I could barely get the video to play, Marc. And the audio was so muddy, I couldn't tell if it was out of sync or not.
What is your source for this video? What type of camcorder is it coming from?
And what file format and settings are you outputting it as?
thanks for helping again. :-)
to answer your questions:
1. I could barely get the video to play, Marc
Answer: works fine on 3 computers of mine - can also provide you the file (4MB):
2. And the audio was so muddy, I couldn't tell if it was out of sync or not.
Answer: Audio is always fine - video is the problem
3. What is your source for this video?
Answer: Source is wmv-file, 176*144 - can also upload HD-file - doesn't make any difference though.
Video without (i deleted it) wma-file parallel (beginning of the video) video is fine
Video with mp3-file parallel (around 2min 17sec) video is fine
Video with wma-file parallel (at 6min 16 sec) - video-frames keep jumping around
4. What type of camcorder is it coming from?
Answer: Different consumer tape-cams and Sanyo 720p Cam
5. And what file format and settings are you outputting it as?
The file I uploaded was wmv
I also tried quicktime - same result
It think the problem is related to the video source and the project settings you're using. Although, without knowing if this is HDV or AVCHD video and if you're using the appropriate project settings for that source, it's hard to say.
Hope you find a solution.
the video-source for the helicoper-shots:
3072 kBit/ sec data rate
3264 kBit/sec full bitrate
the video-source for all other shots:
8949 kBit/sec data rate
9080 kBit/sec full bitrate
Audio-file "Rage - Straight to Hell":
Windows Media Audio
Timebase: 25 fps
Frame: 1280x720 16:9
Audio Samplerate: 48000 Hz
I think through my testing I was able to find out what causes the problem:
When I take a wma file at the position 06 min 12 sec - the video jumps around when rendered (not in preview)
When I take a mp3-file at the same position it doesn't.
I would not recommend using the HDV project settings when you are using WMVs as source files.
In fact, since your video is for Vimeo, there's no point in working in hi-def at all. I'd recommend you use the standard DV settings.
Even better if you use DV-AVIs as your source files rather than WMVs. The FAQs to the right of this forum tell you how to convert the files.
This will give you a boost in performance all around and will likely resolve virtually all of your problems.
Also, have you tried converting your WMA audio to MP3 or WAV to see if that makes a difference?
The video will not be for vimeo - I just uploaded it for showing the problem.
I am aiming for 720p/25fps
My source files are all wmv at the moment.
When I reconvert wma to mp3 the problem is solved - but still my audio-database is wma mostly.
Still wma is a supported file format and therefore I now have problems I'd like to solve :-)
I still don't think WMVs are the best source for a project using HDV settings. It's likely to cause interlacing issues.
It's interesting that converting the WMA solves your problem. This could be getting to the root of your problem -- particularly if the WMA is a purchased file. This could indicate that some sort of digital rights management could be causing you problems.
Is this the case, or is this file ripped from a CD?
It's ripped from the original CD - so no DRM or anything like it.
P.S.: I accidently pushed the "aswered" button - can I undo this?
If you are ripping from an Audio-CD, you would be best to use PCM/WAV. The material is at 44.1KHz 16-bit, but in the ripping process, I'd go to 48KHz 16-bit for all Audio, that you intend to use in an NLE for Video work. This will save the conforming stage in the NLE.
Is there some compelling reason for going to WMA? Maybe I'm missing something here. I only use WMA, where I need to work with multi-channel source files, though I most often encode these with either the SurCode DD 5.1 SS plug-in, or work with six discrete PCM/WAV files. WMA's can allow transport of the six channels in one file, but I nearly always opt to keep them separate.