1.ratio modulation: this quickly allows
one to determine what note any ratio
above a given ratio is. By entering 1/1 for the first fraction, any
fraction
in cents, frequencies, or whole numbers can be reduced. However, only
proper
fractions come out clearly. Also, all intermediate values are displayed.
2.ratio to cents: convert a ratio to cent
values.
3.intertone: calculates the ratio between
two given ratios.
4.string position: will return octave one
and octave two values for any
string length and ratio. Thus, notes are easily found on string
instruments.
Very useful for templates for slide guitars, monochords, and harmonic
kannons.
5.complement: returns the inverse ratio.
Most useful for monochords and kannons.
6.demodulation: used to calculate ratios
moving in descending frequency.
7.exit: “return to DOS” (note: the
earliest form of this program was pre-dos,
however this program seems to work with all versions of windows, so,
apple
users beware!)
Source code published in XENHARMONIKON 13,
Spring 1991
this program provided as agiprop by
NOVOSONIC PRODUCTIONS.
One final note. This program follows the
convention for musical ratios set up
by Harry Partch in GENESIS. That is ratios need to
be entered
in the specific numerator/denominator form, 1/1,
5/4, 4/3, 3/2
7/4, 15/8, 2/1. The program won’t except forms
like ¾,or 3/1.
go here for source code in
basic