User Guide

Optimization

ptimization may help performance, especially when dealing with full frame rate video (such as

VD in high definition).

here are several parameters which determine the speed with which VirtualDJ decompresses

d of the

raphics processor (GPU), the speed of the main central processor (CPU), and the access

peed of the hard disk.

nother parameter which largely influences performance is the type of file. An MPEG1 format

le is much faster to decompress than a VOB format file. In a similar way, a file with a 320x240

solution is much faster to decompress than a file with a 720x576 resolution.

alDJ will

ly decompress the video which is visible. If both video files are shown in the mix window,

are perform quicker and also allows

to perform better on slower machines. However, this may result in small jolts at the time of

tions.

nd finally, we recommend the use of an output resolution no greater than the resolution of the

ideo files. If using higher resolutions, low-resolution content will not look any better but will be

puter resources. A resolution of 800x600 should be sufficient if using high-

uality DVD video.

In general, video mixing is much heavier in computer resources than audio mixing so certain

and displays video content – the size of memory present on your video card, the spee

By default, VirtualDJ decompresses only the content which is visible in the video mix window.

This means that if there are two clips which are playing but only one is visible, Virtu

then VirtualDJ will decompress both. This makes the softw

transitions. If the computer configuration is sufficiently powerful, we recommend checking the

“Decode while hidden” box in the “Video” settings in the “Config” menu to obtain more fluid

transi

Also, if using a full-screen output to display the video mix, it is more effective to use a graphics

card which has two outputs, than using two separate cards.

using more com