So if you add a good power filter to your system, or a balanced power unit, and you get more focus, detail, musicality, etc., a lot of that probably has to do with jitter reduction caused by supplying clean power to your equipment. Power fluctuations will introduce jitter during playback. If your system sounds more focused and musical at night, that may have a lot to do with your AC power being cleaner and your digital gear giving you less jitter.

You can also reduce jitter by ripping your CDs to a PC and using a pro audio card to send the data to your DAC. This eliminates transport jitter, which is jitter caused by imperfections in the mastering of CDs and imperfections in the spinning and reading of the data in realtime (1x speed) by the laser.

Also, remember that many CDs will be mastered with jittery equipment, so the data you have on CD is un-dejitterable. But you will find that some CDs have low jitter and will come into focus much more when you clean up your own system's jitter problems. Others won't.

Hope that helps :)