Talk:Composite video

This is the talk page for discussing improvements to the Composite video article.
This is not a forum for general discussion of the article's subject.

Put new text under old text. Click here to start a new topic.
New to Wikipedia? Welcome! Learn to edit; get help.

Article policies

Find sources: Google (books · news · scholar · free images · WP refs) · FENS · JSTOR · TWL

Archives: 1: 365 days

Professional sound production Mid‑importance

	This article is within the scope of WikiProject Professional sound production, a collaborative effort to improve the coverage of sound recording and reproduction on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.Professional sound productionWikipedia:WikiProject Professional sound productionTemplate:WikiProject Professional sound productionProfessional sound production articles
Mid	This article has been rated as Mid-importance on the project's importance scale.

Electronics Mid‑importance

	Electronics portal This article is part of WikiProject Electronics, an attempt to provide a standard approach to writing articles about electronics on Wikipedia. If you would like to participate, you can choose to edit the article attached to this page, or visit the project page, where you can join the project and see a list of open tasks. Leave messages at the project talk pageElectronicsWikipedia:WikiProject ElectronicsTemplate:WikiProject Electronicselectronic articles
Mid	This article has been rated as Mid-importance on the project's importance scale.

Media Mid‑importance

This article is within the scope of WikiProject Media, a collaborative effort to improve the coverage of Media on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.MediaWikipedia:WikiProject MediaTemplate:WikiProject MediaMedia articles

Mid

This article has been rated as Mid-importance on the project's importance scale.

WikiProject Media To-do List:

Here are some tasks awaiting attention:

Article requests : Mackay Radio
Cleanup : Media influence, Video game culture, Sound bite
NPOV : Content (media and publishing)
Verify : Multimedia, Alternative media, Alternative newspaper
Other :
- Answer requests for comments

Illustration[edit]

Would it be possible if someone made an illustration or graph of how it is done getting 3 signals (YUV) in one "plug" with only 2 connectors? I'm very curious about that, atleast, but dont nearly have enough background knowledge to do it. anon 10:56, Jun 17, 2010 (UTC)

Noise[edit]

The process of modulating RF with the original video signal, and then demodulating the original signal again in the TV, introduces several losses. This conversion also typically adds noise or interference to the signal as well. Other than noise, what are the losses? In theory, one can modulate an ideal carrier, and demodulate it again. The low signal levels of RF (it has to match what one could receive on an antenna) means noise is significant. (You can't escape thermal noise.) Generating a proper vestigial sideband signal is also tricky, but again, it can ideally be done without loss. Spectral errors aren't really losses, either. Gah4 (talk) 16:59, 28 May 2016 (UTC)[reply]

In theory, no problem but in the real world it is an additional two steps and the advice to avoid unnecessary modulation/demodulation when possible is sound. ~Kvng (talk) 17:03, 25 April 2021 (UTC)[reply]

modern day[edit]

The article indicates that Modern day devices with analog outputs have typically omitted the modulator option. I suppose, but a very popular modern day device is the HDTV converter, which most often does have RF output. But yes, I suspect that they are less common on DVD players and such than they used to be. Gah4 (talk) 22:40, 26 August 2019 (UTC)[reply]

I have removed the modern day claims. They were dated and uncited. ~Kvng (talk) 17:03, 25 April 2021 (UTC)[reply]

Reference to analog TV tuners[edit]

this part: "TV sets sold these days no longer have analog television tuners and cannot accept channel 3/4 from a modulator. But because composite video has a well-established market for both devices that convert it to channel 3/4 outputs, as well as devices that convert things like VGA to composite, it has offered opportunities to repurpose older composite monitors for newer devices."

Is nonsense. Maybe analogue TV tuners don't exist in the author's country anymore. But my brand new sony tv has one.

I assume by "channel 3/4" the writer is referring to north america. — Preceding unsigned comment added by 2A02:A442:581E:1:3595:B7C4:F757:236D (talk) 22:19, 16 March 2022 (UTC)[reply]

I have made some improvements ~Kvng (talk) 20:09, 5 April 2022 (UTC)[reply]

AHD[edit]

Should AHD be mentioned as an upgrade for Compsite? Having lot of problems finding a spec. https://www.delko.si/en/kamere-in-video-nadzor/ahd-high-definition-standard.html --Kitchen Knife (talk) 14:12, 20 June 2022 (UTC)[reply]

I think AHD is required to establish notability first, as indicated by its own article. I don't think that's warranted currently. --Zac67 (talk) 14:31, 20 June 2022 (UTC)[reply]

Of the several competing systems(CVI * TVI) it does seem to be coming out on top, though with so many acronyms and so little data on the protocols themselves I may have missed something.--Kitchen Knife (talk) 19:00, 20 June 2022 (UTC)[reply]