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May 10, 2019 19:43
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easy phase distortion oscillator
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| phasor -> variable angle unipolar triangle function -> * 0.5 -> cosine lookup | |
| adjust the angle on the triangle to morph between sine and pseudo-saw | |
| can offset saw phase and subtract to get a psuedo-square (as per ususal) | |
| triangle function: | |
| angle range 0 to 1 with 0.5 being symetrical | |
| if (phase <= angle) phase / angle | |
| if (phase > angle) phase - 1 / angle -1 | |
| by scaling by 0.5 we get the first half of the cosine, and then that same first half but in reverse (which is == to the 2nd half) |
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