Want to capture VHS tapes to Hard drive: what equipment to buy?
Hello all, I look forward to learning all I can on this forum, super informative!
I have been reading threads, and am just not sure I understand exactly what I need to convert dozens of tapes to store as files on my hard drive (to potentially be burned to disc at a later date) 1. First off, I have a powerful enough computer with a quad core cpu, enough ram and storage to do most tasks. I have about 4TB of hard drive, but i dont want to use a file format that takes up a ton of space, unless, well, I have to. I want a file that is as good of quality as the tape it came from "to the naked eye". 2. I have a sony VCR. it is a 4 head with digital tracking, but nothing special. SVL-760HF. I can buy a JVC HR-S3800U locally for $30 if that is worth it over the sony. 3. I need to pick up a capture device. I see praise over the ATI all in wonder 600 usb stick, but that uses coax. is coax good enough for this project? I figured on getting a hauppauge HVR-1800 to use s-video capture, but there doesn't seem to be much talk about it. If s-video is worth it quality wise over coax, what is a good card? My motherboard will take a pci card, or pci express x1, x4, x8, x16 card. I also have USB ports. 4. I had never heard of a time base corrector before today. They seem to be the most expensive part of this project. Would it be worth it to pick one up? 5. Finally, if using virtualdub, what file format should I capture to, with all the information I have given? (wanting good quality, potential to be burned to DVD) thanks for reading! I'm trying to make sense of all the info on this forum. most of it is all new to me. oh, one last thing, assuming this all goes well, what is a good way to store the vhs "masters" to prevent degradation of the over time? |
About how many tapes - "dozens" is a bit vague?
Are these tapes home videos, off-air/cable recordings, pre-recorded tapes, SP/LP/SLP speed, VHS or S-VHS? Do you plan to do any image restoration (e.g., clean up of colors, brightness, VHS artifacts)? How much time to you have to devote to the project? What is your budget to buy stuff you do not already have? What is your ultimate delivery format? DVD? uTube, or or say, standard definition-class files on a PC. The easy way for a moderate number of tapes is to hire it out to a reputable service; arguably the best way if you are not technically inclined and don't want to fight a learning curve or take this on as a new hobby. - In general, a TBC is almost always necessary to obtain stable video. - A S-VHS VCR is strongly recommended for its s-video output, and not all models are worth getting (see separate threads on this). Old, used VCRs may require servicing and in some cases component replacement. - COAX is a type of cable, and is generally used for both audio and video signals (component, s-video and composite). Composite uses one cable (often with yellow connector), s-video two cables built in to one, usually with a 4-pin mini-DIN connector, and component typically has three cables (RBG) in one sheath. For VHS s-video is generally sufficient. |
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image restoration if possible would be great. time isn't much of an issue, this is something for me to do in my spare time. ultimate delivery format is most likely DVD, however, I additionally want a hard drive backup, so they will be permanently stored on the hard drive once they get there in whatever format decided on. I am techincally inclined and do want to do this personally. My budget hasn't been determined yet, however, somewhere in the neighborhood of $300 at the top end for tuner, TBC, and vcr. |
Tuner? Mm. I think you mean capture device. A decent outboard frame-level TBC starts at around $200. You can also use a legacy DVD recorder from Panasonic or Toshiba (certain models) as a tbc pass-thru, which offers both line-level and frame-level tbc's -- not as powerful as the "real thing", but still pretty effective. At least one can afford it. And, yes, you need both types of tbc. See below.
