Even a short render ends up wrong at DVinfo.net

Nathan Swinn · March 22nd, 2010, 01:25 PM

My clips playback fine in the camera, Ex1. HD1920X1080 30P.

I imported the clips as MXF and then mp4, first using clipbrowser and then using Explorer.

I can't get a ten second clip out of Vegas without dropping big frames and freezing playback. I tried rendering as qt, and wmv, with the same results.

I wonder if this is a computer problem. I'm running on an underpowered system - Core Duo 2ghz, 2ram, 32 bit version of vegas - until I get a new desktop built. On this system, playback along the timeline is heinous.

I'm going to check import and render settings but I thought I'd ask if this if this is a computer issue.

Seth Bloombaum · March 22nd, 2010, 04:43 PM

Can you trust the playback of your renders on this system?

I'd recommend rendering to something real small, say 854x480 WMV at 1200Kbps bitrate. Your PC should be able to play this back with no problems - that may tell more of the story.

If it still has big drops & etc., you will indeed have to look at every previous step.

If it looks good, the problem would be your computer's ability to play back renders with the settings you'd used previously.

That you can't really preview the footage makes it difficult to troubleshoot.

The render process *should not* be the problem in this. A slower system should just slow down, typically no frame drops take place during rendering, they really shouldn't.

Nathan Swinn · March 22nd, 2010, 05:27 PM

Yes, could be a playback problem.

Still, I'll do exactly as you suggest. There may be an import\export problem but I'll run some renders, too.

Thanks.

Nathan Swinn · March 24th, 2010, 06:50 AM

Much better performance editing native 1280\720 30p, and rendering out as same with Sony AVC setting for youtube playback. The computer still can't cope with the vid on the timeline but the playback once rendered out is solid. Some initial juddery motion to the clips I've rendered, but after that smooth.

March 22nd, 2010, 01:25 PM	#1
Nathan Swinn Regular Crew Join Date: Dec 2009 Location: Ontario, Canada Posts: 35	Even a short render ends up wrong My clips playback fine in the camera, Ex1. HD1920X1080 30P. I imported the clips as MXF and then mp4, first using clipbrowser and then using Explorer. I can't get a ten second clip out of Vegas without dropping big frames and freezing playback. I tried rendering as qt, and wmv, with the same results. I wonder if this is a computer problem. I'm running on an underpowered system - Core Duo 2ghz, 2ram, 32 bit version of vegas - until I get a new desktop built. On this system, playback along the timeline is heinous. I'm going to check import and render settings but I thought I'd ask if this if this is a computer issue.

March 22nd, 2010, 04:43 PM	#2
Seth Bloombaum Inner Circle Join Date: Sep 2003 Location: Portland, Oregon Posts: 3,420	Can you trust the playback of your renders on this system? I'd recommend rendering to something real small, say 854x480 WMV at 1200Kbps bitrate. Your PC should be able to play this back with no problems - that may tell more of the story. If it still has big drops & etc., you will indeed have to look at every previous step. If it looks good, the problem would be your computer's ability to play back renders with the settings you'd used previously. That you can't really preview the footage makes it difficult to troubleshoot. The render process should not be the problem in this. A slower system should just slow down, typically no frame drops take place during rendering, they really shouldn't. __________________ 30 years of pro media production. Vegas user since 1.0. Webcaster since 1997. Freelancer since 2000. College instructor since 2001.

March 22nd, 2010, 05:27 PM	#3
Nathan Swinn Regular Crew Join Date: Dec 2009 Location: Ontario, Canada Posts: 35	Yes, could be a playback problem. Still, I'll do exactly as you suggest. There may be an import\export problem but I'll run some renders, too. Thanks. Last edited by Nathan Swinn; March 22nd, 2010 at 05:29 PM. Reason: Clarity

March 24th, 2010, 06:50 AM	#4
Nathan Swinn Regular Crew Join Date: Dec 2009 Location: Ontario, Canada Posts: 35	Much better performance editing native 1280\720 30p, and rendering out as same with Sony AVC setting for youtube playback. The computer still can't cope with the vid on the timeline but the playback once rendered out is solid. Some initial juddery motion to the clips I've rendered, but after that smooth.