| 摘要 |
A rhythm controller for producing a selected number of clock pulses for a musical beat interval comprising an oscillator, first and second counters coupled to the oscillator and a divider coupling the first counter to the oscillator to reduce the output frequency of the oscillator to the first counter. Input means generates a pulse at the onset of each beat interval and enables the first counter to count the divided output of the oscillator for a first beat interval. A comparator receives the count of the first counter, compares the count for the first beat interval with the count of the second counter and produces a clock pulse upon a coincidence. The clock pulse resets the second counter which continues to recount and to be reset after each coincidence until the end of a beat interval, thereby causing a selected number of clock pulses, i.e., a timebase, to be produced for the first beat interval. A divider is coupled to the output of the comparator to produce one or more additional selected numbers of clock pulses (timebases) for each beat interval. Pulse shaping means can be coupled to the divider to produce a sequence of rhythm envelopes triggered by the clock pulses. Selection means coupled to the divider means is also provided to select the desired number of clock pulses (timebases) for a musical beat interval.
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