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Is it just me or does S-video standfor SEPARATED video ? mean Y/C on tape and thus , better quality
Well, back when the ONLY product that used an "S-Video" jack was an S-VHS VCR, it )in the JVC S-VHS decks manuals) referred (as well as many products around the late 80's/early 90's) to the jack as a S-VHS jack, not S-video. S-video came into play once S-VHS failed to gain popularity and DVD, videogames and other devices started using the S-VHS jack since it was the best until component.
I hate revisionist history... —Preceding unsigned comment added by 162.115.236.120 ( talk) 20:07, 22 May 2009 (UTC)
No mention of PAL, only NTSC specific. Could somebody with more knowledge please expand this article? Peter S. 18:51, 5 April 2006 (UTC)
We have something approaching a contradiction. Top paragraph says: "when timeshifting TV programs on S-VHS equipment, the improvement over VHS is not noticeable" The bottom paragraph says: "Nevertheless, viewing an S-VHS recording through a VCR's built-in RF modulator yields a discernable perceived quality improvement over VHS"
They're not quite saying the same thing, the first is talking about timeshifting and the latter about an RF hookup (which is presumably used for timeshifting, what else?). The truth is of course that it is subjective. Some people can see the difference between VHS and SVHS, some can't. It's influenced by the tape, recording source, monitor and make/model/condition of machine. I've seen one set of VHS recordings (only one mind you!) which was so clear, noiseless, and carefully made as to subjectively surpass many recordings made by low-end S-VHS decks. Often however VHS is a fuzzy noisy mess and S-VHS is a less noisy fuzzy mess.
Without making it all too wordy, we should modify these phrases to ensure that both tend to point to a superior performance of S-VHS over VHS which may or may not be immediately obvious depending upon various factors. Volunteers to clean this up? Colin99 15:50, 2 January 2007 (UTC)
Could someone with knowledge in this area expand the explanations of S-VHS ET and SQPB, paying particular attention to where S-VHS recordings on S-VHS medium is viewable (only S-VHS decks?) and where S-VHS ET recordings on "normal" VHS medium is viewable (is it viewable on standard VHS decks or only those that support a special "S-VHS ET" format?). What does SQPB stand for and what is it (medium, technology, recording format, etc)? Also the sentence "As a sidenote, most S-VHS VCRs can also make VHS recordings on S-VHS tape, and conversely, conventional VHS VCRs can record on S-VHS videotape" is a bit wordy and confusing as to its exact meaning. —The preceding unsigned comment was added by 68.153.109.3 ( talk) 20:07, 13 April 2007 (UTC).
JVC, Matsushita(Panasonic), and at least one other company made combo decks that had both an S-VHS transport and a MiniDV transport. Many of them also included a Firewire port for connection to a computer. What I've never been able to find out is whether or not they provided computer control of the the S-VHS transport or direct digitizing from it, or if to digitize from VHS one had to first copy to a MiniDV tape. —Preceding unsigned comment added by 208.100.251.47 ( talk) 10:48, 5 September 2007 (UTC)
SVHS is the follow-up of the video recording VHS, a video-recording standard, the old competitor of BETAMAX(SONY) and of VIDEO2000(PHILIPS). I am a PHILIPS man and in those days the competitors trick was to use a new way of transferring the video from the recorder to the TV. Instead of offering the usual composite signal of both Colour and Video Base band Signals: CVBS, where both signals: Colour and Black and White were mixed together, they send both signals separated to the TV. This excluded the necessity of using a signal-separation filter in the TV, thereby decreasing cross-interferences between both signals and.. improving Bandwidth and off course...... improving the definition of picture details! Because of that, PHILIPS and SONY just called the same idea: Y/C-signal-transfer. Y for video black/white and C for Color. I think the S originally stood for 'super', but the word 'separate' is actually better, because of the nature of the video-connection. So SVHS is correctly replaced by S-Video, forgetting the recording history. —Preceding unsigned comment added by 77.248.104.2 ( talk) 20:40, 9 April 2009 (UTC)
Editor Hinata removed the "needs citations" parameter from the "multiple issues" template, saying that the article does "site[sic] references". And has now done so twice.
WP policy requires that inline citations (and it's Citations, by the way, not Sitations) be present for "any material challenged or likely to be challenged, and for all quotations" (see WP:CITE, WP:V), and that citations are strongly recommended for everything else: "All material in Wikipedia articles must be attributable to a reliable published source to show that it is not original research".
The policy does also state that "in practice not everything need actually be attributed", but that does not mean that two inline citations are sufficient for an article of about 20 paragraphs. Ideally it means a citation for every statement or claim of fact.
