Multi-source switched sequence oscillator waveform compositing system

• US 10,262,646 B2
• Filed: 01/09/2018
• Issued: 04/16/2019
• Est. Priority Date: 01/09/2017
• Status: Active Grant

• Current Assignee: Media Overkill, LLC
• Original Assignee: Media Overkill, LLC
• Inventors: Rampley, Robert, Yamada, Taiho
• Primary Examiner(s): Donels, Jeffrey
• Application Number:
  US15/866,405
• Publication Number:
  US 20180197519A1
• Time in Patent Office: 462 Days
• Field of Search: 84622
• CPC Class Codes: G10H 1/0066 using a MIDI interface
• CPC Class Codes: G10H 1/06 Circuits for establishing the harmonic content of tones , or other arrangements for changing the tone colour
• CPC Class Codes: G10H 1/08 by combining tones G10H1/14, G10H1/16 take precedence; chord G10H1/38
• CPC Class Codes: G10H 5/12 using semiconductor devices as active elements
• CPC Class Codes: G10H 7/002 using a common processing for different operations or calculations, and a set of microinstructions (programme) to control the sequence thereof

Abstract

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.

Claims

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.