I'm trying to render a slate as an .mpg2 for a 30 sec commercial and will eventually render the commercial the same way, but when I import my slate, it's very jumpy as in it skips a few frames before moving again.
I've rendered out hundreds of commercials with no problems until now.
I changed some of my encoding settings the other day, but I changed them all back. Any help will be appreciated....
....Also, what codec or settings would you suggest to render to get the best quality video on a DVD? Even video up to about 2 hours.
Re: Jumpy render problem by Mike Kujbida on May 19, 2008 at 8:11:23 pm
...but when I import my slate, it's very jumpy...
Import it to where? DVD Architect?
What render settings did you use?
Maybe it's your computer that's bogging down.
What kind of CPU do you have in it?
Also, what codec or settings would you suggest...
A DVD will only take MPEG-2 files for video and AC-3 or PCM (WAV) files for audio.
Even video up to about 2 hours.
You need to set a custom bitrate when you render anything over 70 min. from Vegas.
Edward Troxel covers these steps quite well in Vol. 1 Issue #7 of his newsletters.
Re: Jumpy render problem by Jeremy Rasnic on May 19, 2008 at 10:50:42 pm
What is the original footage format?
When you say it jumps or skips frames, do you mean that it does this while on the timeline or after you render it out and you are watching it?
If on the timeline, it may just be taking some time to access your HDD and ram sync the timeline up to the footage and audio.
If on the final encode watched in a media player, what player are you watching it on? Have you viewed it in a DVD set top player?
Settings will vary, but I use DVDA widescreen mpeg-2 for the video and I encode the audio seperately to ac3.
As for the bitrate, well that tends to vary based on time (you give a wide range from 30 seconds to 2 hours). There are free bitrate calculators out there and Ultimate S pro from Vasst.com has one included with the rest of its advantages and I would assume Excalibur would have that included but I am unsure as I have not used the script/plugin.
By the way, if you want to find the bitrate calculator for free, JohnMeyer (on the sony creative software forum) has one he made for free that will give you optimum quality for the length of your video. Just do a search for bitrate calculator on the sony forum to find it. There may even be a link to it on Vasst.com
Re: Jumpy render problem by Chris Franklin on May 22, 2008 at 5:21:30 pm
Thanks for the reply...
After I posted my problem (which I had never had before), I started rendering to other templates and I rendered to DVD Architect NTSC video stream and that seamed to work.
I've heard of people adjusting the bit rates for the best quality image, but I'm not sure where that's done in the Custom... tab. I always make sure that the render quality is set to Best and all the way on High.
Other than that, how can I get the absolute best quality DVD?
Also...I used to render my video and audio separately, but it seemed like whenever I would import my audio into Architect, my audio would be a lot lower that it was suppose to.
If your audio is lower than you want it, then a few things could be happening.
~you've got your master volume down.
~you're using dialog normalization in your render to AC3
~Your media is really loud and it's hitting a compressor
I'd wager on #2.
One thing I see often, and don't understand how/why it happens, is editors that turn down their master volumes in the editing app, and then attempt to mix with the channel knobs. Why? Leave the master set to default, use the volume on your speakers/monitors to control level in the room.
It's a slight divergence from the above topic, but is related, and happens a lot.
Douglas Spotted Eagle
VASST
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Re: Jumpy render problem by Mike Kujbida on May 22, 2008 at 6:37:35 pm
Also...I used to render my video and audio separately, but it seemed like whenever I would import my audio into Architect, my audio would be a lot lower that it was suppose to."/I>
Tweak your AC3 preset as follows:
Encode set to AC3;
Click on custom tab;
Dialog normalization: -31 dB;
Dynamic range compression: None;
On the first tab set diag. norm to "-31";
On the last tab marked preprocessing;
Set the Line Mode & RF mode profiles to "None";
Now save this as a preset.
Re: Jumpy render problem by Mike Kujbida on May 22, 2008 at 6:44:23 pm
I've heard of people adjusting the bit rates for the best quality image, but I'm not sure where that's done in the Custom... tab.
You're on the right track. After clicking Custom, click the Video tab. It's the boxes in here where you'll make bitrate adjustments and decide whether to use CBR or VBR.
There are a number of free bitrate calculators on the web.
In a nutshell, don't bother adjusting anything.
If it's over that length, use a calculator to give you the proper numbers to use for that project.
I always make sure that the render quality is set to Best and all the way on High.
Best is generally used if you have a lot of stills or generated media (i.e. titles) in your project.
Otherwise, Good is just fine.