And by the way... the two citations that are present here do not even directly apply to the article topic! One is used to justify a statement regarding poor chroma resolution of other video tape formats, and the other for the resolution of HDV!
Sorry but the notion that this article has enough references or inline citations is completely unsustainable. I did change the parameter from "unreferenced" ("it does not cite any references or sources") to "citations missing" ("It is missing citations or footnotes"), as that is a better fit. Jeh ( talk) 23:17, 21 September 2010 (UTC)
this article is confusing. what are "-lines" that it keeps referring to? IWannaPeterPumpkinEaterPeterParker ( talk) 21:09, 15 January 2012 (UTC)
These are extremely subjective, because the Kell Factor and EIA chart are very subjective results, as they rely solely on what different human eyes perceive, as well as how the different equipment is manufactured and processes the information. There is no scientific evidence that S-VHS is 400 lines, because it might appear that way to someone in their sixties, but for a twenty-year old they could, quite possible and depending on their equipment be able to make out up to 950 lines. What is scientifically known are the frequencies that the video is recorded at. S-VHS for instance records and plays back it's luminance between 5.4 and 7.0 MHz, depending on record speed and type of tape used, while its chroma is always recorded at 629kHz, but is up converted to the NTSC and PAL standards on playback. Compare this to Super Betamax that records between 4.4 and 5.6MHz with chroma stored at 688 kHz. Thus the comparisons on all the pages related to video recording should not be here, because they provide information that is not scientific and are very subjective conclusions that are misleading. 24.156.246.33 ( talk) 15:40, 19 August 2013 (UTC)
Is S-VHS Can Be Recorded In The VHS VCR In Standard VHS Quality — Preceding unsigned comment added by 186.93.24.96 ( talk) 00:07, 19 July 2016 (UTC)
I Owned A Samsung VCR But It Can Record S-VHS Tapes? — Preceding unsigned comment added by 186.93.24.96 ( talk) 01:59, 20 July 2016 (UTC)
S-VHS had around 400 tv scanlines of resolution, while NTSC had 480 active and 525 total scan lines. 330 scan lines for NTSC is wrong. Rockclaw1030 ( talk) 14:35, 25 May 2018 (UTC)
OK, one big confusion is that most often, but not always, lines means line pairs, especially in the analog case (horizontal in TV signals). In the discrete (raster) case, lines often means lines. For video signals, there are many ways to lose bandwidth, filtering being a favorite. In the case of video tape, with an FM luminance channel, it is even worse. The bandwidth of an FM signal is a complicated function of the bandwidth of the modulation, in theory going to infinity. FM is needed for luminance, which goes down close to 0Hz (close enough) and up to some MHz. The limitations of lower quality tape are hard to quantify. There is the capture effect for FM demodulation (though that page does a poor job of explaining it). One result of the capture effect is that the S/N after demodulation is much higher than before. Gah4 ( talk) 23:32, 25 May 2018 (UTC)
Some day someone with too much time on their hands may want to substantiate the references to S-VHS tape in
1) Blue Thunder when Lymangood learns of the tape storage in the Blue Thunder helicopter and knows of a similar system from his time on an aircraft carrier. 2) Red Storm Rising by Tom Clancy where it is used in a recording system mounted on F-14 Tomcats who are surreptitiously trailing a flight of bombers to see where they are headed. Both of which refer to or call back to uses by the U.S. Navy. ...and place them in a Popular References section. This assumes it's worth the effort which I am not at all sure that it is. — Preceding unsigned comment added by 50.34.131.98 ( talk) 23:37, 4 April 2020 (UTC)
The article often mentions the 0.4MHz limit of the chroma signal, and how much worse that is than broadcast. With I-Q modulation, and not well described in NTSC, I has 1.2MHz and Q has 0.5MHz limit. But NTSC was designed to make it easy to decode along the blue and red axes, with only 0.5MHz resolution, and just about all TVs made do that. (There are a few exceptions.) So, 0.5MHz is more than 0.4MHz, but not a lot more, and I suspect one would have to look pretty carefully to see the difference. NTSC did the actual studies to find which color differences people can see with more resolution, and came up with the I-Q axes to match. As well as I know, neither PAL nor SECAM followed that. Gah4 ( talk) 22:22, 16 February 2022 (UTC)
In the section discussing S-VHS vs. ED-Beta, there is this sentence: "In PAL markets, depth multiplexed audio was used for both formats." Did PAL ED-Beta exist? 86.142.94.246 ( talk) 09:06, 17 September 2023 (UTC)
This article is rated C-class on Wikipedia's
content assessment scale. It is of interest to the following WikiProjects: | |||||||||||||||||||||||||||
|
This article links to one or more target anchors that no longer exist.
