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View Full Version : Questions about capturing from VHS to PC using Dazzle


Cyber Akuma
25th August 2012, 22:03
So I have a Dazzle connected to my laptop, and am capturing in VirtualDub 64 using uncompressed audio and huffyuv video (Is there any huffyuv-like equivalent for audio?), all 64 bit. Just to be safe and make sure I don't get any dropped frames due to the laptop's slow internal HDD, I connected a USB 3.0 external drive.

I am planning to encode it to MP4 using H264/AAC when its done capturing.

Three questions about this:

1. It defaulted to 25FPS video, I set it to 29.97FPs NTSC. Is this what I should have used? Or should I use another setting? (Does the Nyquest Rate even apply to analog video? Should I have been capturing at 60FPS then decimate to 30FPS during my encode?)

2. The test capture I did showed interlacing (I thought that only happened in MPEG format video?). Am I capturing it wrong or is it supposed to come out like this? It has been a while since I had to de-interlace video, and that was back when XVID AVI was what everyone used, never had to de-interlace using MeGUI before.

3. Any other quick tips? All the times I have encoded before in the past, it was from a file source, not capturing analog video like this.

Guest
26th August 2012, 00:39
1. It defaulted to 25FPS video, I set it to 29.97FPs NTSC. Is this what I should have used? If the VHS tape is PAL, then use 25fps. If it is NTSC, then use 29.97.

2. The test capture I did showed interlacing (I thought that only happened in MPEG format video?). Am I capturing it wrong or is it supposed to come out like this? If the content of the VHS is interlaced, then the content of your capture will be interlaced.