Multi-source switched sequence oscillator waveform compositing system
The present disclosure is directed to multi-source switched sequence oscillator waveform compositing system that allows for real-time modulation of a specific fraction of the cycle period within the output waveform, resulting in a greater and more dynamic number of waveform variations than simple assembly of various shapes.
1. A non-transitory computer-readable medium having instructions stored thereon that, when executed by a processor, cause the processor to generate a phase coherent concatenated waveform at audio rate from a switched sequence of multiple source oscillators, the generation comprising:
receiving performance data;
setting a switch compositor with at least two switcher divisions;
setting phase positions for each switcher division;
setting a number of source oscillators corresponding to the number of switcher divisions;
setting frequency and phase properties for each source oscillator and the switch compositor based on performance data input;
starting a master pitch clock that is synchronized with both the source oscillators and the switch compositor at a rate, based upon the performance data input, that maintains phase and pitch coherence with the source oscillators;
selecting sample frames from each source oscillator;
traversing each respective switcher division at the rate set by the master pitch clock;
maintaining constant pitch and phase coherence of the source oscillators; and,
outputting a phase coherent concatenated waveform.
2. A system for generating a phase coherent concatenated waveform from a switched sequence of multiple source oscillators, the system comprising:
a memory configured to store a multi-source switched sequence oscillator waveform compositing software;
a processor configured to execute the multi-source switched sequence oscillator waveform compositing software stored on the memory;
wherein the multi-source switched sequence oscillator waveform compositing software is configured to receive performance data input;
wherein the multi-source switched sequence oscillator waveform compositing software is further configured to set a switch compositor with at least two switcher divisions;
wherein the multi-source switched sequence oscillator waveform compositing software is further configured to set phase positions for each switcher division;
wherein the multi-source switched sequence oscillator waveform compositing software is further configured to set a number of source oscillators corresponding to the number of switcher divisions;
wherein the multi-source switched sequence oscillator waveform compositing software is further configured to set frequency and phase properties for each source oscillator and the switch compositor based on performance data input;
wherein the multi-source switched sequence oscillator waveform compositing software is further configured to start a master pitch clock that is synchronized with both the source oscillators and the switch compositor at a rate, based upon the performance data input, that maintains phase and pitch coherence with the source oscillators;
wherein the multi-source switched sequence oscillator waveform compositing software is further configured to select sample frames from each source oscillator;
wherein the multi-source switched sequence oscillator waveform compositing software is further configured to traverse each respective switcher division at the rate set by the master pitch clock;
wherein the multi-source switched sequence oscillator waveform compositing software is further configured to maintain a constant pitch and phase coherence of the source oscillators; and,
wherein the multi-source switched sequence oscillator waveform compositing software is further configured to output a phase coherent concatenated waveform.
3. A method for generating a phase coherent concatenated waveform, the generation comprising:
receiving performance data;
setting properties of at least two source oscillators;
setting a number of switcher divisions corresponding to the number of source oscillators;
synchronously clocking the oscillators and switcher rate such that they are coupled in both phase and frequency;
selecting sample frames from the source oscillators; and,
outputting a phase coherent concatenated waveform.
4. The method of claim 3 wherein the frequency is less than 20 Hz.