How to get a real time HDV preview? Very disappointed

[Adam Rose esq.]

your project properties set right? one method to guarantee it is to browse for media type from within Project window, highlight any of your HDV clips, and you’re all set to go. Apologies if this is old news
😉

FWIW, my E6600 C2D with 2GB can handle multiple streams of HDV quite happily. When i do (eg) 3 x PiP in a 4th, it starts to bog down, but that’s to be expected.

HTH

[Mike Kujbida]

I’m getting full 29.97 playback, even on Best/Full with HDV clips on my quad core, after letting it loop once.

With a few AVCHD clips that I downloaded, I let it loop a few times and it goes up to 29.97 at Best/Full.

Do you have at least 2 drives on your system, one for your apps and another for your working material?

[Arthur Bueno]

I have 4 internal drives, but not on raid. But drive throughput can’t be the issue, it’s small for hdv(same as for dv). I gathered the bottleneck is cpu power, but apparently not. Might it be the videocard? Which one are you using? Could you give me some specs on your system?

Mine: Intel Q6600, Gigbyte P35-DS3P, Samsung 7200rpm 500gb SATA drive (and some other 7200 IDE and SATA drives), Asus 8500GT silent. Vista 64 Home premium. Just put it all together, install Vista and Vegas, play a m2t clip from the timeline to secondary 1920×1200 Dell monitor,and voila: 13 fps (I exagerated a bit in the last post)..

About project settings: it’s PAL HDV, and settings I use are 1440 x 1080, 50i, upper first. Should be ok, or am I making a mistake?

[Arthur Bueno]

could you define ‘quite happily? Is that full size on a large monitor, at at least preview full setting? Are you looking at a fluent, truely 1920×1080 image?

[Arthur Bueno]

So you get full preview after looping once. But I just want to play a clip from the timeline and see it as it was meant to be on a big monitor.
You say you have a quad as well, what framerates do you get then, when you just play m2t from the timeline at preview-full quality (whithout looping to store in RAM)?

[Douglas Spotted eagle]

Not a hidden secret at all. All of our workstations provide full framerate playback of HDV and other flavors of HD at Preview/Auto and Preview/Full *if* the preview window is correctly sized. Otherwise Vegas has to scale as well.

More information about how you’re monitoring may be helpful.
As you’ve noted, many others enjoy this full frame playback as well. The problem obviously lies with how your system is set up.
Could be HDD setup, could be shared resources, could be PIO/DMA, could be antivirus, or any number of other affects.

Douglas Spotted Eagle
VASST
Aerial Camera/Instructor
Certified Sony Vegas Trainer

[Jerry Waters]

Please tell us what you mean by “if the preview window is properly sized.”

JerryW

[Arthur Bueno]

Thanks for replying Spot. It’s a relief to hear that at least it IS possible to have full framrate/full resolution HDV playback from the timeline.
Still, I don’t see why I don’t have it. This is an absolutely virgin system with very fast specifications, nothing on it but Vista64, Vegas 7, and some m2t files. Not even an internet connection. So why should I experience problems already?

I assume that with “preview window correctly sized” you mean: preview on secondary monitor, with the options “scale output to fit display” and “display frames in video preview window…” turned off?
Or do you mean I should preview in a preview-window that I drag to the second monitor, and that is given the right size by double clicking the top bar (but that gives me even worse results)?

Also checked if it could be the m2t media. In Vegas Explorer the “Name” is listed as “m2tsplug.dll” and the “Format” is listed as “Sony M2TS,” so according to John Meyer at the Sony forum, it should be captured correctly.
Also it says there about the media: 25fps/interlaced, 1440x1080x32, So I use project settings 1440*1080, 50i.
Empty project, just try to play the one file from the timeline.
Have I been missing something still?

[Douglas Spotted eagle]

Size your window up or down with “Scale to fit Preview” enabled.
You’ll see a change in framerate.
Now un-dock the Preview window and double click the header bar. You’ll see better performance from the Preview

Douglas Spotted Eagle
VASST
Aerial Camera/Instructor
Certified Sony Vegas Trainer

[Laszlo Kovacs]

Hi Arthur,

I have to ask if you have installed an nvidia driver for your card, or do you use the windows built in driver – if so immedately install the nvidia driver.

Windows built in driver does not perform very well…

By(t)e

K.L.