We've had the following user feedback from users of our t@b encoder frontend: "When the AVI output is viewed with other programs (WinAmp and Jetaudio) then the video appears to be upside down". We've checked several programs and run into the same problem also with (Real)Producer.

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It's a jungle out there. t@b currently builds the linux version of ZS4 on a SUSE 9.2 box, the very same box we use for capturing editing video. It turns out that the linux binaries do not necessarily run on other Linux flavours (Ubuntu related complaints were the latest). So we've made a bunch of changes/additions/fixes which hopefully will help in making ZS4 run on you very own Linux box. Just read on....
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This image shows typical freeze frame artifacts as experienced when looking at a single frame of something/somebody in motion. This article examines a few issues about interlacing and progressive scan.

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ZS4 is based on a 32Bit RGB compositing engine. This means that every pixel (about a half-million per DV frame) is composed of 4x8Bits per pixel where 24 bits (the Red, Green and Blue values) indicate the actual color and the Remaining 8 Bits describe Transparency/Opacity. This article will go into some detail into the mechanics of Compositing with the use of opacity/transparency.

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As of version 0.942, ZS4 supports FreeFrame effect filters. The FreeFrame plugin-in architecture enables 3rd party developers to create (and sell) functionality for ZS4. Here are a few remarks about FreeFrame plugins for ZS4 end users. ...read more

ZS4 so far is a two dimensional video compositing engine with timeline controls and a large set of bundled video effects. it is, however, possible to dynamically arrange the depth (z-position) of component video streams. This article assumes that you are familiar with the default zs4 rendering strategy, where the bottom (child) track in the project treeview is rendered into the parent (mixer) track first and the top child is rendered last which results in the basic compositing strategy. ...read more

Lately i've been running more and more into those things: Issues of linearity. Like many things, this may be a matter of "definition". This article is atempting to illustrate the concept of (non-) linearity in general and, more importantly, from a zs4 perspective. ...read more

It has always been our intent to use ZS4 for the production of t@b music videos. This document will outline some thoughts pertaining to the production methods which we are employing/testing. ...read more

t@b is producing ZS4 (Zweistein, level 4) with a team of exactly two people. We have produced a side-kick program, called tabtrans (t@b gui translator) which allows anybody on linux or windows to translate our software to their local language. Read this article if you are interested in the little we can offer somebody who assists us by creating a foreign language translation.
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It is, of course, possible to drastically alter the appearance of the zs4 (ZweiStein, Generation 4) by altering skin file/directory data. Here's some (hopefully) helpfull information on the topic. (valid starting with version 0.926)...
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