Re: Problem with Canopus ADVC100 capture
- From: Tony <trusso11783@xxxxxxxxx>
- Date: Fri, 05 Sep 2008 17:47:46 -0400
On Wed, 13 Aug 2008 14:26:35 GMT, "Smarty" <nobody@xxxxxxxxxx> wrote:
"Richard Crowley" <rcrowley@xxxxxxxxx> wrote in message
news:sZCdnSAIbslKoz_VnZ2dnUVZ_hWdnZ2d@xxxxxxxxxxxxxx
"Tony" wrote ...
For some reason, my Canopus ADVC100 drops a lot of frames
when I capture analog video to my pc.
Unless your ADVC-100 is broken, this is so unlikely that I would
dismiss it as a real-world possibility and focus my attention on
other possible causes of your symptoms.
The video plays fine in the vcr
That.s good.
and looks fine while capturing
What does that mean? "looks fine" WHERE?
On a TV screen connected to the camcorder?
In a window on your computer screen?
I take that back. It freezes on the computer screen. Then it picks up again.
Speed Edit. Also Win DV
You didn't mention:
What software are you using to capture?
XP SP2 ( with tons of services disabled to eliminate overhead.What operating system? Version? SP?
DV AVIWhat file format you are saving? AVI?
It worked sporadically since I have used the ADVC100Whether this EVER worked?
Always was a problemOr if this is a new development?
Speed Edit. WMP. Anything. Dropped frames are dropped frames.
However, when I play back, there are
missing sections of video and plenty of dropped frames.
You didn't mention:
What software are you using to play back?
Anywhere from 5 minutes to 90 minutesHow long your tests are?
How many are "plenty"?
Why? It isnt my system (Quad Core, 4GB Ram, SATA striped drives, etc.
Yes, Nice system.
I agree that it seems unlikely that your symptoms are caused
by your computer HARDWARE.
OTOH, I'd bet a nice dinner that the problems are caused
by your computer configuration, software, etc.
Nope. I have my own business that designs and builds workstations for nonlinear editing. Never had a
problem with anyone's computer giving them problems and my firewire video (mini dv and D8) are
always perfect. The only problems are capturing analog video through the ADVC-100.
What do you want to know? Speed Edit is a great editing program. Runs flawlessly
You didn't mention:
Anything at all about the software?
Nothing.What other apps do you have runing at the time?
Nope. I even disable the dhcp client by using static ip addresses. No wireless on this machine.Networking? (particually wireless networking)
Always was intermittantIs this a new problem or did it ever work before?
Also, fiewire out of any digital camcorder is perfect.
Not sure exactly what that means, or how it relates to your
resenting symptoms? Are you saying that if you capture
by playing back a tape on your camcorder, it captures OK?
Yes
What happens if you put the analog video into your cam-
corder, used as a digitizing "pass-through" device?
Didnt try that yet.
Something is happening during the A-D conversion.
You have not presented enough information to convince me
that you can make that statement conclusively.
The only way around it is to capture the uncompressed video to
my Newtek T4 system through the analog mixer. While this works,
2 hours of video uses 130GB of space.
Does anyone else have this problem with the Canopus?
I don't recall ever seeing a credible complaint about a Canopus
box (including yours, IMHO). It seems likely that Canopus can
ship a faulty unit from time to time, and that may be what your
problem is. But to categorically state that any of the Canopus
boxes is capable of the problems you cite is highly unlikely.
Note that the Canopus boxes use the same chips for D/A and
A/D that are used in many camcorders (perhaps including your
own.)
What do you, work for Canopus or something? Why cant it be a Canopus problem? I can tell you this.
Nearly every single analog video I played through this unit has dropped a lot of frames. This past
weekend, I can say that it captured an analog SVHS wedding tape from 1988 without dropped frames.
So, the problem may be that certain tapes can give it a problem. BUT, those same tapes that have
drop out through the canopus play fine when playing on a vcr and watching on a tv. I know that
because I checked a section of the dropped frames by seeing if it was that way on the tape and it
plays fine from vcr to monitor. Something causes it to drop frames through the Canopus while using
the same vcr and cables.
I agree with Richard since I have never seen a Canopus problem in capture
from their ADVC products which ultimately arose from a fault in the
hardware. I've been interacting in these newwsgroups since long before
Canopus brought out any of these products. It is indeed possibly but not at
all likely.
1. You may have a copy-protected analog tape which your VCR properly plays
yet the Canopus rejects due to improperly formed sync pulses, blanking
intervals, or color burst distortions deliberately added to prevent analog
capture.
All tapes are home videos that have no protection on them. I produced 90% of them.
2. You may have a background program which demands a high priority execution
during the capture, forcing the Canopus to delay and then drop some frames.
None
3. You may have a bad cable connecting your Canopus, giving it a weak signal
which it can't reliably use for capture.
I have tons of cables and tried many with similar results.
.
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