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"Dozens of tapes" captured as high quality digital video would very quickly fill much of your 4TB drives. You could do it as lossy compressed video, the quality depending on several factors including bitrate. Experienced members here usually don't recommend lossy digital capture if you intend to do any corrective restoration work or fancy edits. For the best quality you'd capture to losslessly compressed YUY2 AVI using lossles huffyuv, Lagarith, or even UT-codec compression. Lossy compressors would be MPEG2 (DVD), DV (obsolete, and Pc-only playback. No TV play, and lower quality than lossless AVI), or h264 (very difficult to edit without damage). Lossy compressed video of these types are designed as what's called "final delivery" formats -- that is, not designed for editing or restoration. DV and other lossy formats can be "edited" safely (i.e., simple cut-and-join with smart-rendering editors). But denoising, transitions, color work, title overlays, etc., involve lossy re-encoding, more quality loss, and more compression noise. Some file sizes you can expect: Lossless compressed YUY2 AVI, highest quality: 30 GB/hour Lossy DV, good but lower quality, visible compression artifacts, PC-only play: 20 GB/hr High bitrate MPEG2, good, but with some analog-source artifacts: 4GB/hour Middle bitrate MPEG2, fair quality, more analog-source artifacts: 2GB/hour Low bitrate MPEG2, fair to very poor quality, plenty of artifacts: 0.75 to 0.5GB/hour Quote:
If your naked eyes are not very discriminating you can ignore some of that. But many folks who watch their most valued tapes aren't pleased with it. It's up to you. A few problems can be prevented with the correct type of tbc: - a line-level tbc corrects line timing errors within frames, targets wiggling and bent lines and boders, jitter, and sometimes reduces chroma bleed, etc. - a frame tbc corrects the overall frame to frame timing signal and prevents dropped frames and bad audio sync. If any of your tapes are copy-protected, a frame tbc is essential. A line tbc has no effect on copy protection. A frame tbc has no effect on in-frame scanline sync. As dpalomaki mentioned, what you do and what you get depends on your expectations. Many are satisfied with direct-to-MPEG capture and don't plan on any restoration or improvements. Just as many folks will see lots of problems or will decide that they want to make things look a little (or a lot) better. Your SONY player is low-budget with only composite output, which would cause several problems that an s-video output would likely avoid. The JVC HR-S3800 has no line tbc or strong tracking ability, but it has s-video output. It's OK for SP 2-hour tapes but is a poor choice for 6-hour or 4-hour recordings. Quote:
If by coax you mean typical RF cable, no, it isn't good enough. But as dpalomaki explained, composite, s-video, RGB component, and audio cables are all coax designs. Quote:
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The primary tools for restoration, cleanup, color correction, and other repairs are Avisynth and VirtualDub. Both are extensive. Avisynth can do things VirtualDub never heard of, and vice versa. Both tools have their place. Quote:
Home-made tapes are a world of their own. They're fraught with problems. If you mean home-made with consumer cameras, some of the more prized segments you'll find are somehow really tough to clean up. One major problem with capturing home-made consumer camera tapes to lossy formats: camera movement, wobbling, fast pans and zooms -- these take a huge toll on bitrates. Captured to lossy formats, you'll see more compression artifacts than you thought possible. You don't have to be a video expert to notice it. I think you can see that you have more than none path open to you. Each has differing elements of cost, time and effort, and each offers widely differing quality levels. Your move. |
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Coaxial in this case means a cable that has a center conductor (hot lead) that is surrounded by a shield (often foil and braid) that provides the ground return. This design reduces pick up of stray electrical noise, and stray emission from the signal passing though the cable. If the final delivery format (for home viewing ) is DVD, you can store about 2 hours of SP speed VHS quality video on a a single layer DVD (4.7 GB), or perhaps 1.5 hours of broadcast quality video (with compressed audio). This is in MPEG2 format per the DVD specification. However, keep in mind that home video, especially legacy VHS, also tends to have a lot of noise in it, and that really eats up bits making quality compression difficult. - Use a good, preferably calibrated video monitor to evaluate you signal and settings to stay within NTSC specifications. Note that computer monitors and graphics cards generally do a poor job displaying analog video - they are designed around computer graphics. - Capture as lossless as is practicable to minimize decompression/recompression artifacts. - Ensure the signal is stable and within spec ( line and frame TBC) - Use an analog processing amplifier (proc amp) after the TBC to make basic brightness, contrast, color saturation, and hue corrections (staying within NTSC spec) prior to capture. - Make recompression to the distribution format your last step. - Save your cleaned up uncompressed captures on what ever archive media you choose. Are you sure the Sony has a s-video output? The manual for the SVL-760HF does not show one? Only RCA jacks for stereo audio and composite video (often colored red, white, and yellow). |
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would an AVT8710 take the place of both the processing amplifier AND the TBC? I would still need a line TBC, correct? oh and I was wrong, no s-video here. I know I've seen a VCR with s-video somewhere, perhaps my dad's basement? :P p.s. thanks for the cabling info. I do know the differences, I just always considered yellow (composite) with red and white as RCA cables, and considered coax(RF) as RG6 in most applications that I run into (line in to cable box etc). |
Thanx to dpalomaki for excellent info. Shorter than mine, too !
