E-Mu orbit v2 사용자 설명서

Orbit V2 Operation Manual

A more complex type of filter is called a parametric filter or Swept EQ.
A parametric filter allows control over three basic parameters of the
filter. The three parameters are: Frequency, Bandwidth, and Boost/Cut.
The Frequency parameter (Fc on Orbit filters) allows you to select a
range of frequencies to be boosted or cut, the Bandwidth parameter
allows you to select the width of the range, and the Boost/Cut param-
eter (Q on Orbit filters) either boosts or cuts the frequencies within the
selected band by a specified amount. Frequencies not included in the
selected band are left unaltered. This is different from a band pass
filter which attenuates (reduces) frequencies outside the selected band.

The parametric filter is quite flexible. Any range of frequencies can be
either amplified or attenuated. Often times, several parametric
sections are cascaded (placed one after another) in order to create
complex filter response curves.

The Z-plane filter can change its function over time. In a simple
Z-plane filter, we start with two complex filter types and interpolate
between them using a single parameter. Refer to the diagram on the
following page.

Filters A and B represent two different complex filters. By changing a
single parameter, the Morph, many complex filter parameters can now
be changed simultaneously. Following along the Morph axis you can
see that the filter response smoothly interpolates between the two
filters.

Morph

A Filter

B Filter

Morph