Virtual dub v T4

[deebee69]

So I have used VD to take my 1 1/2hr weddings into, which can be a canopus HQ file of around 136 gigs, which would of swallowed up many hundreds of 1920x1080 50i clips and then start a new SD project etc. which comes out pretty good ready for encore.
But this time i tried T4 as I already have it and followed Antons instructions except when it came to output I chose CBR and the result of the mpeg was not as good as VD.
So back into T4 and a new VBR 2 pass was encoded with some T4 sharpness and a slight boost on the colours this time.......Ah there you go much better,the only thing is it took 9 hours to encode on my beefy machine.
So question to Anton and anyone else is VBR and 2 pass the way to go and should I of adjusted the sharpness and colour sat boost onthe Canopus HQ avi 136gig within EDius first before doing it in T4 as this would of saved encoding time?

[antonsvideo]

adding sharpness slows encoding time, I don't add sharpness

what were your steps?

did you make an SD Canopus HQ or Lossless avi with T4?
or did you make m2v+ac3 and feed Encore directly?

NOTE: I have recently updated the T4 tutorial

[deebee69]

Thanks for quick responce Anton.
I just mark in and out of beginning and end of total wedding within one sequence in Edius and print to file in this case a lossless canopus HQ avi.Then into T4 followed your original instructions [havent checked back lately to your site ?]and made an mpeg ES seperate audio [mpeg layer1]not the best choice for audio I hear you say and a m2v file which when dropped into adobe Encore import bin states [Don't transcode ] which is what I want to see.It was only a slight amount of sharpness and sat added but it pushed up the encoding time a lot but as this was my first time trying to get equal or better than VD, Sd dvd from a HD timeline without making a new SD project in Edius and changing field and aspect etc ,I was pleased with the T4 outcome but can't evaluate how much better the quality is over VD with this one dvd.Maybe I will have to look back at your revised instructions ready for my next project.
Thanks again in advance.

[antonsvideo]

what was the duration of your file?

I usually do not go below 7700mbps for the m2v and I use ac3 audio at 256

If I need to fit more than 75min on a DVD, I make two DVDs if burning or DL DVD if it goes to replication

[deebee69]

Thanks again Anton
1Hr 16 min is the duration
your 7700 is that CBR or VBR ....if Vbr [2 pass?] what is your min set at?
Other than that I'm quite pleased at the result its just at this duration I can't see a noticable improvement over VD.
Just my opinion at this stage but will keep on with future projects

[antonsvideo]

using T4 should give you a way faster workflow compared to VD

if you have a large high quality monitor, you will see that T4 encode is sharper than VD

if you downscale a 1920x1080 resolution chart with T4, it will have 50 more lines resolution compared to VD