Problems Rendering (New)

Leee wrote on 6/28/2012, 3:55 PM
I shot a video project (a music video) with my Panasonic AG-HMC40P and transferred the MTS files (MPEG-2) to my computer. I shot it from four different angles so I could try out the multi-camera switching/editing features in Vegas 11.

The editing went fine, no crashes. Probably because when you're in multi-camera edit mode Vegas disengages any and all efx on the tracks.

The project settings were HD 1080-60i (1920x1080, 29.970 fps) And I first tried rendering the final edit in MainConcept MPEG-2, in which I got video stuttering, audio dropouts, the video slowed and lost sync with the audio. I then tried AVI - Sony YUV Codec and got no audio (and yes the audio tab was checked)

I kept with the rendering option of compatible renderings with my project settings. After no luck with the few available rendering options, I downloaded the K-Lite Codec Pack and used the ffdshow codec with the AVI settings. and I finally got a good render.

But I'd still like to know why I couldn't get a good render with the available settings and codecs that I already had?

Thanks for any advice or suggestions.

Comments

Steve Mann wrote on 6/28/2012, 5:24 PM
" I downloaded the K-Lite Codec Pack and used the ffdshow codec with the AVI settings. and I finally got a good render."

Define "good".

Sit down.
Do a forum search for "Codec Pack".

There's too much information missing in the description of the workflow. first, what is your target output? Where were you observing the problems?
John_Cline wrote on 6/28/2012, 6:27 PM
You don't say what player you were using to view the renders- video stuttering, audio dropouts, video slowing and lost sync with the audio are all signs of a playback problem, not an encoding problem.
Leee wrote on 6/29/2012, 1:02 PM
Steve -
"Good" in the context of my post = a render that didn't have the previous problems I mentioned.

I believed I mentioned the target output(s) in original post. Sit down and read it again.

I also mentioned in the original post where I was observing the problems: In playing back the rendered file.
Leee wrote on 6/29/2012, 1:10 PM
John, I tried viewing the rendered file on Windows Media Player, Quicktime, VLC player, all with the same results. However I did notice an improvement (although not totally without problems) with the player that came with the K-lite codec pack (it has an icon of a movie clapboard with "321" written on it.)

I've also noticed that if I change the output settings down to 720x480, (which dramatically decreases the file size) I will get a render with no problems. And as you can see in my specs I have relatively quick computer with 16GB of ram, so I wouldn't think that should have made a difference.
mudsmith wrote on 6/29/2012, 1:31 PM
During my first attempts at rendering for BluRay, I discovered, after a couple of failures and then posing questions here, that most of the rendering seems intended to render the audio and video streams separately........which seems to be one of your problems.

I do remember that checking the audio render box for a couple of the options yielded unexpected and unsatisfactory results......So, in the end, I rendered each stream separately and all was good. Quite a few posters here said this was necessary.

The other confusing issue, at first, was finding all of the options under each rendering format header in the list.......I actually don't remember what I had to do, but I think it involved right clicking the header setting.

The other additional confusion points were: 1)Some rendered formats cannot be seen on the Vegas timeline (only in DVD Architect, for my purposes), and 2)Rendering to bit rates that the Sony manual says are fine for BluRay were often not acceptable (too high) for DVD Architect.

Leee wrote on 6/29/2012, 2:05 PM
Thanks mudsmith, I will try rendering separate video and audio files.
Former user wrote on 6/29/2012, 2:17 PM
Leee,

I think Steven is trying to say that in the experience of many of us here, the K-lite codec download can be a problem. It often replaces good codecs with inferior ones and can sometimes actually cause more problems. You may not experience this but forewarned is forearmed.

Dave T2
Leee wrote on 6/29/2012, 7:56 PM
Dave,
Thanks, I guess I missed the point of Steve's post. But yes, I have read in previous posts that adding codecs like from the K-lite pack is usually unnecessary and often makes things worse, and I know in some situations that is totally correct. But I spent a few hours on this problem, rendering to several different formats and testing on several different players. I think I tried almost every combination. But it wasn't until I used the FFDShow codec was I able to get a properly playing video.
videoITguy wrote on 6/29/2012, 8:51 PM
My experience is that the "FFDshow" codec will do a lot of under the hood things to your system. I would not vouch for anything else that K-Lite PAC does - I stay as far away as possible.

That said, you should be noticing things on your computer happening differently with codecs in general once FFDshow is in the registry. It is doubly difficult to undo as well. Generally a generic install of Sony VegasPro without FFDshow will work better than one system that does after a post install. BUT your mileage will vary because of what might have been there prior to your SonyVegasPro or perhaps something else that came in between these two events.

The question is NOW are you satisfied with ALL of the apps on your computer behaving? Beware FFDshow is a system changer!