Talk:Jitter/Archive 1

Archive 1

Moved from end of article

"The word 'jitter' can be used to refer to those people who dress mainly in black, keep their hair long and listen to punk rock."

Yep. 80.203.115.12 17:16, 27 October 2005 (UTC)

Questions About Jitter

Most of these are questions about jitter that occurred to me while reading the article.
Maybe I will even try answering some of them.  :-)

• What distinguishes jitter from noise in general?
• Is jitter always random, or can it be deterministic too?
• Why does jitter cause problems?
• Can jitter cause problems in analog systems in addition to digital systems?
• Where does jitter occur in CD/DVD drives?
• What causes jitter?
• What is an eye diagram and how is it used?

--Jtir 21:27, 9 September 2006 (UTC)

The pdf available at the Audio Precision website has information on digital audio jitter, 'Measurement Techniques for Digital Audio' by Julian Dunn. http://ap.com/library/technotes.htm Enescot 21:18, 16 March 2007 (UTC)

Jitterlyzer

The following conversation originated at User talk:Daichinger and User talk:DragonHawk, and was moved here. See also article history.

Hi, why are you deleting the additions I am making to the Jitter page? --Daichinger 13:36, 11 July 2007 (UTC)

Because it appears to be an advertisement. Please see the links in the warnings above for why. I've reverted three times now. Further reverts would be frowned upon, so next I will contact the admins and let others decide, but I will warn you that you may get blocked from editing Wikipedia if you don't at least attempt to justify your actions. —DragonHawk (talk|hist) 13:46, 11 July 2007 (UTC)

I think the Jitterlyzer should be added to this page because it is the only device that can measure Jitter in sRIO and PCIe. These are buses that are significantly used in industry and thus the Jitterlyzer should be included. --Daichinger 14:06, 11 July 2007 (UTC)

Again, please read the pages I have linked to. Wikipedia is not a vehicle for advocacy. It is not a place for personal opinions. If you can cite a reliable source as to why this product is somehow notable, then do so. If you're just pushing a product, you're in the wrong place. —DragonHawk (talk|hist) 14:16, 11 July 2007 (UTC)

How is this?

The Jitterlyzer performs physical layer serial bus jitter analysis. It is able to inject a controlled amount of jitter and measure the characteristics of incoming jitter. This is usefull when a user needs to see if the eye is going out of scope, which will cause a high bit error ratio.

• cited from

--Daichinger 21:01, 11 July 2007 (UTC)

I don't consider a press release announcing a product a reliable source. Other Wikipedians may disagree with my opinion on that. If you believe you have no conflict of interest here, and you are not just trying to promote or advocate this product, we can ask for a third opinion.

Let me ask you this: Why are you so keen on getting mention of this product added to the article? What is your motivating interest here? If you explain where you are coming from, it might help myself and others understand why this product deserves mention in an encyclopedia.

By the way, in case it isn't obvious, when I link to something (like this), that is an invitation for you to click the link and read up on guidelines that help explain my position. If you understand and speak to said guidelines, we will both have a much easier time. Thanks!

—DragonHawk (talk|hist) 00:33, 12 July 2007 (UTC)

This article is about jitter, it lists ways to measure it, reduce it, and prevent it. The measuring aspect currently only covers measure DVDs and CD-Roms and it is just a single line a stub if you will. Those measuring devices are called Jitter-meters. Later in the acticle it 'specifically' talks about clock jitter. A jitterlyzer measures clock jitter. I was wrong in mentioning a specific product. It is a brand new type of test equipment and doesnt currently fall under category of jitter-meter which acording to this article only covers DVDs and CDs. So since this article talks about jitter in CDs and mentions ways to measure it, should'nt it also cover ways to measure clock jitter?

Further more I believe I am inside the gidelines that are set forth in the links above. I am trying to make this wikipedia article more comprehensive.

--Daichinger 13:46, 12 July 2007 (UTC)

Fair use rationale for Image:Unstressed Eye.PNG

Image:Unstressed Eye.PNG is being used on this article. I notice the image page specifies that the image is being used under fair use but there is no explanation or rationale as to why its use in this Wikipedia article constitutes fair use. In addition to the boilerplate fair use template, you must also write out on the image description page a specific explanation or rationale for why using this image in each article is consistent with fair use.

