Help in breaking up long clips

strummsteel wrote on 2/13/2004, 4:47 PM
I cant seem to make dv scene detection to work, is there anyway to cut up long clips much like Editions scene extraction?

Also if i cant get the scene detection to work is it because the footage was not taken with time of day set? If i set my deck, will it work? or does it need the setting upon filming?

Tnx for the reply in advance

Comments

Spot|DSE wrote on 2/13/2004, 4:51 PM
Scene detection can't work without the date/time set in your camera. Edition uses timecode, Ulead offers both timecode and Luma changes as scene detection.
strummsteel wrote on 2/13/2004, 5:20 PM
Tnx for the reply

Its set on my camera/deck, why doesnt it work, does the original footage camera need to be set? I dont have a say on the tapes that are sent by the cllient. Does it mean that during filming the camera wasnt set? is there any workaround?

Sorry for the multiple questions.
johnmeyer wrote on 2/13/2004, 5:56 PM
In Vegas Capture app:

Options -> Preferences -> Capture tab -> Enable DV scene detection.

This must be checked.
Former user wrote on 2/13/2004, 5:58 PM
Vegas Video will only detect by DATE/TIME changes, there is no scene detect by content.

Dave T2
strummsteel wrote on 2/13/2004, 7:02 PM
hmmm, tnx for the replies, i got it configured right my question is does the time and date need to be set during filming? Im asking this because i dont take my own shots, i just edit them, id like to know this becuase ill tell my camera man to make sure the time and date is set.
PeterWright wrote on 2/13/2004, 7:06 PM
Yes - it has to be set at shooting time, otherwise the info isn't on the tape.

I've heard that SceneAnalyser (is that the right name?) can do Scene detection based on optical content - maybe someone who's used it can confirm...
strummsteel wrote on 2/14/2004, 6:56 PM
I just bought it, WOW it works, it has greatly reduced my editing time in half. Buy it!
johnmeyer wrote on 2/14/2004, 7:19 PM
Scenalyzer is great, and you definitely want to use it instead of the capture application that comes wtih Vegas. However, whether you set your clock or not, there should be timecode on your DV tape, and any interruption in that timecode should casue a new scene to be detected. If that isn't happening, then you've got something configured wrong.

The reason I mention this is that, despite how good Scenalyzer is, the optical scene detection is far from perfect; by contrast, the DV scene detection will get each and every scene perfectly every time.
strummsteel wrote on 2/15/2004, 6:53 AM
I agree, wid your comments, if only i cud also output OMFs from scenalyzer and Vegas, I use both Avid Xpress Pro and Vegas and It would be great if i cud get them to use both files OMF files are the usual file i use at work. Any ideas on how to efficiently transfer AVIs to OMFs?
GaryKleiner wrote on 2/15/2004, 8:52 AM
>However, whether you set your clock or not, there should be timecode on your DV tape, and any interruption in that timecode should casue a new scene to be detected. If that isn't happening, then you've got something configured wrong. <

John,
If you are referring to Vegas Capture, you are incorrect. As was stated, Vegas uses the date/time information on the tape, not the timecode.

Gary
rmack350 wrote on 2/15/2004, 8:16 PM
Time must be set on the camera. Vidcap does not use timecode for scene detection. It uses time of day as recorded on the tape. Strummsteel should advise people to set the time on their cameras.

Scenalyzer can also use time of day as well as optical detection.

For OMF support, search the forums. There are third party tools out there that may do the job.

Rob Mack
jetdv wrote on 2/16/2004, 6:27 AM
Scenalyzer is great, and you definitely want to use it instead of the capture application that comes wtih Vegas. However, whether you set your clock or not, there should be timecode on your DV tape, and any interruption in that timecode should casue a new scene to be detected.

Not true. The timecode should be continuous no matter how many times you stop and start the camera. Date/Time jumps triggers scene changes.
ibliss wrote on 2/16/2004, 7:10 AM
The timecode should be continous, however if you are recording to a new tape, stop recording, fastforward and then start recording again this will screw up your time code (i believe).
jetdv wrote on 2/16/2004, 7:33 AM
The timecode should be continous, however if you are recording to a new tape, stop recording, fastforward and then start recording again this will screw up your time code (i believe).

Yes it will. It will restart at zero.
johnmeyer wrote on 2/16/2004, 9:13 AM
Sorry, I was sloppy when I posted. Date/Time is used for scene detection. Timecode is another animal. However, while we're on the subject of timecode and capture, one other advantage of Scenalyzer is that it lets you do batch capture, even when there is an interruption in the timecode.
FuTz wrote on 2/16/2004, 12:01 PM
strummsteel, you might want to check this link just for the sake of it... maybe it could help in your actual situation:

http://mediasoftware.sonypictures.com/forums/ShowMessage.asp?ForumID=4&MessageID=187313