Uncompressed video D1 - how to acquire

asafb wrote on 10/22/2002, 4:35 PM
How can I acquire in uncompressed D1? Do I buy a Betacam SP camcorder or what? I need some help.

Also, if I'm using Digital Betacam 4:2:2 I was told I can edit in Vegas. But what if I want to take it to a place where they have Sonic's SD2000 professional encoder which only accepts MOV (quicktime) files?

Last question, and very important, please if someone knows the answer >>> If I render a vegas project which has crossfades into one single avi file and choose uncompressed from the templates, does this really mean uncompressed, especially during all of those crossfades?

Comments

Tyler.Durden wrote on 10/22/2002, 5:59 PM
Hi Asa,

>>>How can I acquire in uncompressed D1? Do I buy a Betacam SP camcorder or what? I need some help.<<<

You might buy a Digisuite board, shoot betacam and rent a player to digitize through the Digisuite board.

>>>Also, if I'm using Digital Betacam 4:2:2 I was told I can edit in Vegas. But what if I want to take it to a place where they have Sonic's SD2000 professional encoder which only accepts MOV (quicktime) files?<<<

Vegas can render to uncompressed QT.


>>>>>Last question, and very important, please if someone knows the answer If I render a vegas project which has crossfades into one single avi file and choose uncompressed from the templates, does this really mean uncompressed, especially during all of those crossfades?<<<<

Yep. (Be prepared for large files.)


HTH, MPH
asafb wrote on 10/22/2002, 7:20 PM
Martyh: When Vegas renders uncompressed, it's basically saying "save this project into one big file," right?

How do I select uncompressed quicktime. what is the template?

thanks
asaf
Tyler.Durden wrote on 10/22/2002, 7:51 PM
Hi Asa,

When rendering uncompressed, it is not using any compression on the video data to reduce filesize, it will make files 5X larger than DV.

As for the QT template, I haven't used it but my guess is the default template, custom: Framesize: NTSC STANDARD (720x486), pixel ratio: 1.0, video format:ANIMATION, quality: 100%

Perhaps another user has firsthand experience on this.

HTH, MPH
asafb wrote on 10/22/2002, 8:07 PM
Hi Marty.

>> When rendering uncompressed, it is not using any compression on the video data to reduce filesize, it will make files 5X larger than DV.
** But when crossfades are involved, it has to compress right?
Thanks,
Asaf
Chienworks wrote on 10/22/2002, 8:41 PM
asafb: i think you're confusing output file compression with "recompression". Where you're picking up the idea that crossfades will be compressed probably comes from the fact that when rendering DV source to DV output, Vegas simply copies the video stream bit for bit without any processing unless there are things like titles, filters, effects, or crossfades. When these are encountered the rendering engine will decompress the DV frame to full RGB, process the effects, crossfade, filter, etc., then recompress this back to DV.

If you're outputting to uncompressed, then there is no need to compress crossfades. Everything is decompressed to full RGB and stays that way.
Tyler.Durden wrote on 10/22/2002, 8:48 PM
Hi Asa,

>>>>> But when crossfades are involved, it has to compress right?<<<<

You don't need to compress to do FX or transitions, you just need to process multiple images into one "composited" image.

Vegas renders in whatever compression (or not) you tell it to... if you want to see it through the 1394-card/TV it will "recompress" on the fly to DV so you can view it, but if you want to render to uncompressed AVI or QT, all rendered FX and transitions will be processed uncompressed.


HTH, MPH
kkolbo wrote on 10/23/2002, 12:26 PM
This thread has me completely confused. What are you referring to by uncompressed D1? D1 was a very popular digital tape format that was used for edit masters. The machines were to big to make aquisition decks (camera backs) from, but as an edit master they were great. D2 eventually had aquisition decks.

Buying a Beta SP camcorder would not assist you with getting old D1 material into Vegas. In fact Beta SP (analog) was not as good as a D1 so you would loose quality that way.

I understand that you can use Vegas with the Matrox hardware and CODEC to edit 4:2:2, but I do not have any experience there so I can not answer, but it was discussed here and SoFo did comment. Search the forum.

Chances are that a house that has Sonic's encoder also has a variety of tape decks and can digitize a tape of what ever format you birng them. You will probably not have to bring a file on disk. A 4:2:2 file of any length would have to carried on a hard drive to get it to them. If they want it on a hard drive, then Vegas can output to any CODEC that you have on your machine including QuickTime. Coordinate with the encode house for which codec that they want. Vegas is the most versitile of any video output system I have worked with that way.

K
Tyler.Durden wrote on 10/23/2002, 7:34 PM
"What are you referring to by uncompressed D1? "

Colloquially, ccir601 via SDI, methinks...

HTH, MPH