My experience with the AVT-8710 between the VCR & Canopus ADVC110

[NY2LA]

When I started an earlier thread, "AVT-8710 TBC & Lack of RCA Audio Input/Output - Will It Matter?", a gave it an unfortunate name. The video and audio staying in synch was never a problem when I experimented with the AVT-8710. Instead, other issues came up that were discussed.

I returned the AVT-8710 and got my money back a while ago. However, I saved the bad test captures that I did, with the AVT-8710 between the VCR and the Canopus ADVC110, for further analysis.

On that thread, I wrote that using the AVT-8710 "...led to double images where the skipped frames had previously occurred!" Later, I wrote, "I didn't see the double images this time when examining the file with Quicktime Player."

At the time, I was not aware that Quicktime Player was defaulting to showing only one field during playback. I was also not aware of its "High Quality" setting that displays both fields. Therefore, when I posted screenshots of Quicktime Player windows, comparing captures done with and without the AVT-8710, I showed only the "flagging" or "tearing" that got digitized in the captures done with the AVT-8710.

Now, using Quicktime Player's High Quality setting, I am able to demonstrate what I meant by "double images". (I am seeking a better term.) This screenshot shows two screenshots side-by-side, of the same frame of the same capture, done with the AVT-8710 in the chain. At left, is the frame at the single field setting. At right, is the same frame showing both fields.

[lordsmurf]

My answer remains unchanged: https://forum.videohelp.com/threads/324462-AVT-8710-TBC-Lack-of-RCA-Audio-Input-Output-...=1#post2011238
This is what is happening. Read that again.

[NY2LA]

My answer remains unchanged: https://forum.videohelp.com/threads/324462-AVT-8710-TBC-Lack-of-RCA-Audio-Input-Output-...=1#post2011238
This is what is happening. Read that again.

Tonight, I not only read it again, but I reread all of your earlier postings, to which you provided links. Rereading your earlier postings provided me with a new perspective, because the first time I read them was before the AVT-8710 unmasked the true problem, the horizontal time base errors and tearing. Ironically, although the AVT-8710 was not the right device to fix the problem per all of your information, it revealed the problem to me.

NYSOFTWAREMAN wrote in his review about the Panasonic DMR-ES10S DIGA Series DVD Recorder, Silver, on amazon.com, April 15, 2005: "Another new feature is what Panasonic calls 'VHS Refresh'. This feature offers improved quality when Dubbing VHS to DVD. When connecting a VCR and the DVD recorder to record VHS videotape images onto a DVD disk. Something similar to a 'Time Base Corrector', helps reduce jitter and also performs signal conversion to create a stable signal." I assume this is the feature that enables the Panasonic "ES" series DVD recorders to remove the tearing (i.e., during the pass through alternative you suggested.)

I really don't want to buy any used equipment, though. I wonder if this "VHS Refresh" feature is available on more recent Panasonic DVD Recorder models.

[lordsmurf]

No.
You'll need a device known to fix this -- not just any device from that product type.
Newer ones won't cut it that I've seen -- ES10 or comparable is required.

Read these, too:
- VHS tearing - hardware to fix it?
- VHS tearing even WITH TBC and JVC SVHS player
- Fixing VHS tearing during capture - JVC D-VHS VCR vs JVC S-VHS VCR

After reading those, you should understand how and why it happens, and most known ways to correct it.