Is this only externally jerky or also when viewed on the pc monitor? I happend to have search indexing in the background activated. This disruppted preview on a quite regular base. But vidcap output has been fine as well. I had a look at the performance monitor and saw the drops in performance. I am using WinXPhome.
Thomas

>What are you connecting the external monitor to?
OHCI 1394 Controller (Lucent chipset) connected to Panasonic NV-DS28EN digital camcorder with standard firewire (i-Link) 60 cm. cable. Camcorder has S-video output to Sony TV with S-video input.

>Is this only externally jerky or also when viewed on the pc monitor?
Only external jerky. The picture on the pc monitor is fine.

Mucho problemas here too on this concern...
If I hook up my cam via 1394, I lose the preview in Vegas (all I get is a "ext preview" written in red on the window) and the preview on my TV set is a magnificient mosaic of my video tracks with grey squares and little tiny green squares as well here ant there. Sound is like, hum, a half second of sound every 8 seconds.
External preview= :(

When you use the external preview, you will notice jerkiness, because what you are watching is just that, a preview. The pc screen will not be as jerky, because you can set the preview window size and quality to a lower setting so that the computer can keep up with the video information it needs to show you in the preview window. If you were to set the preview to best quality and make the viewing window as large as possible, I would bet that you would see almost the same jerkiness there as well, because the PC couldnt keep up with processing the video information for that setting and window size. In short, if you want to see a non jerky preview, use preview quality and a smaller preview window on the pc. This is more noticable on slower pc's. I had the same problem on my PIII 500, but when I went to my 2.4 GHZ pc, it works much better now, as the video and CPU is much faster.

hope this helps,
dave

To Summersond
SonicEPM wrote:
"9) Play the DV clip in the timeline again- if your 1394/DV>analog device/TV monitor are hooked up right, you should be seeing the timeline clip playback...at full framerate. At this point., Vegas is not recompressing anything- the file is being played back straight through Vegas without modification. If you aren't getting full framerate with all settings exactly as described, there is almost certainly a system config problem. Read this doc over and confirm everything previously stated."

source http://www.sonicfoundry.com/forums/ShowMessage.asp?MessageID=117055&Page=0

With the same hardware and Win2k I had full framerate playback on ext monitor without any jerks, but under WinXP Pro I have problems.

Victor, thanks for the info. I didnt know it had worked prev. under w2k. Would it be that XP is loading down the system too much? Did you set the app to the following? Below are clips from that thread.

> 6) Size the Vegas video preview window to 1/4 frame size (360x240 for NTSC, 360x288 for PAL), and set preview quality to "preview".

>Side note: Real time previews,as defined in Vegas, means that frames are processed as fast as the system can handle them. It does NOT mean you'll never have to render anything ever and always see everything at full framerate. As you start to add fx, transitions or anything that requires processing, framerate will drop depending, ENTIRELY, on the capabilities of your computer. The faster your system, the better the performance. If you prerender, that is internally the same as playing back straight-cut DV, and you'll have full-framerate previews again. With computers getting faster and cheaper every day, the performance of Vegas will scale upwards every time you upgrade the system, no additional hardware needed.

--------------------------------
I hope this helps. Some computers are simply not capable of playing back anything at full framerate, but most reasonably modern machines are, if properly configured. Consider this document a starting point, keep good notes, and post your results pro or con here.
>

I have no problems with Vegas video preview window, only external monitor.
I'm agree may be XP is loading down the system too much, but when I open Windows Task Manager/Performance during external preview I see CPU Usage not exceed
8-10%.

Hi all.

I just wanted to jump in here.

I am using the Dazzle Hollywood DV Bridge.
I know many here dislike the unit but outside from a few "going offline"
issues this device is working well for me. (TV out)

My set up:

Dazzle Inputs (Video) = S VHS VCR DECK and SONY DIGITAL 8 DV CAM.
Dazzle Outputs (Video) = S VHS out to Sony 20in Flat TV. DV out to Firewire port.

When in Vegas, I set preview to external monitor and all is well.
The only downside... as I start to add plugins, etc... the video playback slows
down BIG TIME on the TV out at full screen. (Back to that 320x240 box)

Running WindowsXP
Thanks

Dazzle Hollywood Bridge here too.

"The only downside... as I start to add plugins, etc... the video playback slows
down BIG TIME on the TV out at full screen." - This aint a fault of the DHB, the more Fxs etc used, the slower the preivew will be.

>Victor
I have the same problem:
http://www.sonicfoundry.com/forums/ShowMessage.asp?MessageID=162223&Replies=5&Page=1
Did you find any solution ?
Thx

Video with effects and generated media will get jerky on realtime preview to T.V. AVI video should preview fine. I wouldn't complain, Premiere can't even real time preview to T.V. If you are previewing to T.V. you don't want preview to computer monitor.

Yes i know... but i have no effect, no generated media... and with Win2K playback is not jerky... so why with WinXp playback is jerky ?
And btw, Premiere playback on external monitor (no effect) is not jerky with WinXP...

One thing you might want to try is the audio buffer. Some have changed it from the default of .35 to .40 and seen this type of problem helped.

Canapos ACDV-100 will do this funtion without a hitch. I have zero differnce in video quality out to my television using this device. Transitions and all it shows everything as the computer would only on a television. No jerky motion at all.