4.3 Postprocessing the video; using Gordian Knot
Gordian Knot is a very nice tool for processing your dvd-rips, but it is not very suitable for processing analog captures. This is a consequence of the fact that processing dvd-rips and processing analog captures is very different, and Gordian Knot is automated for processing dvd-rips. If you still want to use Gordian Knot for your analog captures (for doing the compressibility test for example), I suggest the following. Make the AviSynth script as described in the AviSynth part, and save the audio as a wave-file (in the file-tab). Open the script in Gordian Knot (A). A ".d2v" tab shows up. Don't close it, although we will change it in a later stage.

B: Select the codec you want to use. XviD can only be used in GKnot 0.28, which is used here.
C1: Select the target file size of your encoding.
C2: Instead, you can also select a number of CD's and the size of a CD.
D: Select the bitrate of your MP3 you want to create (we choose a bitrate of 128 kBit/s here).
E: Set the Interleaving & AVI-Overhead to MP3.

Go back to the ".d2v" tab, and select "Save & Encode". A "Save .avs" tab will show up, where you can change your avs script:

Forget about the options (since we won't use them), and press "Edit":

Remove all the lines, except the one where the avs file is loaded. Press "Save", and give the script a name (gknot.avs, for example). Now you are back in the ".d2v"-tab. Press "Save & Encode" again.

Select "Use 5%" in the Compressibility Check, and press "Now" to start it. After it is finished, you will get something like this:

For more information on the Compressibility Check (on its use, and its meaning) check out the guides on doom9.org. The percentage must be between 40%-50% for acceptable quality. If it is too low, you can higher the bitrate, lower the resolution (in your original script) or apply more smoothing. (Ok, we used a value which is to high here.) Go to the Encoder-tab and press "Add Job"

Select your avs script (which was saved as gknot.avs here), and give your final avi a name (which is left gknot.avi here). Go to the XviD-tab and configure your XviD settings. More info can be found in the guides on doom9.org (and the link below for DivX5 settings). Select the "Audio 1"-tab:

Make sure that the correct wave file is selected. Select "Finally Mux" and MP3 using a bitrate of 128 kBit/sec. Go back to the video tab (XviD-tab here) and press "Add Job to Encoding Queue". The encoding will start ...

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Last edited on: 05/11/2003 | First release: n/a | Author: Wilbert | Content by Doom9.org