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Video: Какую систему редактирования построить?


Вопрос звучит так. Я оставлю написание в исходном виде:

Сhto optimalno dlia oborudovania rabochego mesta dla videomontaja fil'mov s VHS kachestvom? Digital camera + PC ili AVmaster-like-equipped PC only.. And what are requirements for PC (CPU, RAM, ets.)

Optimizaciya po otnosheniyu CENA / KACHESTVO..

Тяжело это читать, а писать-то каково было? Тем более на смеси языков…

Ответ был дан по английски, я его немного подправлю по цифрам, перевод будет позже.

Is a source of your video a VHS or SVHS camera?

There is a big difference in quality between VHS and SVHS, and especially with digital video.

You know that a generation loss while copying VHS to VHS is very noticeable. You can not escape it with digital processing.

If you have S-VHS camera, use S-VHS connections too.

For VHS camera, it is better to digitize directly from its realtime signal, although it may not be possible.

OK, let us count.

You can use any PC computer with 128 MB RAM, PII - 350 of faster processor. The faster- the better, Celeron working at 450 MHz being the best cost -effective solution.

You need a lot of disk space - from 30 to 60 GB, depending on what quality you need. The most cost-effective solution is to buy 1-4 UDMA hard drives specifically for AVI capture. Buy Promise Technology FastTrak IDE RAID controller. It is not available in Russia, but you can buy it via the Internet. The cost is only $100. You can connect several hard drives to it and configure them as one big drive with multiplied transfer rate and capacity. The controller works as an additional PCI card, leaving built-in motherboard IDE controllers free. My opinion is to use cheap high capacity drives like Fujitsu 10-17 G. They are fast enouhg and cool (in temperature). I have two in my home computer and can capture not less than 9 MB/sec on their full capacity, continuously. Two drives connected via RAID controller give you 20-35 GB space with very fast performance. The cost of each is well below $170. Be sure not to use AVI capture drive as system drive.




OS. Most capture cards work with Windows 9.x. If you want to go to NT, which is more reliable, you are limited by MIRO DC 30+, DC50+, which are more expensive. And, NT may have problems with IDE drives performance. You have to enable DMA mode by editing the registry. SCSI solutions are very expensive.

Actually, the best results can be obtained with digital cameras. Sony will began selling new digital 8 format cameras, costing about $800 and working with standard Hi8 cassettes, recording in digital video DV format. The cost is lower than for miniDV, but it is still digital video from the very beginning. You will need IEEE1394 card, costing $500 to make fully digital broadcast quality studio.

The best capture card for analog signals is Miro DC 30. It can capture with very high data rate, play from Adobe Premiere timeline, has no explicit limitation on avi length. Matrox RR-G card is limited by 3 M/sec compared with 7 M/sec for Miro, but also can capture and play long files (file sets, to be accurate). The cost is about $250 for Marvel combo card, instead of $900 for Miro. Matrox card can play several ready files from Ulead Mediastudio Pro 5.x timeline, but not from Premiere. If you use Ulead for video editing, you have the same features as Miro has with Premiere. I do not like MSPRO, so I have to render movie in parts with Premiere, import them to MSPRO and output to tape from its timeline. But, I need at least 1.5 times more disk space for that.

There are many other solutions, but I do not know how they work.

So, your expences are :

$1000 for very common PC with one system disk.

$760 for capture disk array of 40 GB, or just $160 for one 17 G disk.

$250 for matrox card or $900 for Miro or $500 for IEEE1394 card + $800 for digital 8 camera.

Minimum is $1400, but it will be necessary to add there an SVHS deck to store the master copies of your production on SVHS tape for later copying to VHS. The cost is about $1000, total $2400. Minimal computer hardware cost is $1400 (one 17 G drive only), and this is the difference with the best solution - you can start with less money and then upgrade to full capabilities. Maximum PC hardware cost comes to over $2000 for 65 GB disk array. Note that this huge hard drive still can fit only 5 hours of video in the best MJPEG compression scheme of Matrox card.



The best solution is Digital 8 camera + IEEE1394 card. You record your video in digital form and output it to the camcorder in digital format also. Store the digital cassettes as master copies for VHS copying. You always have the quality of the original recording, which is also much better than SVHS . The cost of solution is $1760 + 800 + 500 = $3000, or with disks savings (you can reduce disk space requirements in this case and save up to $600 on disks - you already have digital storage inside the source camera) , $2400 only! Note, that 3 hours of DV format take 42 GB of hard drive space, so with the most expensive option you are able to export your video from the herd drive in one pass.

The last option is to use MIRO. The cost seems to be $600 more, and you have to buy several disks from the beginning, and SVHS deck in the future. The full functional studio will be more than $3600 in cost and still limited to analog video quality.

I recommend to start with either:

a) Matrox Marvel + PC + 10 G drive = $1350, entry level workspace with limited capabilities. Add here the ~$500 cost of (Hi8) camcorder to compare with option b.

b) Or with PC+IEEE1394 card + digital 8 camera + 10 G disk = $2400, but you have new camera and all digital equipment.

Прочитав это собственное послание, я остался недоволен собственными оценками и решил дополнить его, с учетом некоторых новых находок. См. другие разделы.


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