Phantom Dropped Frames

montage wrote on 7/20/2002, 7:51 AM

Hello, all
If this subject has already been covered, please forgive me-my 28.8K modem which has the audacity to call itself a 56K runs so slow that I shy away from doing a lot of searches.
Anyway...
Like a lot of you, I archive my finished projects on DV tape. I recently had to re-import a 9 minute finished project so I could adjust a volume level and re-render (BTW-Audio Envelopes in VF are VERY Helpful to reduce large dynamic ranges in songs)I imported it using VF-When I was finished Vidcap told me I had 36,000+ Dropped frames...
My math says that in a 9 minute video at appx 29 FPS, there are only 15,660 frames..
Am I doing fuzzy math or is Vidcap lying to me, and, why am I egtting this erroneous error message when the outcome seems to be fine?
The imported video looked fine and my re-rendered output, and subsequently, final project looked fine.
No problems this time, I'm hoping to head future problems off at the pass.

Comments

soundguy63 wrote on 7/21/2002, 5:35 PM

Others have also reported the occasional wildly varying totals of dropped frames with no apparent real problems.

montage wrote on 7/21/2002, 7:48 PM

Thanks soundguy63, I guess I'll just ignore it unless I see a problem.

Ted_H wrote on 7/23/2002, 9:43 AM

This commonly happens when capturing from analog devices. When using analog devices, you can disable the following preferences to improve performance:

On the "General" tab
-Enable DV Device Control

On the "Capture" tab
-Enable DV Scene Detection
-Enable Still Image Capture
-Minimum Clip Length

Ted

RWatts wrote on 7/23/2002, 11:50 AM

Yes, but it happened to me today capturing from a dv camera, no apparent frame loss, though
Reg

montage wrote on 7/24/2002, 1:11 PM

My situation is the same as Rwatts, I was capturing from my DV camera.
In essence What I was doing was capturing into VF what I had output to my DV camera via VF PTT.
But as with Rwatts, no apparent frame loss.
Strangely enough, the reason I was re-importing from my DV camera was that when I played the clip back from my camera into a VHS VCR, there was a gap in the audio, so I was going to bring the clip into VF and fix the audio, but when I got the clip into the computer, there was no gap.
Even with 36,000+ dropped frames.