Please go to the image description page and edit it to include a fair use rationale. Using one of the templates at Wikipedia:Fair use rationale guideline is an easy way to insure that your image is in compliance with Wikipedia policy, but remember that you must complete the template. Do not simply insert a blank template on an image page.

If there is other fair use media, consider checking that you have specified the fair use rationale on the other images used on this page. Note that any fair use images uploaded after 4 May, 2006, and lacking such an explanation will be deleted one week after they have been uploaded, as described on criteria for speedy deletion. If you have any questions please ask them at the Media copyright questions page. Thank you.

BetacommandBot 22:34, 25 October 2007 (UTC)

Should this be merged with Delay Jitter?

http://en.wikipedia.org/wiki/Delay_jitter —Preceding unsigned comment added by 202.124.85.135 (talk) 00:23, 30 October 2007 (UTC)

Even better, merge Delay jitter with Packet Delay Variation, of which it is a synonym. I have just done the deed. --Heron (talk) 13:32, 10 May 2008 (UTC)

Huh?

This article appears to be written for an audience that already understands what jitter is. I can't make much sense out of the definition of jitter period at all. A clear example would help. There is a lot of noisy repetition of signal charateristics in the first few paragraphs as well. I came here from a link for jitter buffer, but it is just assumed that the reader understands what this is. I don't know whether it's hardware or software, and no link is given to help me sort it out. My point: the article doesn't stand on its own very well.

99.138.130.71 (talk) 23:46, 27 June 2008 (UTC)

Scattered information

There's a lot of information about jitter scattered about Wikipedia. Notably, Analog recording vs. digital recording#Jitter and Analog-to-digital converter#Aperture_error cover important details on sampling jitter. Some other pages probably need to be absorbed into this page.

Because this page covers jitter in a few different contexts, it may be appropriate to break out a separate article sampling jitter, and make that the main article referred to by the Analog v. Digital page. In that case, some of Special:WhatLinksHere/Jitter should be updated. --212.44.20.129 (talk) 15:37, 4 January 2010 (UTC)

The wander page is more or less already included within the main jitter article, and is a verifiable stub. upvoted. --216.157.201.45 (talk) 21:23, 1 August 2012 (UTC)

Wander has been merged. --Kvng (talk) 15:54, 5 August 2012 (UTC)

What is ITU-T G.810? — Preceding unsigned comment added by 76.169.116.140 (talk) 15:42, 7 March 2013 (UTC)

Jitter

What s Jitter an different View? — Preceding unsigned comment added by 59.145.174.78 (talk) 16:23, 16 January 2014 (UTC)

Split up Clock jitter

away from the multimedia stuff. Fgnievinski (talk) 00:59, 8 July 2014 (UTC)

Difficult to assess this proposal without more detail. Typically a split proposal move a section or sections of an existing article to a form a new article. There is no Clock jitter section in this article. You are always free to be WP:BOLD and create a new article but I think it would be better to improve this article. ~KvnG 13:47, 11 July 2014 (UTC)

Quick pitch for citations, etc.

This article is clear, well-written and with a dry, academic tone. That is one guess I offer why someone might reasonably propose merging related content. Although I'm not volunteering to do it, and where might that precedent end? — Preceding unsigned comment added by Fjeinca (talk • contribs) 01:22, 15 August 2014 (UTC)

BER-claim of 1E-12 for Ethernet is not based on facts

This source shows different numbers, I can't find anything about it in the 802.1 specification.

I think it is better use FiberChannel specifications for this article, because it is more clear on this issue. 95.128.94.226 (talk) 11:30, 30 March 2016 (UTC)

Link to manufacturer's website

The link to the Phabrix website in the External Links section seems to be nothing but advertisement, it links to the website of a device manufacturer without any comment why this would be relevant to the article. 193.174.67.20 (talk) 11:38, 27 April 2016 (UTC)

Thanks! Fixed. ^{Talk to} SageGreenRider 12:00, 27 April 2016 (UTC)