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comparison projects/d-box/FeedbackOscillator.cpp @ 51:4f8db16f17b5 newapi

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D-Box updates; should work as old version did
author andrewm
date Sat, 30 May 2015 13:25:51 -0500
parents be427da6fb9c
children
comparison
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50:be427da6fb9c 51:4f8db16f17b5
60 // Returns true if the wavetable needs rendering 60 // Returns true if the wavetable needs rendering
61 int FeedbackOscillator::process(float input, float *output) { 61 int FeedbackOscillator::process(float input, float *output) {
62 float outFloat = coeffs[COEFF_B0] * input + coeffs[COEFF_B1] * lastInput - coeffs[COEFF_A1] * lastOutput; 62 float outFloat = coeffs[COEFF_B0] * input + coeffs[COEFF_B1] * lastInput - coeffs[COEFF_A1] * lastOutput;
63 int requestRenderLength = 0; 63 int requestRenderLength = 0;
64 64
65 *output = outFloat; 65 if(outFloat < -0.5)
66 *output = 0;
67 else if(outFloat > 0.5)
68 *output = 1;
69 else
70 *output = outFloat + 0.5;
66 71
67 if(canTrigger && outFloat > 0 && lastOutput <= 0) { 72 if(canTrigger && outFloat > 0 && lastOutput <= 0) {
68 triggered = true; 73 triggered = true;
69 requestRenderLength = wavetableWritePointer; // How many samples stored thus far? 74 requestRenderLength = wavetableWritePointer; // How many samples stored thus far?
70 if(requestRenderLength < 4) 75 if(requestRenderLength < 4)