Dropped frames + Answer to AVI files size change!

fuzzzzy wrote on 6/9/2002, 8:31 AM
Hi all,
Re my previous posts on "AVI file size change"..

I have found the reason this happened...when I rendered, back the time line "LINE" was not at the beginning of the clip but a certain distance in front i.e. if I render a region the exact same length of the clip the file is the same...
Just thought I'd let everybody know that replied to my posts...sorry for my ignorance.... :)

I captured a 80 min PAl DV video and had 113 dropped frames is this considered alot ?

Also there is a bad section of footage on my tape could this be the reason, is there a way to find out where the dropped frames occured?

fuzzzzy

Comments

deef wrote on 6/9/2002, 9:31 AM
Below are the 3.0b readme changes, the second item is the dropped frames fix.

-Improved support for DV media converters when the Enable DV device control check box on the General Preferences tab is cleared.
-Improved DV dropped frame count detection so that bad timecode will not incorrectly cause "phantom" dropped frames.
-A bug that caused DV 48 KHz audio to be detected as 32 KHz has been fixed.
fuzzzzy wrote on 6/9/2002, 5:35 PM
OK I tried with "Enable DV device control check box on the General Preferences"
Had the same number of dropped frames...atually one more i.e. 114 on a 80 min capture. The majority of dropped frames (112)happend at a point where I changed tapes in the camera (sony DCR TRV 330 E)

I would also like to know the following:-

Is there a quality loss if I render a edited clip and then re-edit it ?

Also on the preview some of the night shots are darker then the original, However when I view the edited printed tape, the night shots are the same as the original i.e. lighter.

Is there a setting whereby the preview shows the same brightness as original video?

fuzzzzy
taliesin wrote on 6/9/2002, 5:45 PM
Fuzzzzy, what you could do for overcoming the dropped frames, is copying your dv-tape via a firewire-connection (e.g. dv-camera to dv-recorder). This way there will be no quality loss but the timecode will be re-written. This often helps.

Marco
fuzzzzy wrote on 6/9/2002, 5:58 PM
Hi thanks,
But all the editing in my previous posts were via firewire card and DV PAL
taliesin wrote on 6/9/2002, 7:22 PM
Not sure what you mean. Maybe my words were misunderstandable.
I did not mean to make your editing from camera to dv-recoder.
I meant you could dub your tape before capturing the copy then into VV doing the editing in VV.

Marco
deef wrote on 6/12/2002, 4:09 PM
You should keep that enabled. I'm talking about the second item about preventing "phantom" dropped frames because of bad timecode.

You should ensure your tapes use continuous timecode, either by pre-"striping" the tapes or always recording over the end of the previous record.