JVC 9911 Example Video

[thecoalman]

Probably a big question a lot of people have, is it worth? What can I expect? Well I'm convinced. Here's an example video. The capture chain is a JVC 9911 (of course), DataVideo TBC-1000, and a Canopus ADVC 110. The LTBC/DNR on the JVC which is probably the major attraction of the higher end JVC models can be turned on or off while playing. The following short clip starts with it off, it's swithced on and off 2 times.

http://www.nepadigital.com/temp/shimmer.mpg 27MB

It's DVD compliant except for the mpeg audio so if you want to burn to disc to view on TV no conversion necessary.

[gshelley61]

That clip really does a great job of showing how effective the chroma noise reduction can be when using the JVC "DigiPure" TBC/DNR. I've tried lots of different brands of VCR's with a variety of built-in filters... the JVC TBC/DNR processor is pretty hard to beat.

[pfh]

Thanks coalman- the colored flood lights are where I noticed the effects the most. I'm quite pleased with my 9911 as well.

[thecoalman]

That clip really does a great job of showing how effective the chroma noise reduction can be when using the JVC "DigiPure" TBC/DNR. I've tried lots of different brands of VCR's with a variety of built-in filters... the JVC TBC/DNR processor is pretty hard to beat.

How is the Chroma noise introduced gshelley, I tried both composite and S-Video and both had the same results. Is it from being played, the recording itself? Any other way of removing it? I'm just about set now but am considering purchasing one more hardware filter for color correction possibly.

Thanks coalman- the colored flood lights are where I noticed the effects the most. I'm quite pleased with my 9911 as well.

Yes the lights really make it very visible, I'm very pleased myself. Just for this tape alone because it's avery important one, at least to me and that shimmering was driving me nuts. Short of thowing a software noise reduction filter on it there was no way to remove it, the filter of course destoyed all the detail which isn't much to begin with.

[gshelley61]

Chroma noise plagues most VHS recordings, probably due to the inherent low bandwidth the format has. Commercially produced VHS tapes that were properly duplicated on machines with wide gap recording heads usually have much less of this type of noise. It's most noticeable on tapes recorded by consumer or prosumer VCR's, especially in darker scenes with red or blue colored lighting, like your example clip. With no filtering at all, it can be pretty bad sometimes. The JVC S-VHS VCR's with the TBC/DNR are very good at suppressing chroma noise on playback.

I have a Feral A4:2:2 TBC/Frame Synchronizer that has some very nice hardware filtering, and does a great job of chroma noise suppression. It tends to soften the picture a little more than the JVC S-VHS VCR's do, though. Another way to reduce chroma noise is to dial down the color saturation in your source signal a little.

[Marvingj]

Super Job !! The Coalman

[thecoalman]

Super Job !! The Coalman

Thx, apparently according to gshelley I picked the perfect video. The difference is even more noticeable when it's being viewed on a TV.

[Wile_E]

Yes, it makes a very noticeable improvement when viewed on TV. I assume the TBC-1000 was on? Do you notice a difference if you turn the TBC-1000 off, since the JVC has a line-based TBC? I have the JVC 9911u, and have been curious what improvement is given with a full-frame TBC.

[thecoalman]

Yes, it makes a very noticeable improvement when viewed on TV. I assume the TBC-1000 was on? Do you notice a difference if you turn the TBC-1000 off, since the JVC has a line-based TBC? I have the JVC 9911u, and have been curious what improvement is given with a full-frame TBC.

Yes the TBC-1000 was on the entire time for that clip, for this particular tape it doesn't do much. It's in very good shape as far as sync goes so there isn't much for it to fix. It would probably be just as good without the TBC. There are a few "bumps" which is why I leave it on. Matter fact I leave it on for all tapes since I don't preview entire tapes looking for errors, I haven't seen it myself but I've seen it stated that the TBC can sometimes make a tape worse. I do check before proceeding with the full capture to make sure.

TBC's don't improve picture quality such as the noise removal you see but the timing. Full frame TBC's such as the datavideo will do more for vertical sync for example if you have jitter where the video is jumping up and down than the LTBC on the JVC. They also help maintain audio sync. See the TBC buying guide for more info on the differences.