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Old 19th May 2015, 21:48   #1  |  Link
mo418
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Join Date: May 2015
Posts: 2
Workflow question & Ghosting (I think) in my video

Hi All,

I own honestech VHStoDVD 4 Deluxe. I tried this plug and play capture but it didn't go very well. Laggy video and video output quality could be better (despite the highest setting set). I have a 8mm camcorder directly plugged into the device. It has one video out (yellow) and one channel audio out (white). The Honestech device is this http://www.honestech.com/main/vhs-to...deluxe-old.asp

So I searched the internet, and found out I could use this hardware combined to VirtualDub to capture video.

After having a look at the captured video, I wondered what was those horizontal lines, and discovered this was interlacing.... And so on for many other things observed.

I had questions/encountered issues, so googled a lot, hence learned a lot on the subject. So what was first intended to be plug and play work, is now consuming me a lot of time (which is ok for me since I like learning everyday). Still I consider myself a noob because I'm never 100% sure of what I'm doing.

First of all, I have a workflow question and was wondering if I'm proceeding ok:

1 Capture
Honestech Hardware
  • RCA cable
  • USB 2.0

Virtual Dub Software
  • Video (Lagarith)
  • Audio Uncompressed (Direct Stream)

I get audio sync issue, but it is fixed value so....

2 Edit (for audio)
Virtual Dub Software
  • Video (Direct Stream)
  • Audio Uncompressed (Direct Stream) + Interleaving (value for Skew)

3 Deinterlacing
From web search, found Avisynth and QTGMC
VirtualDub
Avisynth script loaded

Here is the script
AVISource("filename_with_audio_corrected.avi")
AssumeTFF()
QTGMC( Preset="Slow" )

[*]Video (Fast Recompress)[*][*]Audio Uncompressed (Direct Stream)[*]

4 Encoding
I wish to use x264 encoding, and mp3.
Already did once, worked, but have ghosting (I think)...


So my first question would be:

Am I proceeding ok? Is there a step I could avoid to save some time or to have better quality?

My second question is about this (see images below). I thought this was chroma shift but after noticing it on many capture, I guess this is ghosting. I would like to confirm with you what is this phenomena.

This is an example of raw capture (interlaced)

http://1drv.ms/1LiBm3W

These are examples of deinterlaced video with qtgmc in virtualdub
Notice the halo (ghosting?) aside the man's shirt...

http://1drv.ms/1S8NaKJ

Notice the strange effect on the car's rear light (chroma shift or bleeding? Noise? Ghosting? I couldn't point out from web search...)

http://1drv.ms/1S8NqcK

Notice the Referee (edge of his pants showing on the boards, and white of the boards showing on his pants)

http://1drv.ms/1cN9rgC

All this being said, any help would be appreciated.

Thanks (a lot) in advance!

Last edited by mo418; 20th May 2015 at 01:17.
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