Pardon any typos found below, folks. It's getting late here.... Quote:
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Final encoding to MPEG2/DVD offers the most universally playable format. Works on TVs, PCs, DVD players, BluRay players, and other stuff. There's no such thing as "light correction" that doesn't require re-encoding. The lossless capture is kept as-is, pieces are pulled off and cleaned up as needed, reworked and saved as lossless working files, then assembled into whatever you want for a final video, and encoded and authored. Once you have your final output, you don't have to save intermediate working files. But you can save settings or other notes in case you have to rework something (knock wood, LOL!). As you get involved in post-processing, you'll see that it often involves multiple steps or tests. Lossless working files can be compressed, decompressed, and recompressed with hufffyuv or similar compressors many times with no degradation (which is what "lossless" means). You don't archive these. Once you have your final output, you can archive desired originals to a smaller encoded file if you want, but give it enough bitrate to be useable later if needed. Quote:
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You can get both tbc types in one by using older Panasonic or Toshiba DVD recorders as pass-thru tbc devices. That is, you don't record to them. You "play through" them into a capture device. Mind you, these tbc's are not as hefty as built-in tbc's like a JVC-9800 or Panasonic AG-1980. But they're visibly effective and far better than nothing. Only a narrow range of DVDR's can be used this way. Newer models are useless for pass thru. The favorites are Panasonic ES10 and ES15, or Toshiba RD-2 thru 5 and RD-XS series. These are circa 2002-2005. All of them have y/c comb filters to help clean dot crawl with composite input and have good internal composite->sVideo conversion for output. Sometimes you find these selling cheap at auction because their optical drives are dead -- but you don't need that drive for pass-thru. There was a time when you could get these babies in full working order for less than $50, sometimes $25. But users caught on to their tbc's, so prices rose. You'll find long discussions, debates, and chaos on this issue going back to 2010, plus more charts and tests than you can stand for a lifetime, in this thread: http://forum.videohelp.com/threads/3...hat-do-you-use. Quote:
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For analog capture there are better cards around, if you have $1000 or so plus a few hundred $$$ extra for support gear. The fact that you could get beautiful VHS captures from a $300 ATI card (2004 prices) that gave stiff competition to mega-buck pro cards accounted for a lot of ATI sales. Quote:
Good luck. See you folks tomorrow A.M. |
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RCA (aka phono plug/jack) is the common audio connector found on most consumer gear. It is also used for composite and component video on consumer gear. It is low cost and easy to use but more prone to failures. Developed as a cheap connector for use on phonographs by guess who. BNC is a bayonet (locking) type of connector used on industrial and professional gear for video signals and low power RF signals. Much more expensive and reliable. 4-pin Mini-DIN (aka s-video connector) is the most common connector used for s-video. It is modest cost and not especially robust. Not uncommon for the tiny pins to bend or break if not used with care. Type-F, used for cable TV connections and antenna terminals on TV sets and VCRs. A simple, low cost connector, but not very robust. XLR (or Cannon [not Canon]) is a locking connector commonly used in professional audio applications. Much more costly than RCA, and much more robust. It also supports balanced audio (important for noise immunity, especially in long cable runs). 3.5mm mini phone - used for mono and stereo audio, headphones, and a 4 conductor variant is used on some camcorders for stereo audio and composite video. Sometimes used for balanced audio on minaturized gear such as wireless microphone systems. 1/4" phone - used for audio, on headphones, guitar amps, comes in 2 and 3 conductor variants. The Three conductor are used for stereo or balanced mono. 2.5mm mini-phone used for LANC connection by Canon and Sony gear, and sometimes for low voltage power.. |
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