Diagrams vox humana on kimball reed organ

DIAGRAMS VOX HUMANA ON KIMBALL REED ORGAN GENERATOR
DIAGRAMS VOX HUMANA ON KIMBALL REED ORGAN SERIES

Over the long period of development of pipe organs, organ reed pipes have been successfully designed to be highly imitative of certain orchestral voices. Reed pipes generate tones in an entirely different manner, the primary source of tone being a vibrating brass reed which is coupled with a resonator for determining the characteristics of the tone. While there are almost countless varieties within each family, flue pipes are all essentially whistles, with the differences in tone color between one flue rank and another being determined by the relative dimensions of corresponding pipes, the material of which they are constructed, whether the pipes are open or stopped, and other factors. Any particular rank can further be characterized as being made up of 'flue' pipes or 'reed' pipes. Pipe organs usually include a separate set or rank of pipes for each stop of the organ thus, there might be one rank of 61 Diapason pipes (including one pipe for each note), and another rank of 61 Flute pipes, and another of 61 Trompette pipes, etc. Over the centuries wind operated pipes have been developed to produce a wide variety of musical sounds, the pipe organ being a common application thereof. This invention relates to electrical musical instruments, and more particularly to electronic circuit means for producing tonal effects highly imitative of the speech characteristics of certain organ reed voices such as Vox Humana, Kinura, Musette and Krummet.

DIAGRAMS VOX HUMANA ON KIMBALL REED ORGAN SERIES

Non-linearly combining tone signals representing corresponding notes from two or more different octaves for producing a repeating series of pulse groups separated by the period of the lowest frequency tone signal included in the combination, which groups each contain a short sequence of two or more pulses, andДЇiltering said repeating series of pulse groups in a sharp cutoff low-pass filter. Generating a plurality of octaves of tone signals, one for each note of a musical scale, each consisting of square wave pulses phase-locked to the others, A method for generating sound signals which when reproduced imitate the speech characteristics of Vox Humana and similar reed organ pipes, comprising the steps of: Apparatus according to claim 5, wherein said filter circuit means has a roll-off rate of substantially 24db per octave.Д§.

Apparatus according to claim 1, wherein said filter circuit means has a cutoff frequency of about 2KHz.Д¦. Apparatus according to claim 1, wherein said combining means is operative to combine two tone signals of frequencies f and 4f to produce a repeating series of pulse groups each containing a short series of two pulses.ДҐ. Apparatus according to claim 1, wherein said combining means is operative to combine two tone signals of frequencies f and 8f to produce a repeating series of pulse groups each containing a short series of four pulses.Д¤. Apparatus according to claim 1, wherein said combining means is operative to combine three tone signals of frequencies f, 4f and 8f to produce a repeating series of pulse groups each containing a short sequence of two pulses.ДЈ. Player-controlled gate circuit means, one for each note, for selecting desired ones of said repeating series of pulse groups and coupling the same to said filter circuit means.Дў. Means for non-linearly combining tone signals representing corresponding notes from two or more different octaves for producing a repeating series of pulse groups separated from each other by the period of the lowest frequency tone signal included in the combination, which groups each contain a short sequence of two or more pulses,ДЄt least one low-pass filter circuit means, said filter circuit means having a sharp cutoff and a rapid rate of roll-off above its cutoff frequency, and

DIAGRAMS VOX HUMANA ON KIMBALL REED ORGAN GENERATOR

In an electronic organ including a tone generator for producing a plurality of octaves of tone signals, one for each note of a musical scale, each consisting of square wave pulses phase-locked to the others, apparatus for generating sound signals which upon reproduction imitate the speech characteristics of Vox Humana and similar reed organ pipes, said apparatus comprising:

Diagrams vox humana on kimball reed organ