| 摘要 |
In high-quality musical instruments, the octave tones have to be generated with octave beats in order for the intervals to be tuned and for multichords to be heard. This has been solved to date in electronic organs by means of expensive single-tone oscillators. In this invention, a plurality of identical divider arrangements are synchronised from a plurality of input frequencies in the <12>2+x<1/2> half-tone spacing, and the octaves are deliberately extracted from different divider arrangements, thus resulting in random frequency deviations relative to the tempered <12>2+x<1/2> scale. Higher tuning of the octaves and frequency deviation are a function of <12>2+x<1/2>. Six of the identical divider arrangements permit the generation of 63 tones throughout and represent 63 individual tone oscillators in musical terms. The same divider arrangements can be used with appropriately changed input frequencies for fifth and octave couplers. In musical terms, 8- and 10-chord electronic organs are a fallacy. This invention provides conditions as for pipe organs or accordions; the fullness of tone restricts one to 4 to 6 chords. This type of tone generation renders special organ amplifiers unnecessary for driving high peak voltages.
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