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24th Aug 2009

There’s a certain point where it becomes very hard to demonstrate to a large audience what you do. As we strive towards the limits of the extreme, it becomes more and more difficult to demonstrate in a simple way the results of our work.

Last couple of month, we’ve been working very intensively on the new release of MediaMaster (version 1.1 – which should be out very soon). One of our goals for this release was to improve radically our engine to be able to run a couple of movies at monitor rate with no frame drops.

14th Aug 2009

LoopLight sent us this video from what they did at Nature One festival on the “House of House” floor.

They have setup a very creative system to trigger visuals involving a NuVJ, a video camera, a MediaMaster controlled from a GrandMA console and.. a custom controller made of a simple plexiglass panel with duct tape, the so-called “PixelFucker controller”..

06th Aug 2009

Here’s a quick tutorial on how to use the LED Mapper extension to map the output from ArKaos MediaMaster to a wall of 6 Schnick-Schnack C100 LED Panels. As you will see, it’s pretty self-explanatory and really easy to achieve..

There is no specific hardware necessary to convert the video signal for the LED Panels, ArKaos MediaMaster outputs the signal in ArtNet through an Ethernet cable that goes to a network switch connecting the 6 C100 panels together.

04th Aug 2009

Back in March we featured a show report on the ArKaos web site about the installation made by lighting designer Sebastien Jurkowski at the Zouk Club in Kuala Lumpur.

This impressive setup in a not less impressive venue was the very first time our brand new media server software ArKaos MediaMaster was used in a Club installation and it proved to be a very good and reliable solution since it is now the subject of a 3 pages article and interview in mondo*dr magazine, the international publication for technology in entertainment.

08th Jul 2009

When it comes to media playback, at ArKaos we always fight to get the best out of current computer configuration.

When you are in the show industry and try to find out the best way to compress your content it’s still a little bit of black magic. While some codec are able to compress video very well they are heavy to handle for the machines, even more, the codec that does the best job at compressing while keeping a good quality such as H264 are very bad when you need to scratch your media.

07th Jul 2009

Here’s a quick tip for PC users: if you use a multi-core/multi-processor machine with GrandVJ orMediaMaster, you will benefit a lot to use codecs that are played through our FFMPEG player rather than through QuickTime.

This is due to the fact that on a PC, the internal QuickTime decoding routines are not capable of multi-threading, which makes it impossible to decode frames in parallel. So even if one layer can run properly using QuickTime libraries, the more layer you pile up, the more the decoding bottleneck will show up.

30th Jun 2009

When your frame rate goes down, and the video starts lagging, it is important to be able to analyse where it can come from. Today we’re going to look at some information we can use to troubleshoot this.

Roughly, the way our application works is the following: at each pass, we read  a video frame from the disk if needed, decode it and then send it to the GPU (the Graphic card’s CPU) together with all blending and effect operations. Then we ask the graphic card to flush all operations (that is actually processing all pending graphical instructions) and present it to the display.

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