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Oscillator sync is a feature in some synthesizers with two or more VCOs, DCOs, or "virtual" oscillators. As one oscillator finishes a cycle, it resets the period of another oscillator, forcing the latter to have the same base frequency. This can produce a harmonically rich sound, the timbre of which can be altered by varying the synced oscillator's frequency. A synced oscillator that resets other oscillator(s) is called the master; the oscillators which it resets are called slaves. There are two common forms of oscillator sync which appear on synthesizers: Hard Sync and Soft Sync. According to Sound on Sound journalist Gordon Reid, oscillator sync is the least understood feature for many users of a synthesizer.
Electronic device for generating random numbers
Electronic Device for Random Number Generation This description relates to an electronic device (1) comprising: a first ring oscillator (RO1) and a second ring oscillator (RO2); a synchronous flip-flop (FF); a counter (COUNTER); a first circuit (Nm CTRL) configured to modify a period of at least one of the two oscillators (RO1, RO2) so that an average difference between the periods of the two oscillators is equal to a target difference; and a second circuit (PROCESS) configured to: initialize a value of an integer K, calculate sums (VAL) of K successive values of the counter (COUNTER), calculate an Allan variance (VAR) on the calculated sums (VAL), and set K to its current value if the calculated variance is greater than a first threshold and increment K otherwise. Figure for the abstract: Fig. 1
Owner:COMMISSARIAT A LENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES