Digital wavetable audio synthesizer with delay-based effects processing

A method of using a digital wavetable audio synthesizer to create delay-based audio effects, comprising the steps of:

• (a) generating a first digital audio signal from data stored in a first external wavetable memory;
• (b) storing said first digital audio signal in said synthesizer;
• (c) writing said first digital audio signal from said synthesizer to a second external wavetable memory;
• (d) reading said first digital audio signal from said second external wavetable memory a select time after step (c);
• (e) generating a first delay-based digital audio signal from said first digital audio signal read from said second external wavetable memory;
• (f) storing said first delay-based digital audio signal in said synthesizer;
• (g) writing said first delay-based digital audio signal from said synthesizer to said wavetable second external memory;
• (h) reading said first delay-based audio signal from said second external wavetable memory a select time after step (g);
• and
• (i) generating a second delay-based audio signal from said first delay-based digital audio signal read from said second external wavetable memory;
• wherein there is no requirement that said first digital audio signal and said first delay-based digital audio signal be written to a section in said first external wavetable memory used exclusively for storing said data.

A method of using a digital wavetable synthesizer to create delay-based audio effects, comprising the steps of:

• (a) generating a first digital audio signal from data stored in a first external wavetable memory;
• (b) storing said first digital audio signal in said synthesizer;
• (c) writing said first digital audio signal from said synthesizer to a second wavetable memory;
• (d) reading said first digital audio signal from said second external wavetable memory a select time after step (c);
• (e) generating a first delay-based digital audio signal from said first digital audio signal read from said second external wavetable memory;
• (f) if the last step was step (e), then storing said first delay-based audio signal in said synthesizer, or if steps (f)-(i) are being repeated, then storing said subsequent delay-based audio signal last generated in step (i) in said synthesizer;
• (g) writing said delay-based digital audio signal stored in said synthesizer in step (f) from said synthesizer to said second external wavetable memory;
• (h) reading said delay-based audio signal stored in said second external wavetable memory in step (g) from said wavetable memory, a select time after step (g);
• (i) generating a subsequent delay-based audio signal from said delay-based audio signal read from said second external external memory in step (h);
• and
• (j) repeating steps (f)-(i), as desired;
• wherein there is no requirement that said first digital audio signal and said delay-based digital audio signals be written to a section in said first external wavetable memory used exclusively for storing said data.

A digital wavetable audio synthesizer at least capable of (i) generating digital audio signals from data stored in a first external wavetable memory and (ii) creating delay-based effects, comprising:

• (a) a storage device for storing digital audio signals generated by said synthesizer from said data stored in said first external wavetable memory;
• (b) means for writing said digital audio signals stored in said storage device to a second external wavetable memory;
• and
• (c) means for reading said digital audio signals from said second external wavetable memory a select time after said signals are written to said second external wavetable memory by said means for writing;
• wherein there is no requirement that said digital audio signals be written to a section in said first external external wavetable used exclusively for said data.

A digital wavetable audio synthesizer capable of creating delay-based effects, comprising:

• (a) one or more accumulators for accumulating digital audio signals generated by said synthesizer;
• (b) a temporary storage device for storing digital audio signals accumulated by said one or more accumulators;
• (c) means for writing said digital audio signals stored in said temporary storage device to an external wavetable;
• and
• (d) means for reading said digital audio signals from said external wavetable a select time after said signals are written to said external wavetable by said means for writing;
• wherein there is no requirement that said digital audio signals be written to a section in said external wavetable used exclusively for storing digital audio signals to be delayed.

A digital wavetable audio synthesizer capable of creating delay-based effects, comprising:

• (a) a plurality of accumulators for accumulating digital audio signals generated by said synthesizer;
• (b) a temporary storage device for storing digital audio signals accumulated by said plurality of accumulators;
• (c) means for writing said digital audio signals stored in said temporary storage device to an external wavetable;
• and
• (d) means for reading said digital audio signals from said external wavetable a select time after said signals are written to said external wavetable by said means for writing;
• wherein there is no requirement that said digital audio signals be written to a section in said external wavetable used exclusively for storing digital audio signals to be delayed.

A digital wavetable audio synthesizer at least capable of (i) generating digital audio signals from data stored in a first external wavetable memory and (ii) creating delay-based effects, comprising:

• (a) one or more accumulators for accumulating said digital audio signals generated by said synthesizer from said data stored in said first external wavetable memory;
• (b) a temporary storage device for storing digital audio signals accumulated by said one or more accumulators;
• (c) means for writing said digital audio signals stored in said temporary storage device to a second external wavetable memory;
• and
• (d) means for reading said digital audio signals from said second external wavetable memory a select time after said signals are written to said second external wavetable memory by said means for writing;
• wherein there is no requirement that said digital audio signals be written to a section in said first external wavetable memory used exclusively for storing said data.

A digital wavetable audio synthesizer at least capable of (i) generating digital audio signals from data stored in a first external wavetable memory and (ii) creating delay-based effects, comprising:

• (a) a plurality of accumulators for accumulating digital audio signals generated by said synthesizer from said data stored in said first external wavetable memory;
• (b) a temporary storage device for storing digital audio signals accumulated by said plurality of accumulators;
• (c) means for writing said digital audio signals stored in said temporary storage device to a second external wavetable memory;
• and
• (d) means for reading said digital audio signals from said second external wavetable memory a select time after said signals are written to said second external wavetable memory by said means for writing;
• wherein there is no requirement that said digital audio signals be written to a section in said first external wavetable memory used exclusively for storing said data.

A digital wavetable audio synthesizer at least capable of (i) generating digital audio signals from wavetable data and (ii) creating delay-based effects, comprising:

• (a) a storage device for storing digital audio signals generated by said synthesizer from said wavetable data;
• (b) means for writing said digital audio signals stored in said storage device to an external wavetable;
• and
• (c) means for reading said digital audio signals from said external wavetable a select time after said signals are written to said external wavetable by said means for writing;
• wherein there is no requirement that said digital audio signals be written to a section in said external wavetable used exclusively for storing said wavetable data.