User Guide

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Overclock – This setting can make your computer run faster (especially on laptops) and therefore be
compatible with lower latencies.
Scratch – Allows for adjustment to how VirtualDJ reacts to scratch motions
Optimize for:
Quality – VirtualDJ will more accurately represent how a scratch sounds when moving
the virtual record back and forth
Latency – VirtualDJ reacts as quickly as possible but might result in a somewhat more
metallic sound.
Scratch algorithm:
Simple Algorithm – adds no computational overhead, and will use a simple
interpolation algorithm to compute the scratch sound
Enhanced Algorithm – uses an advanced algorithm that mimics the movement of the
needle on the grooves, to obtain the best scratch sound possible. A filter size of 11 gives
the best quality/CPU ratio, producing a very good quality while keeping a low
computational overhead.
48kHz <-> 44kHz
Describes how VirtualDJ will interpolate between the 48kHz and 44.1kHz sample rates. Choosing
“Basic Interpolation” will save some system resources and could improve performance. For better
quality interpolation, choose “Lowpass Filter”. 11 taps is the best quality/CPU ratio.
NOTE: Most commercially available music is recorded at 44.1kHz (including MP3s) so it is a
good idea to set your soundcard’s output to 44.1kHz. This will prevent your soundcard from
having to interpolate to different sample rates and will improve performance. Unless you have
worked with different sample rates before, the 44.1kHz setting should be default for your
soundcard)
PERFORMANCE SETTINGS