Acclaim Lighting ART IO - Manual (Page 19)

Recorder
In the previous chapter you've read that you can record a static lighting scene by capturing it into a Cue,
however, in some cases it will be required to record a dynamic lighting scene that is changing over time.
Perhaps you need to record pan/tilt shapes for moving lights or record graphical effects on a LED
matrix.
For these situations the Art SSC offers the DMX-512 and Art-Net recording functionality. With it you can
store both static and dynamic DMX data.
Capacity
There are 16 memories that can hold a recording. When recording all 1,024 channels are stored, even
though some channels might not be used and remain at zero. The Art SSC utilizes a compression
technique to filter out all channels that do not change. Therefore it is not possible to exactly state the
maximum duration a memory can hold; it depends on the DMX data itself. When many channels change
often the compression is less effective. When only a few channel change a little the compression is very
effective.
Furthermore, the refresh rate setting will determine how many samples of the data are taken per
second and stored in memory. This setting varies between 1 and 40 frames per second. 40 Hz gives
maximum quality in terms of smooth dimming curves. 5 Hz is quite a low value but very useful for
recording very slow DMX changes that in themselves might not change faster anyway. Often a setting
of 20 Hz will do fine, while allowing for twice as long recording as a 40 Hz setting.
Theoretically, the memory will hold for at least XXX seconds data in the worst-case situation, i.e. all 1,024
channels change each frame, recorded at 40 Hz. More realistic, a set-up using 100 dimmer channels
changing regularly, recorded at 30 Hz, may last XXXXX minutes.
By default, the recorder has 16 memories. You can reduce the number of memories in the settings page.
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