Method processBottomSection

src/NoisePlethora.cpp:378–417

process section C

	// process section C
	void processBottomSection(const ProcessArgs& args) {

		float gritCv = rescale(clamp(inputs[GRIT_INPUT].getVoltage(), -10.f, 10.f), -10.f, 10.f, -1.f, 1.f);
		float gritAmount = clamp(params[GRIT_PARAM].getValue() + gritCv, 0.f, 1.f);
		float gritFrequency = 0.1 + std::pow(gritAmount, 2) * 20000;
		gritNoiseSource.setDensity(gritFrequency);
		float gritNoise = gritNoiseSource.process(args.sampleTime);
		outputs[GRITTY_OUTPUT].setVoltage(gritNoise * 5.f);

		float whiteNoise = whiteNoiseSource.process();
		outputs[WHITE_OUTPUT].setVoltage(whiteNoise * 5.f);

		float out = 0.f;
		if (outputs[FILTERED_OUTPUT].isConnected() && !bypassFilters) {

			const float freqCV = std::pow(params[CUTOFF_CV_C_PARAM].getValue(), 2) * inputs[CUTOFF_C_INPUT].getVoltage();
			const float pitch = rescale(params[CUTOFF_C_PARAM].getValue(), 0, 1, -5.f, +6.4f) + freqCV;
			const float cutoff = clamp(dsp::FREQ_C4 * std::pow(2.f, pitch), 1.f, 44100. / 2.f);
			const float cutoffNormalised = clamp(cutoff / args.sampleRate, 0.f, 0.49f);
			const float Q = 0.5 + std::pow(params[RES_C_PARAM].getValue(), 2) * 20.f;
			const FilterMode mode = typeMappingSVF[(int) params[FILTER_TYPE_C_PARAM].getValue()];
			svfFilterC.setParameters(cutoffNormalised, Q);

			float toFilter = params[SOURCE_C_PARAM].getValue() ? whiteNoise : gritNoise;
			out = svfFilterC.process(toFilter, mode);

			// assymetric saturator, to get those lovely even harmonics
			out = Saturator<float>::process(out + 0.33);

			if (blockDC) {
				// cascaded Biquad (4th order highpass at ~20Hz)
				out = blockDCFilter[SECTION_C].process(out);
			}
		}
		else if (bypassFilters) {
			out = params[SOURCE_C_PARAM].getValue() ? whiteNoise : gritNoise;
		}

		outputs[FILTERED_OUTPUT].setVoltage(out * 5.f);
	}

	// set which text NoisePlethoraWidget should display on the 7 segment display
	void updateDataForLEDDisplay() {