Please help fix the broken anchors. You can remove this template after fixing the problems. |
Reporting errors |
Is it just me or does S-video standfor SEPARATED video ? mean Y/C on tape and thus , better quality
Well, back when the ONLY product that used an "S-Video" jack was an S-VHS VCR, it )in the JVC S-VHS decks manuals) referred (as well as many products around the late 80's/early 90's) to the jack as a S-VHS jack, not S-video. S-video came into play once S-VHS failed to gain popularity and DVD, videogames and other devices started using the S-VHS jack since it was the best until component.
I hate revisionist history... —Preceding unsigned comment added by 162.115.236.120 ( talk) 20:07, 22 May 2009 (UTC)
No mention of PAL, only NTSC specific. Could somebody with more knowledge please expand this article? Peter S. 18:51, 5 April 2006 (UTC)
We have something approaching a contradiction. Top paragraph says: "when timeshifting TV programs on S-VHS equipment, the improvement over VHS is not noticeable" The bottom paragraph says: "Nevertheless, viewing an S-VHS recording through a VCR's built-in RF modulator yields a discernable perceived quality improvement over VHS"
They're not quite saying the same thing, the first is talking about timeshifting and the latter about an RF hookup (which is presumably used for timeshifting, what else?). The truth is of course that it is subjective. Some people can see the difference between VHS and SVHS, some can't. It's influenced by the tape, recording source, monitor and make/model/condition of machine. I've seen one set of VHS recordings (only one mind you!) which was so clear, noiseless, and carefully made as to subjectively surpass many recordings made by low-end S-VHS decks. Often however VHS is a fuzzy noisy mess and S-VHS is a less noisy fuzzy mess.
Without making it all too wordy, we should modify these phrases to ensure that both tend to point to a superior performance of S-VHS over VHS which may or may not be immediately obvious depending upon various factors. Volunteers to clean this up? Colin99 15:50, 2 January 2007 (UTC)
Could someone with knowledge in this area expand the explanations of S-VHS ET and SQPB, paying particular attention to where S-VHS recordings on S-VHS medium is viewable (only S-VHS decks?) and where S-VHS ET recordings on "normal" VHS medium is viewable (is it viewable on standard VHS decks or only those that support a special "S-VHS ET" format?). What does SQPB stand for and what is it (medium, technology, recording format, etc)? Also the sentence "As a sidenote, most S-VHS VCRs can also make VHS recordings on S-VHS tape, and conversely, conventional VHS VCRs can record on S-VHS videotape" is a bit wordy and confusing as to its exact meaning. —The preceding unsigned comment was added by 68.153.109.3 ( talk) 20:07, 13 April 2007 (UTC).
JVC, Matsushita(Panasonic), and at least one other company made combo decks that had both an S-VHS transport and a MiniDV transport. Many of them also included a Firewire port for connection to a computer. What I've never been able to find out is whether or not they provided computer control of the the S-VHS transport or direct digitizing from it, or if to digitize from VHS one had to first copy to a MiniDV tape. —Preceding unsigned comment added by 208.100.251.47 ( talk) 10:48, 5 September 2007 (UTC)
SVHS is the follow-up of the video recording VHS, a video-recording standard, the old competitor of BETAMAX(SONY) and of VIDEO2000(PHILIPS). I am a PHILIPS man and in those days the competitors trick was to use a new way of transferring the video from the recorder to the TV. Instead of offering the usual composite signal of both Colour and Video Base band Signals: CVBS, where both signals: Colour and Black and White were mixed together, they send both signals separated to the TV. This excluded the necessity of using a signal-separation filter in the TV, thereby decreasing cross-interferences between both signals and.. improving Bandwidth and off course...... improving the definition of picture details! Because of that, PHILIPS and SONY just called the same idea: Y/C-signal-transfer. Y for video black/white and C for Color. I think the S originally stood for 'super', but the word 'separate' is actually better, because of the nature of the video-connection. So SVHS is correctly replaced by S-Video, forgetting the recording history. —Preceding unsigned comment added by 77.248.104.2 ( talk) 20:40, 9 April 2009 (UTC)
Editor Hinata removed the "needs citations" parameter from the "multiple issues" template, saying that the article does "site[sic] references". And has now done so twice.
WP policy requires that inline citations (and it's Citations, by the way, not Sitations) be present for "any material challenged or likely to be challenged, and for all quotations" (see WP:CITE, WP:V), and that citations are strongly recommended for everything else: "All material in Wikipedia articles must be attributable to a reliable published source to show that it is not original research".
