When I capture DV from my Sony HC-30 Handycam and view the clip in edit mode, I get a distorted picture unless I split the audio/video. Is this normal? I tried capturing in MPEG and it worked fine.
Thanks for any help
Rayt
DV clips audio/video problem
Moderator: Ken Berry
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jchunter
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heinz-oz
I agree with what John said, provided you do not want to edit the captured footage. If you want to trimm different clips, add transitions etc. mpg capture is not going to do it for you. At best you will end up with an awfully looking video because the already compressed mpg had to render and be compressed again.
Better to capture in DV AVI in such cases. Your camcorder being a SONY, it may be best to use the software that came with your camcorder for the capture. SONY is very finniky and many SONY users have problems capturing with other software.
Better to capture in DV AVI in such cases. Your camcorder being a SONY, it may be best to use the software that came with your camcorder for the capture. SONY is very finniky and many SONY users have problems capturing with other software.
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jchunter
Heins-Oz
Sorry, but I can't agree with your assertion that editing Mpeg produces "awful-looking video." If it did, I certainly would not suggest its use. Nor, would I have used them myself on more than a dozen projects.
I did some tests last year at 8Mbpi that captured video of a resolution chart in both AVI Type 1 and mpeg2. I edited and re-edited these videos, re-rendering 8-10 times and could not see ANY loss of resolution in either format. I repeated the test with some high resolution moving video. Coalman showed that mpeg compression artifacts begin to show if the bitrate is below 6Mbps.
If you have performed some specific resolution tests that show loss of resolution at 8Mbps, please post these results separately.
In Rayt's case, he said that Mpeg worked for him. He has a whole lot of other challenges ahead of him, on the way to burning a DVD, that will be more important than the specific capture file format.
John
Sorry, but I can't agree with your assertion that editing Mpeg produces "awful-looking video." If it did, I certainly would not suggest its use. Nor, would I have used them myself on more than a dozen projects.
I did some tests last year at 8Mbpi that captured video of a resolution chart in both AVI Type 1 and mpeg2. I edited and re-edited these videos, re-rendering 8-10 times and could not see ANY loss of resolution in either format. I repeated the test with some high resolution moving video. Coalman showed that mpeg compression artifacts begin to show if the bitrate is below 6Mbps.
If you have performed some specific resolution tests that show loss of resolution at 8Mbps, please post these results separately.
In Rayt's case, he said that Mpeg worked for him. He has a whole lot of other challenges ahead of him, on the way to burning a DVD, that will be more important than the specific capture file format.
John
Last edited by jchunter on Wed May 11, 2005 2:44 pm, edited 1 time in total.
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Trevor Andrew
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rayt
Appreciate the help
Thanks to all who have posted.
For Trevor: I did try to capture in both Type-1 and Type-2 formats. Also, I am using Firewire. I originally captured the video using DV-GATE software, and again tried capturing it in VS. The result is the same.
I know it is the audio interfering because I can mute the audio from the Clip Menu and the video looks fine (although muted). If I unmute the audio the video is scrambled. It looks like a bunch of interlaced lines.
I can open the file in Windows Movie Maker and a couple other programs with no problem.
Thanks again
Rayt
For Trevor: I did try to capture in both Type-1 and Type-2 formats. Also, I am using Firewire. I originally captured the video using DV-GATE software, and again tried capturing it in VS. The result is the same.
I know it is the audio interfering because I can mute the audio from the Clip Menu and the video looks fine (although muted). If I unmute the audio the video is scrambled. It looks like a bunch of interlaced lines.
I can open the file in Windows Movie Maker and a couple other programs with no problem.
Thanks again
Rayt
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THoff
It sounds like whatever codec is trying to deal with the audio is unable to do so.
Can you try opening the AVI file in Windows Media Player to see if that plays the file correctly, and using File -> Properties to see which codecs are being used for both the audio and video? Also, according to Task Manager, what is the CPU utilization during playback?
Can you try opening the AVI file in Windows Media Player to see if that plays the file correctly, and using File -> Properties to see which codecs are being used for both the audio and video? Also, according to Task Manager, what is the CPU utilization during playback?
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Trevor Andrew
Hi Rayt
Capturing to Dv-avi via Firewire, use dv type 1.
There should be no audio problems with this type of capture as the footage is copied to your pc rather than being re-coded. (The file size will be about 13 Gb per hour)
What you have on your camera is exactly what you get on your pc.
As the clips play OK using Windows Media Player, Real Player, Power Dvd etc, I can only assume that the playback problem only when playing the video in Video Studio.
Video Studio’s preview playback is not the best in the world.
Playback will be poor if your pc is not up to the job.
Check out the system requirements from ‘help’ press F1.
Check system tweaks.
Defrag your hard drives.
Lots of edits in the timeline can also slow project playback
But there are two types of playback:-
1 / Instant Playback, which you are probably using now (requires a fast pc for good playback)
2 / High Quality Playback
High Quality Playback ( select from Preferences ) renders the project to temporary preview files.
This rendering may take some time, suggest you test a smaller clip.
The files are then played in the preview window, the quality should be much better as the source is direct from your hard drive rather than through the timeline project.
Check for the preview file location File / Preferences / Preview tab as this is where the files will be stored and you will want to delete them later. Although you can access Preview Manager from Tools.
Give the High Quality Playback a go.
Hope this helps
Ps What is the spec’ of your pc?
Capturing to Dv-avi via Firewire, use dv type 1.
There should be no audio problems with this type of capture as the footage is copied to your pc rather than being re-coded. (The file size will be about 13 Gb per hour)
What you have on your camera is exactly what you get on your pc.
As the clips play OK using Windows Media Player, Real Player, Power Dvd etc, I can only assume that the playback problem only when playing the video in Video Studio.
Video Studio’s preview playback is not the best in the world.
Playback will be poor if your pc is not up to the job.
Check out the system requirements from ‘help’ press F1.
Check system tweaks.
Defrag your hard drives.
Lots of edits in the timeline can also slow project playback
But there are two types of playback:-
1 / Instant Playback, which you are probably using now (requires a fast pc for good playback)
2 / High Quality Playback
High Quality Playback ( select from Preferences ) renders the project to temporary preview files.
This rendering may take some time, suggest you test a smaller clip.
The files are then played in the preview window, the quality should be much better as the source is direct from your hard drive rather than through the timeline project.
Check for the preview file location File / Preferences / Preview tab as this is where the files will be stored and you will want to delete them later. Although you can access Preview Manager from Tools.
Give the High Quality Playback a go.
Hope this helps
Ps What is the spec’ of your pc?