changing audio bitrate....

[vcd4me]

Ok I have a divx file I want to convert its 80 mins long and I am trying to get the best quality.

I am trying to do svcd.

So here is what I did
change the audio to 128kbps
2 pass vbr min 300 avg 1150 max 2500

Now when I go to next screen the average says 1600 (I didn't put it there) and is highlighted blue, The other thing I should note is the file size says 123.xx % but
on the graph bar thing on the bottom it says around 80%

Can anyone tell me what to expect ?

Will I be able to put this on 1 disc?

Does anyone have any suggestions on how to get the best quality ?

BTW- This is the first time I have tried vbr
and does tmpgenc always say "analyzing " in the center of the screen
when using vbr.

Thanks in advance
VCD4ME

[vcd4me]

UPDATE:

The movie finished overnight .
I used Nero and when it is done being analyzed by Nero it says 60% of disc total.

Now can someone explain:

What I did wrong or right?

I do want to have the highest quality but do I have 40% more to get a better quality?

Please someone help

Thanks in advance
VCD4ME

[MaximumIce]

Hey Man,

Divx is a different kind of compression than SVCD - so when you are trying to convert to SVCD - all that information on the original source file may not fit onto one disk when it is in SVCD compression format. You'll have to use two disks. It will be on page 3 of the wizard. Check off source range and go into that window - using start set frame and set end frame you can choose the portion of the movie you want to encode first as PART 1 of your movie. However, once you do this, you will probably run into the same problem as everyone else on this site and that will be the unsynchronized audio to video on the final Mpeg. Good luck.

-Ice

[ZippyP.]

Ok I have a divx file I want to convert its 80 mins long and I am trying to get the best quality.

I am trying to do svcd.

So here is what I did
change the audio to 128kbps
2 pass vbr min 300 avg 1150 max 2500

Now when I go to next screen the average says 1600 (I didn't put it there) and is highlighted blue, The other thing I should note is the file size says 123.xx % but
on the graph bar thing on the bottom it says around 80%

Can anyone tell me what to expect ?

Will I be able to put this on 1 disc?

Does anyone have any suggestions on how to get the best quality ?

BTW- This is the first time I have tried vbr
and does tmpgenc always say "analyzing " in the center of the screen
when using vbr.

Thanks in advance
VCD4ME

For good quality SVCD, don't try to go over 60 mins. per CD. Use the Source Range Function, like Maximumice said, to split up your file. I have never had sync problems caused by using it but I use a separate wav file as the audio source to avoid those kinds of problems. (Everyone should!)

IMHO, your average VBR setting is quite low for decent quality SVCD video. I don't like to go below 1800 but will drop to 1600 on occassion, and never any lower. I don't know why your file size estimates are so screwy, I assume you're using the wizard in TMPGEnc. You should be able to adjust the Avg. bitrate to get 99% of the CD filled, I've never heard of your problem before. Maybe reinstall with a newer version?

You are on the right track, and using VBR maintains quality while reducing filesize. You will have to experiment to find your preferred settings.

Analyzing is what is displayed during the first pass of 2-pass VBR. Tthe message disappears after 50%, when the encoder does the second pass and the actual encoding.

Good luck! 8)

[vcd4me]

Thanks MaximumIce and ZippyP. ,
I have made plenty of svcds before all on 2+ discs but using only cbr sorry for the confusion.

I know about vcds and svcds

What I am trying to do is get the best quality from the file 80 min cartoon movie for my son on 1 cd-r instead 1150kbs (vcd bitrate), that is why I was trying to do svcd vbr

Thanks
VCD4ME.

[ZippyP.]

Best to go with VCD in this case, that's what I do for my kids shows!

[vcd4me]

Thanks again
ZippyP,

Now vcd is limited to 1150
when I look at the bitrate calculator and change the audio bit rate vale to 128 and 1 80 minute svcd then the video bitrate will be 1223.

So I thought by doing a 2 pass vbr I could get better than the 1223?

Maybe I am not understanding vbr that well.
Can you tell me if this is right
min =the lowest bitrate
max= the highest
average = somewhere in between (what ever I specify).

As I understand it vbr puts more bits in the higher action scenes.
What I really don't understand is the average?

Thanks in advance
VCD4ME

[ZippyP.]

Thanks again
ZippyP,

Now vcd is limited to 1150
when I look at the bitrate calculator and change the audio bit rate vale to 128 and 1 80 minute svcd then the video bitrate will be 1223.

So I thought by doing a 2 pass vbr I could get better than the 1223?

Maybe I am not understanding vbr that well.
Can you tell me if this is right
min =the lowest bitrate
max= the highest
average = somewhere in between (what ever I specify).

As I understand it vbr puts more bits in the higher action scenes.
What I really don't understand is the average?

Thanks in advance
VCD4ME

The avg. bitrate sets the actual filesize. It's the average of the entire movie and it sets the total number of bits the encoder can use. It's the equivalent of the CBR bitrate. You're correct about min and max.


I can't go above the VCD spec. of 1150 on my player, it craps out. If yours works then go for it. For me if I can get the bitrate above 1000 then I just use CBR. You could set your average at 1223 and adjust your min and max to suit. You will hit higher maximum bitrates and in theory get better quality during high motion scenes. I suppose only testing will tell for sure.

Good luck! 8)