Is the Preload working like a delay?

[Quantos]

Hello everyone,

I have some trouble with the interleaving-settings when I try to change
VBR-Mp3 into CBR-Mp3 (by first converting audio into Wav and then reencoding it
into CBR-Mp3). I use for all of this Vdub-mod. Now, do I have to enter
the Interleave/Preload/Skew numbers of the source material (as shown
by Gspot; Avi-Mux shows "delay 0 ms" with all of my files) at some point
in the process ? When do I have to use/uncheck the Interleaving-
properties of Vdub in the process? Where and when is the "interleaving information" saved
in the Avi and how do I save it to the final CBR-Avi in order to avoid sync-issues?
The Gspot numbers for Interleave and Preload of the output-files are changed compared to
the source-ones. When did it happen? Does that
mean the delay and therefore the sync of the movie
is affected? What is the difference between delay, preload,
interleave? :confused:


The question in a nutshell:

If I have a perfectly sync movie as source, how can I save the audio
into wav, mux it with the video, edit the muxed video and finally
reencode the edited material into CBR-Mp3 without loosing sync?


I have already posted the problem in the newbee-section, still, it is a
"audio"-problen, isn't it (so please forgive potential double-posting :)).


Thanks

Quantos

[Quantos]

The difference of the Preload and Interleave numbers of the Vbr-files
and the Cbr-Files are most of the time only marginal:

e.g. 480/2 to 500/1 (ms/frames).

I read that only a skew of 1/10s (100ms) would be noticeable (well,
maybe some are more/less sensitive), but then, I'm not sure If I'm
comparing peares to apples because this 100ms-barrier
relates to the delay (skew), and not to Preload/Interleave, right?
And then there is the change of the Interleave-method itself,
changing from "Aligned on interleaves" to "Split across interleaves".

Well, I really used the search/guides here at doom9 and over at
videohelp.com and hydrogen-audio.com, but the information there
is most of the time in connection with ac3-to anything conversions.


Thanks for your help!

Quantos