Advc 300 + tbc

[Tafflad]

Converting VHS tapes to DV AVI

After advice on several sources I bought an AVT-8710 TBC to get the best out of my VHS conversions.

Set up is -

.Panasonic NV-H 800 > AV-8710 > ADVC300 > Sony Vegas capture

-----Svideo --Svideo ---SIEE 1394

Started to use it for first time and very strange result – which is perplexing.

VHS tape has an opening sequence of black, then some title text, after about 10 sec , a then second title screen, followed 10sec later by gradual fade in of video.

If I play the tape .. this works fine.



When I digitized it without TBC all digitized OK, however when I digitized today with the 8710 in the path, the resulting capture has the first title screens OK, but when the second screen comes in the first stays .. so ends up with a text overlay mix.

If I look at frames individually they are correct, but when I play the DV file it’s screwed ….. weird ?

The rest of the video seems to have captured OK …

Thinking it something stupid … I cleaned video heads, and ran capture again … same thing?


Is there something I need to do here …………….. could there be interaction between 8710 & ADVC300 ? or is it something else?


Do I need to turn anything off on the ADVC300 ?

[kbosward]

That is weird! So the captured AVI file looks okay frame by frame but when played it seems to have this overlay effect? What are you using to play the AVI file? Also, have you tried connecting the output of the TBC to a TV, just to make sure the signal you are feeding in to the ADVC300 is okay?

Ken.

[antonsvideo]

maybe that TBC has built in NR and it maybe set to maximum in which case you would get image lag

[Tafflad]

I have also noticed that I lose frames ... on non TBC capture can see continuous frame, with TBC have noticed several occasions with display breaks to extreme noise .. then drops to colour bars for a few frames then recovers.

The TBC does put out colour bars on no signal.


The reason I got the TBC was that several on-line sources advise that the lack of a full frame TBC in the ADVC300 prevents getting the best from VHS capture.

[antonsvideo]

I am not familiar with that TBC, is it new or did you buy it used

are your cables good? if the TBC adds bars because of signal loss, then there could be cable issues

[Tafflad]

There is certainly something weird going on ...
Here is an output screen grab which shows the problem Scene 1, Scene 2 and the output which has merged them ..





While creating screen grabs I noticed another weird thing that I guess is related, but don't yet know how.

I took the same 'merged' screen grab and resized it ... when I resize it by 50%the overlaid text disappears... nothing special just a simple 50% resize in paint.

Maybe this is something to do with Interlacing ?

[Tafflad]

Originally Posted by antonsvideo

I am not familiar with that TBC, is it new or did you buy it used

are your cables good? if the TBC adds bars because of signal loss, then there could be cable issues

The AVT-8710 seems to be the most rated/popular standalone TBC, see recommendations such as:
http://forum.videohelp.com/threads/3...-replace-a-TBC!


TBC is new, as are SVHS cables, and bought pro grade all with gold connectors.

[GrassValley_BH]

Definitely interlacing on the 50% resize thing. Smart programs will just drop one of the fields and do only a horizontal scale on a 50% resize.

Originally Posted by Tafflad

There is certainly something weird going on ...
Here is an output screen grab which shows the problem Scene 1, Scene 2 and the output which has merged them ..





While creating screen grabs I noticed another weird thing that I guess is related, but don't yet know how.

I took the same 'merged' screen grab and resized it ... when I resize it by 50%the overlaid text disappears... nothing special just a simple 50% resize in paint.

Maybe this is something to do with Interlacing ?

[antonsvideo]

connect a video monitor to the TBC output and see how it looks then