Getting latency in CVD

[buick]

I have been encoding old poor qaulity vhs tapes to 352 x 480 mpeg2 and finally having some sucess but Im getting a bit of latency in the background when the camera pan's around. Im currently using studio 8 and running the bitrate at 3500 should I use more ? I want to make sure that they are able to be played in other standalone dvd players. I tried a few cvd templates in tpmge with no sucess as far as qaulity. I dont believe that studio 8 will do 2 pass which Im sure hurts me some but other wise I have been very please with out come of mpg. If you feel bitrate would help with the problem that I am having will there be issues with not playing in stand alone players If I raise it. Thanks for any help.

[thefox149]

what do you mean by latency...ghosting???
Do you mean audio lags behind vid. Does this latency happen in only the encoded result or in the original avi?? Does this ghosting occur on your Pc ???

Please specify

Plus using a bitrate of 3500 will not make you movie CVD compliant it might play in some DVD players but not all you will be making an XCVD using a bitrate that high

CVD has just about the same specs for SVCD except for frame size Pal 352/576 and NTSC 352/480 so anything above might not be supportted in other players

I use 2520 bitrate for vid and 224 for audio

And CVD is the way to go until you get a DVD burner......


hope this helps

[puertorican138]

And CVD is the way to go until you get a DVD burner......

I agree.

[SatStorm]

You need filtering before the encoding!!!!

Filtering ain't only for make the source better visually, it is also to make the source look better on the encoder.
For example, the random noise, even if we can't see it (with our eyes), is the no 1 enemy of any encoding!
If you filter correct, you can use a bitrate about 3000kb/s for 1/2 D1 CCIR-601 resolution and have perfect picture.
If you don't filter, you need more than 3500kb/s! Some users reported 4000kb/s for perfect picture.

2 are the needed filters: Static Noise Reduction and Dynamic Noise Reduction. Those two filters improve a lot ANY analogue source, no matter how clean or not it is!

Secondary filters also needed, but those are different for PAL and NTSC.

[marsmayhem]

If you're capturing with Studio 8 as AVI, and then encoding using TMPGEnc to MPEG2, you might want to check the Field Order in TMPGEnc.

I did some experimenting with MPEG2 encoding some time back with my own VHS to VCD/SVCD/CVD projects, and noticed that if I don't specify the field order correctly in TMPGEnc, panned scenes come out jerky (ie. camera pans across the room, the encoded video kind of jerks along until camera stops).

I played around with TFF/BFF in TMPGEnc, and that made a difference to my video playback. Bitrate didn't make a bit of difference.

FYI: I capped to uncompressed AVI using my ATI RADEON 64Mb VIVO, 352x480, interlaced; then I encoded using TMPGEnc to the formats I was experimenting with (VCD, SVCD, CVD).

I hope this helps someone out there

[buick]

Thanks for the replys and I'll try to explain a little more. I did a test last night and raised it to 4500 and was much better , but as people here has mentioned that may not be compliant What I am doing is capturing from my VCR to DAC-100 in DV avi then using studio 8 to encode to mpeg2 352x480 and been playing with the bit rate as I stated. What I mean by latency is when the camera is moving from right to left sorta fast the background seems to be a bit laging if that makes sence but probley is affecting the whole picture but im just seeing the background more. I am burning on a dvdr using unlead factory 2 and using it to put menu etc..... So if Im understanding by changing the bitrate as I have
is not making it compliant and I am using 48k on audio ? Now I understand I could just make it all dvd format and if I have to I will but concidering the quality that Im working with isnt that good rather put more on a dvdr. I fully understand it wont get better but would like to keep what qaulity I have and thought it could be done with a lower bit rate and size. Will standalone dvd player only play certain bitrates?
Thanks again for all the help.

[buick]

PS Im thinking I should be calling this D1 instead of CVD with the way Im doing my encodes and putting them on DVDR's. Sorry If I was explaining it wrong I'm a newbie.

[marsmayhem]

I still think it's a field order problem you could be having

Visible macroblocks and breaking up of the video image during movement is normally a fairly good indicator of insufficient bitrate (too much movement, not enough bits = blocks).

Try changing your field order in TMPGENC (or Studio 8, since you're using that already) when you encode to MPEG2 - use a Source Range function to just encode the problematic part.

If that doesn't work, then at least you know for sure.

Does the background look funny when you play back the capped AVI on your PC? If it's in the source, it'll be in the target too (most likely)...

[thefox149]

your audio at 48k should be ok .....but it's more risky......I read that 48k at 224 should be ok on all players made after 1999 but if you want 100% compatilbilty the 441 is what you want..unfortunalty it won't be dvdr compliant ....so in the future you would have de mux(sepearte audio and vid file)to upsample the audio part which is possible using heahac3e or besweet .....then mux them back together again.....which will solve the audio comp problem of dvd audio

unless I am wrong...but thats what I have been doing with no problems

[puertorican138]

your audio at 48k should be ok .....but it's more risky......I read that 48k at 224 should be ok on all players made after 1999 but if you want 100% compatilbilty the 441 is what you want..unfortunalty it won't be dvdr compliant ....so in the future you would have de mux(sepearte audio and vid file)to upsample the audio part which is possible using heahac3e or besweet .....then mux them back together again.....which will solve the audio comp problem of dvd audio

unless I am wrong...but thats what I have been doing with no problems

You're right.