print to tape quality

bruceo2 wrote on 5/12/2001, 1:28 AM

I almost have everything operating well in VV I have the
latest DX8 as well as the latest version if VV with P3 800
400mb ram and 40gb 7200 drive everything seems fine except
when I print to tape. some clips look perfect but any
sudden motion has a linear jagged blur only on the object
in motion. I am using the studio DV card with the MS dv
codec installed the Pinnacle codecs are not in the system
(removed the dreaded mirodv codec) the motion artifacts are
in the avi so the tape reflects what was encoded to the
avi. Why is this happening if the print to tape reflects
what shows on the final avi render on the computer then
what elements would cause some motion to cause these ugly
motion problems? I was considering replacing the studio
card with the ads pyro but I dont see how it would make a
difference?? Help me SF! :-)

Comments

Rockaway17 wrote on 5/12/2001, 7:50 AM

I've had that problem to. Have you tried rendering in
Progressive Scan? That fixed the problem for me.

bruceo2 wrote on 5/12/2001, 10:19 AM

Dv is supposed to be lossless so I cant figure why it would
cause poor motion rendering. the source tape is flawless
and the capture as well but once the editied file is
rendered the quality is noticeably decreased. Better after
removing the miro codec and installing DX8 and confirming
that DV was the codec used. What is causing this loss in
the final output? I have several projects ready to go but
this annoying problem.

If it would truly produce lossless final video and SF fixed
the 20 min time limit (which even cheap editing programs
like the be the killer app. It is a much more efficient to edit in
VV than any other program. Premiere is horrible. the only
thing good about premiere is the support for 3rd party plug
ins and such.

db wrote on 5/12/2001, 11:15 AM

i have seen this in the past on my system if
1) i have the AVI files on drive X and i render to drive X
2) if i have AVI files on drive X and i render to drive C (
that has OS and virtual memory -swap file)
3) if you have AVI files on drive a master/slave and you
render to a master /slave on same channel
4) you have AVI files on a partition and you render to
another partition of same drive

my system is NOW set up so i do NOT have any drive as a
slave and i do NOT render to any drive that has the AVI
files on it ...
i have a 80 gig on 2nd IDE channel as MASTER (D)and moved
CD-rom to slave ( E)... i then added a ATA 100 PCI card and
added a 80 gig as master on each channel (F & G) .. i added
80 gig firewire drives ( M & O) .... i store AVI files on
F,G, M ...additiional audio and pre render on O... render
to drive D ....

SonyEPM wrote on 5/14/2001, 8:33 AM

You could try turning on resampling for the events with
speed changes only (no need to resample the entire project).
You could also try selectively set problem events to
progressive, as has been suggested earlier.

Also, DV allows for perfect copies of one DV file to
another, but if you do anything at all to the video (tiles,
fx, frame rate changes, transitions etc), recompression has
to occur. Same is true with any other digital format