Capture Problem

Beto_PR wrote on 3/17/2005, 12:07 AM
Hi all

i need help with capturing and scene detection, the problem is that Vegas dont want to detect scenes in from tape, i dont know if its the tape iam using now, Maxel DV tapes, i used to use TDK media and worked fine till they changed their label and now TDK wont record in my Canon in stereo, most clips are in mono and few in stereo, its in all new TDK media, so i changed to Maxell and now with Maxell some tapes from the same package(3Pack)
record fine but Vegas wont detect scenes while with the others(same pack)
it can detect scenes, i used an old Scenalyzer i used to use but i dont like the results from it because some scenes with flashes get splited and if joined u can see a jump in the video what do you guys recomend me to use
TIA for any response.

Comments

Liam_Vegas wrote on 3/17/2005, 12:22 AM
Vegas only detects scenes based upon timcode "jumps" in the DV video on the tape. You get a time-code "jump" each time you hit record/stop on the camera.

If you really do have multiple clips on the tape (you pressed record/stop between "scenes") and Vegas is NOT splitting the clips then there is a reason why this happens. Invariably it is because the time has NOT been set on the camera. In this case the camera does not record timecode on the tape and then Vegas has nothing to work from. Solution (for future captures) is that you must set the time on the camera.

If what you have is a single contiguos recording on that tape then Vegas will have no way to split them into scense and you must then rely upon an optical scene detector like that in Scenalyzer... with the "risks" you mentioned already.
Grazie wrote on 3/17/2005, 12:26 AM
opk, I guess that as you are detecting scenes with SceneAly then you're good to go with Vegas.

Now, 2 types of scene detects:

1/- Optical .. Scenealy looks for this as well as . .

2/- Timecode Change . .this is what Vegas does, and does it very well . . . but you willl need to activate this within your Vegas VidCap programme.


Scenealyser does optical - large changes IN the scene - and Vegas ONLY does Timcode changes . .meaning a diferent scene when you started and stopped your camera. If you did NOT start and stop your camera for each scene you will have one loooonnnggg scene! And as a result, under Vegas, now no "scenes" to detect. This is what you want Scenally for! Yes?

Grazie


Grazie wrote on 3/17/2005, 12:27 AM
Liam! Go to bed! . . I'm awake . . yah beat me! You on night shift here? :)

Grazie
Beto_PR wrote on 3/17/2005, 12:38 AM
Hi Thanks for a soon response

Yes the time coden in camera is setup right, and i used scenealizer v1 to do the capture but as i said the big flash scenes get splited also and if joined i can see a frame jump, also the tape has lot of scenes that are very short and some large wich by splitting in vegas takes me a lot of time to finish the job :/, but about the time code ill make sure it is right before i start recording so i think i'll have to use scenalyzer for this particular tapes and Vegas for the other and Thanks again guys.
Liam_Vegas wrote on 3/17/2005, 12:46 AM
Grazie!!

Er... what's "Night shift"? Does that mean you get to work at night and sleep during the day? I think I got the work at night part.. but the sleep during the day bit is what I am mssing!

I'm doing a trade-show video display for a client with a crazy schedule... and had version deliverables for the past few days.

I've really been pushing the Network Rendering setup - and finding EVERY bug there is. Even with the bugs the network rendering has SAVED MY A$$. My 8 minute project would take 8 hours to render - and on my four network rendering machines it does it in just over 2 hours.

One of these days I'll get around to doing a detailed write-up on the trials and tribulations of network rendering.
Beto_PR wrote on 3/17/2005, 12:57 AM
Liam..

i snetwork rendering that fast? is so is there somewhere that teaches you how to make the setup right?, because i made a test in this and didne worked it just kept givng me errors thanks for any help i would like to use my 3 other unused computer for the very long wedding jobs that takes almost 3 hours to render.
Liam_Vegas wrote on 3/17/2005, 1:06 AM
Setting up Network Rendering can be quite tricky... and the "gotchas" are a little weird as well. I will definitely do a write-up on this once my current project is over.

Net Rendering only really helps on projects with heavy use of FX. If you are mostly doing cuts-only editing it won't help you.

My current project is the first one I have had which really benefitted from the Net Rendering.
jetdv wrote on 3/17/2005, 8:59 AM
Scene detection is based on jumps in the Date/Time - no relation to timecode. Is the clock set in the camera?