User guide

Tracktion 4 Reference Manual
189
The nal thing you need to do is to make the connections that allow the lters to talk to the outside
world. On the delay lter in Figure 9.3.2 you can see there are three pins on either side of the lter
icon. Just like with rack itself, the top-most pins are the MIDI input/output pins, and the two lower pins
are the left and right stereo channels. Making connections between pins is easy: just click on one of
the pins and drag a line to the other. If you create a connection you do not want, you can remove it by
simply clicking on the line and dragging it into an empty part of the rack canvas. Figure 9.3.3 shows the
stereo delay correctly connected to the rack pins. Practise dragging the connections until you can com-
fortably create this circuit.
Note: The only way to wire pins is for right-pointing pins to be connected to left-pointing pins, and
vice-versa. In addition, MIDI pins cannot be wired to audio pins. Feedback loops, where a rack feeds
into another rack, that in turn feeds back into the rst rack, should be avoided!
To create a true stereo delay effect, we need to set the right and left delay periods, so select the left
channel delay, or top-most lter icon, and choose 1/2 beat from the tempo menu (Fig. 9.3.4). Now se-
lect the other delay, and set the tempo to 1/4 beat.
At this point you have a fully working stereo delay. Try adding this rack lter to a track, and you
should hear the stereo delay effect. There is a lot more you could do with this rack to make it more in-
teresting, but we’ll come back to that at the end of this chapter.
Figure 9.3.3
Figure 9.3.4