1. First steps in Reaktor Core - Native Instruments

You don’t have any control over the place where automatic feedback resolution
will occur. It occurs on an arbitrary signal wire in the feedback loop. It is not
even guaranteed that the resolution will always occur on a particular wire—it
could change in the next version of the software, it could change in response
to a change elsewhere in the structure, and it could be different the next time
you load the structure from disk.
Hence, automatic feedback resolution is meant for the structures for which
it’s not important where exactly the resolution occurs. For example, such
structures might be built by users who are not deep enough into DSP to understand
these problems. Automatic feedback resolution allows them to still
get reasonable results.
If you need to have precise control over feedback resolution points you
can achieve that by explicitly inserting Z^-1 modules in your structures.
These modules will formally explicitly eliminate the feedback and automatic
resolution will not be needed.
Here is a version of the above structure with a Z^-1 macro inserted (it can be
found in Expert Macro > Memory submenu):
As you can see, the big orange Z mark is gone now. Also note that the 1-sample
delay point is different from the one which was automatically inserted (the
automatic one was on the wire going from the Adder output to the Multiplier
input and now it’s on the wire going from the Multiplier output to the Adder
input).
The meaning of the second input of the Z^-1 module will be explained
later. Typically you would just leave it disconnected.
Feedback on OBC and other types of non-signal connections (which will be
introduced later) does not make any sense and, therefore, is not allowed. Should
feedback loops occur that do not have any signal wires in them, one of the
92 – REAKTOR CORE