encoding from 30fps causes stutter

[Leviathon]

somewhat confused...I download an Avi, and when I check the fps it tells me that it is 30fps...which plays fine on my pc, BUT..I encode through TMPG into a VCD and then write to disc to watch on my standalone player...yet again..BUT...its stuttery....almost like there is a quick sudden pause every few frames. The Audio is fine, but the movie does this encoded in 23.976, 25 or 29.97 fps..what is going wrong ???

How can I encode it and loose the jitters ??? its driving me insane...Its a good job I'm not epileptic.

[aknox]

I'd be interested if someone could tell me a better way of doing it, but this is what I'd do:


Extract the audio with virtualdub.

use WLA.exe (wave file length adjust) using ratio 3000 2997 to lengthen the audio

then use AVI frame rate changer to make the AVI play at 30 fps
http://www.am-softhome.com

The AVI then has audio which is out of synch, so you use your lengthened audio file as the input source.

This means you have converted the AVI to 29.97 which should encode to a jitter-free file for your NTSC player.

(I use the same method to convert 23.976 fps NTSC files to play at 25fps for my PAL player. Otherwise you get tiny jitter effects.)

[Leviathon]

Call me stupid..I know i know...but how do you use wave file length adjust...I downloaded, and put the exe in my windows system and system32 file...but then what...if i click on it a DOS page flashes up them vanishes again...what am I missing...HELP

[aknox]

In short, you need to run it from the DOS prompt.

More detailed instructions follow:

Put WLA.exe in the same directory as your wav file

Then go to MS-DOS prompt

Change directory using the CD command
e.g. type CD "c:\my documents"

Then type WLA and it'll show you all the options.
In this particular case you'll want these options:

WLA input.wav output.wav -r 3000 2997 -n

(There are pros and cons for using the -n, which I won't go into).

Anway, that should do the trick.