If I am going to burn a 120min project, I need to set my project to 4000kbps.
Should I also capture at that rate, or capture at a higher rate and let the program down res the project for burning?
Capture and Burn at same kbps?
Moderator: Ken Berry
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Charles
captuer and burn
I find that if I capture at the same bit rate that I intend to burn at the voice sync is much more reliable. If you have already captured and want to burn at a lower bit rate you may have to split the audio, save to a seperate file and then resync it with your video to burn. I insert the audio track in about 20 minute segments and it seems to sync up again with fair reliability.
Charles
Charles
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THoff
I would capture at a higher bitrate, especially if you are going to do any editing, apply filters etc. Preferably, don't capture to MPEG2 at all, use DV AVI or AVI with the Huffyuv codec.
Transcode to the required bitrate separately, using a Quality setting of 100% to allow the encoder to spend the maximum amount of time on identifying motion vectors, which will help with video quality at that relatively low bitrate. This can't be done in realtime without hardware assistance using today's CPUs, so trying to do it during capture would be foolish.
Transcode to the required bitrate separately, using a Quality setting of 100% to allow the encoder to spend the maximum amount of time on identifying motion vectors, which will help with video quality at that relatively low bitrate. This can't be done in realtime without hardware assistance using today's CPUs, so trying to do it during capture would be foolish.
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jimcassidy
When I have been capturing from my DV camcorder, I use DV AVI Type 1 and it works very well.
However, when I capture analog with my v-stream PCI analog capture card and VCR, I am not sure what to use. I tryed AVI, but the options are all different than with the DV camcorder. It says the compression is YUY2 and that gave me a 120GB file. Obviously something else needs to be done. The only other option I had was to capture to Mpeg, which everyone says not to do.
However, when I capture analog with my v-stream PCI analog capture card and VCR, I am not sure what to use. I tryed AVI, but the options are all different than with the DV camcorder. It says the compression is YUY2 and that gave me a 120GB file. Obviously something else needs to be done. The only other option I had was to capture to Mpeg, which everyone says not to do.
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THoff
You captured uncompressed AVI, which will in fact create HUGE files.
When you click on the Capture tab, click on the gear / cog icon to access the Options menu. Go to Video Compression and choose a codec.
The one that I recommend for video editing is Huffyuv. It doesn't compress as much as DIVX, for instance, but it is lossless, and this is really what you want for the editing phase. You can then output to any format you like when rendering the final output file.
When you click on the Capture tab, click on the gear / cog icon to access the Options menu. Go to Video Compression and choose a codec.
The one that I recommend for video editing is Huffyuv. It doesn't compress as much as DIVX, for instance, but it is lossless, and this is really what you want for the editing phase. You can then output to any format you like when rendering the final output file.
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jimcassidy
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THoff
The slider for the compression setting that UVS shows has no effect on Huffyuv, it always stores the video lossless.
Regarding the other settings in Huffyuv's configuration dialog, I'd leave those alone. Definitely don't use the "Reduced resolution" feature, that stores video that is reduced by 50% in both dimensions, and expands it again during decoding to the original size. You wind up with an image that is the same size as what was fed in, but contains only 25% of the image information.
You can use Huffyuv for DV material, but there is no point. Consumer DV is efficiently compressed at a bitrate of 25Mbps. and you would be taking that data, decompressing it completely, and then recompressing it again into a different lossless format. The resulting file cannot contain any more detail than what you started with, but you'll wind up spending quite a bit of time transcoding.
Regarding the other settings in Huffyuv's configuration dialog, I'd leave those alone. Definitely don't use the "Reduced resolution" feature, that stores video that is reduced by 50% in both dimensions, and expands it again during decoding to the original size. You wind up with an image that is the same size as what was fed in, but contains only 25% of the image information.
You can use Huffyuv for DV material, but there is no point. Consumer DV is efficiently compressed at a bitrate of 25Mbps. and you would be taking that data, decompressing it completely, and then recompressing it again into a different lossless format. The resulting file cannot contain any more detail than what you started with, but you'll wind up spending quite a bit of time transcoding.