This section describes gmeteor's simple interface. The
interface consists of a library of Scheme functions that you can call,
and of some global variables that you can access. For ease of
reference, we subdivide the functions into three sets. The first set of
functions (see Filter Parameters) lets you specify filter parameters
such as the filter length, symmetry, and sampling frequency. The second
set (see Specifications) is used to specify the desired bounds on
the frequency response. The third set (see Miscellaneous Commands)
contains miscellaneous functions that control the format of the output
and similar parameters.