1. First steps in Reaktor Core - Native Instruments

If for whatever reason the Denormal Cancel module does not work for
your structure, you are, of course, free to use your own denormal canceling
techniques. But the problem may be that a technique that works on
one platform sometimes may not work on another, whereas we are going
to adapt the built-in DN Cancel algorithm to each supported platform.
So whenever possible, try to use the DN cancel module. We will even
consider building alternative algorithms into this module – feel free to
discuss this with us on the support forum.
Some CPUs offer an option to violate the IEEE standard by disabling the
production of denormal numbers, forcing the denormal results to zero.
Because Reaktor Core structures are meant to be platform independent,
it’s strongly advised to always take care of denormal canceling in your
structures, even if your particular system does not suffer from them.
Because one of the most typical situations for the denormals to appear are
exponentially decaying feedback loops, and because most of feedback loops
in audio processing are exponentially decaying (including but not limited to
filters and feedback structures with delays), we decided to build denormal
canceling into the standard Z^-1 macro.
As you remember, the inside of this macro looks like this:
Now you probably can tell what the Denormal Cancel module is doing in there.
Because you would often use the Z^-1 macro inside feedback structures,
there’s a good possibility of denormals occurring. We therefore decided to put
the DNC module into the Z^-1 macro structure.
There’s another version of this macro called Z^-1 ndc which does not perform
denormal canceling (ndc = no denormal cancel). You can use it in the structures
that you are sure do not generate denormals (for example, FIR filters):
100 – REAKTOR CORE