The policy does also state that "in practice not everything need actually be attributed", but that does not mean that two inline citations are sufficient for an article of about 20 paragraphs. Ideally it means a citation for every statement or claim of fact.
And by the way... the two citations that are present here do not even directly apply to the article topic! One is used to justify a statement regarding poor chroma resolution of other video tape formats, and the other for the resolution of HDV!
Sorry but the notion that this article has enough references or inline citations is completely unsustainable. I did change the parameter from "unreferenced" ("it does not cite any references or sources") to "citations missing" ("It is missing citations or footnotes"), as that is a better fit. Jeh ( talk) 23:17, 21 September 2010 (UTC)
this article is confusing. what are "-lines" that it keeps referring to? IWannaPeterPumpkinEaterPeterParker ( talk) 21:09, 15 January 2012 (UTC)
These are extremely subjective, because the Kell Factor and EIA chart are very subjective results, as they rely solely on what different human eyes perceive, as well as how the different equipment is manufactured and processes the information. There is no scientific evidence that S-VHS is 400 lines, because it might appear that way to someone in their sixties, but for a twenty-year old they could, quite possible and depending on their equipment be able to make out up to 950 lines. What is scientifically known are the frequencies that the video is recorded at. S-VHS for instance records and plays back it's luminance between 5.4 and 7.0 MHz, depending on record speed and type of tape used, while its chroma is always recorded at 629kHz, but is up converted to the NTSC and PAL standards on playback. Compare this to Super Betamax that records between 4.4 and 5.6MHz with chroma stored at 688 kHz. Thus the comparisons on all the pages related to video recording should not be here, because they provide information that is not scientific and are very subjective conclusions that are misleading. 24.156.246.33 ( talk) 15:40, 19 August 2013 (UTC)
Is S-VHS Can Be Recorded In The VHS VCR In Standard VHS Quality — Preceding unsigned comment added by 186.93.24.96 ( talk) 00:07, 19 July 2016 (UTC)
I Owned A Samsung VCR But It Can Record S-VHS Tapes? — Preceding unsigned comment added by 186.93.24.96 ( talk) 01:59, 20 July 2016 (UTC)
S-VHS had around 400 tv scanlines of resolution, while NTSC had 480 active and 525 total scan lines. 330 scan lines for NTSC is wrong. Rockclaw1030 ( talk) 14:35, 25 May 2018 (UTC)
OK, one big confusion is that most often, but not always, lines means line pairs, especially in the analog case (horizontal in TV signals). In the discrete (raster) case, lines often means lines. For video signals, there are many ways to lose bandwidth, filtering being a favorite. In the case of video tape, with an FM luminance channel, it is even worse. The bandwidth of an FM signal is a complicated function of the bandwidth of the modulation, in theory going to infinity. FM is needed for luminance, which goes down close to 0Hz (close enough) and up to some MHz. The limitations of lower quality tape are hard to quantify. There is the capture effect for FM demodulation (though that page does a poor job of explaining it). One result of the capture effect is that the S/N after demodulation is much higher than before. Gah4 ( talk) 23:32, 25 May 2018 (UTC)
Some day someone with too much time on their hands may want to substantiate the references to S-VHS tape in
1) Blue Thunder when Lymangood learns of the tape storage in the Blue Thunder helicopter and knows of a similar system from his time on an aircraft carrier. 2) Red Storm Rising by Tom Clancy where it is used in a recording system mounted on F-14 Tomcats who are surreptitiously trailing a flight of bombers to see where they are headed. Both of which refer to or call back to uses by the U.S. Navy. ...and place them in a Popular References section. This assumes it's worth the effort which I am not at all sure that it is. — Preceding unsigned comment added by 50.34.131.98 ( talk) 23:37, 4 April 2020 (UTC)
The article often mentions the 0.4MHz limit of the chroma signal, and how much worse that is than broadcast. With I-Q modulation, and not well described in NTSC, I has 1.2MHz and Q has 0.5MHz limit. But NTSC was designed to make it easy to decode along the blue and red axes, with only 0.5MHz resolution, and just about all TVs made do that. (There are a few exceptions.) So, 0.5MHz is more than 0.4MHz, but not a lot more, and I suspect one would have to look pretty carefully to see the difference. NTSC did the actual studies to find which color differences people can see with more resolution, and came up with the I-Q axes to match. As well as I know, neither PAL nor SECAM followed that. Gah4 ( talk) 22:22, 16 February 2022 (UTC)
In the section discussing S-VHS vs. ED-Beta, there is this sentence: "In PAL markets, depth multiplexed audio was used for both formats." Did PAL ED-Beta exist? 86.142.94.246 ( talk) 09:06, 17 September 2023 (UTC)