JVC GR-HD1U High Def

soysaucesam wrote on 8/28/2003, 12:54 PM

Has anyone used Vegas in conjunction with the new JVC GR-HD1U high def camcorder? With the software build 4.0d Sonic Foundry said it supported HD MPEG-2 streams (which is what the JVC puts out) but I can't get everything to work together. Using JVC's capture utility I get .m2t files that Vegas doesn't recognise, and I can't get the Vegas Capture utility to recognise the camera as a valid DV device (since it really isn't streaming DV, it is streaming MPEG-2). Any hints?

Comments

filmy wrote on 8/28/2003, 3:47 PM

To the best of my understanding VV will not capture or PTT any HD material. You need a third party software to be able to do that. I suggest checking out the AVS forums for lots of information. Also another thread that might help you right here on the SoFo forums - http://sonicfoundry.com/forums/ShowMessage.asp?MessageID=195449&Page=0

soysaucesam wrote on 8/29/2003, 12:40 PM

Thanks filmy. I asked tech support about it and this is what they had to say:

"Thanks for writing. Vegas does not yet have true HD capture. It captures HD footage in DV format (29.97FPS) via Firewire, and then treats that footage as HD by inserting 2-3-3-2 pulldown. If you have a capture utility that can capture HD footage, Vegas can open and render the footage properly as long as it is a plain old MPEG file, i.e. no M2T, etc. You may be able to open the M2T file in Vegas by changing the extension, but you will lose the transport stream information as Vegas does not support transport streams. The HD support will be improved upon in the future. "

Hope that clears it up if anyone has questions in the future.

filmy wrote on 8/29/2003, 3:12 PM

Um..yeah. :) or you could have read what SoFo said in their posts in the other HD1U threads here as well. ;)

The AVS forum post in answer to my question, that I re-posted the link with the answer to for you, explained in detail how to use VV with either the D-VHS deck or the HD1U cameras. I thought that was what you were looking for.

Oh what the hell - in case people don't want to click a link here is the post from AVS in answer to my question. THis is not me talking now - this is another VV user.

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"I've successfully edited video from both the HM-DH30000 and the GY-HD1 using Vegas 4. Here is what you do:

1) Capture footage using either the HD Capture Utility that comes with the GY-HD1 or DVSTools. This will give you an MPEG2-TS file

2) Drag that file right into the Vegas 4.0 timeline. Edit as normal.

3) Render out as MPEG-2 at 720p or 1080i. Note that if you plan on going back to the GY-HD1, you should go with 720. This will give you an MPEG-2-PS.

Note, if you would like to produce AC3 audio, do the following. Render the video ONLY as described above. Render the audio as an AC3 file alone. By default Vegas want to do a stereo AC3 file. If you want 5.1 channel, just make the change in you project setting before rendering.

4) Now you either have a single MPEG-2-PS file or a video MPEG-2 file + an audio AC3 file. Use MPEGCarver Premium to crate an MPEG2-TS file from these.

5) Now use either DVSTools or the HD Capture Utility to transfer the video back to the HM-DH30000 or the GY-HD1.

Overall this works well. I hate the user-interface in Vegas, but it is tremedously fast when you throw a lot of memory at it. For one of my projects, we needed to edit 90 hours of finished multi-layers video in a short time. We ended up getting a Tyan Thunder GC-HE with 24 GB of RAM. We set up 20 GB on it as a RAM disk and the videos we needed to edit on it. This was for a non HD project ---- but last week, I ran a test on on it to see how well this set up works with Vegas and MPEG based HD footage. I was able to get 17 layers in real-time with chroma-keying on 16 of the layer. Note,"real-time" here just refers to the responsiveness of the system while in front of it editing ---- the resposiveness is realtime, but you still need to render at the end and jump through the Carver MPEG-2 --> TS hoop."
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RBartlett wrote on 8/29/2003, 3:37 PM

The .trp files captured by one of the other provided apps (apparently this is a subject of change for JVC) load fine when your force Vegas to see them in its or windows file explorer and post them up on the timeline.
I believe Vegas4 (possibly since 4b) supports MPEG-2-transport streams. .m2t should be the same, though again you may need to force the file selection criteria of Vegas4 to step outside the general file types.

Since when has a file extension been the last word in what is in the file..... well, since PCs.

You definitely will have to wait to be able to render for the JVC provided app, or Vegas4 to be able to print-to-tape. MPEG-2-TS is not yet an option in the MainConcept MPEG-2 encoder built into Vegas4. Transport streams aren't particularly complex animals with a single PID inside.

To summarise. I am surprised at the fact that you might have to change the file type to get Vegas to recognise the file. Try a little harder please.

If you have problems, see if you can get hold of the app that captures to .trp files. I've not got this camera myself but have successfully downloaded .trp files from this camera put on the web by the folks over at the HiDef forum at www.creativecow.net.

D-VHS (28Mbps), HDV and specifically the HD10 and HD1 cameras will have better output support from Vegas if you are prepared to watch this space. I'm waiting to see this support anyway.