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/**
bespoke synth, a software modular synthesizer
Copyright (C) 2021 Ryan Challinor (contact: awwbees@gmail.com)
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
**/
//
// FormantFilterEffect.h
// Bespoke
//
// Created by Ryan Challinor on 4/21/16.
//
//
#pragma once
#include "IAudioEffect.h"
#include "DropdownList.h"
#include "Checkbox.h"
#include "Slider.h"
#include "BiquadFilter.h"
#include "RadioButton.h"
class FormantFilterEffect : public IAudioEffect, public IDropdownListener, public IFloatSliderListener, public IRadioButtonListener
{
public:
FormantFilterEffect();
~FormantFilterEffect();
static IAudioEffect* Create() { return new FormantFilterEffect(); }
void CreateUIControls() override;
void Init() override;
//IAudioEffect
void ProcessAudio(double time, ChannelBuffer* buffer) override;
void SetEnabled(bool enabled) override { mEnabled = enabled; }
float GetEffectAmount() override;
std::string GetType() override { return "formant"; }
void DropdownUpdated(DropdownList* list, int oldVal, double time) override;
void CheckboxUpdated(Checkbox* checkbox, double time) override;
void FloatSliderUpdated(FloatSlider* slider, float oldVal, double time) override;
void RadioButtonUpdated(RadioButton* list, int oldVal, double time) override;
void LoadLayout(const ofxJSONElement& info) override;
void SetUpFromSaveData() override;
void SaveLayout(ofxJSONElement& info) override;
bool IsEnabled() const override { return mEnabled; }
private:
//IDrawableModule
void GetModuleDimensions(float& width, float& height) override
{
width = mWidth;
height = mHeight;
}
void DrawModule() override;
void ResetFilters();
void UpdateFilters();
#define NUM_FORMANT_BANDS 3
BiquadFilter mBiquads[NUM_FORMANT_BANDS];
float* mDryBuffer{ nullptr };
float mEE{ 1 };
float mOO{ 0 };
float mI{ 0 };
float mE{ 0 };
float mU{ 0 };
float mA{ 0 };
FloatSlider* mEESlider{ nullptr };
FloatSlider* mOOSlider{ nullptr };
FloatSlider* mISlider{ nullptr };
FloatSlider* mESlider{ nullptr };
FloatSlider* mUSlider{ nullptr };
FloatSlider* mASlider{ nullptr };
std::vector<FloatSlider*> mSliders{};
bool mRescaling{ false };
float mWidth{ 200 };
float mHeight{ 20 };
struct Formants
{
Formants(float f1, float g1, float f2, float g2, float f3, float g3)
{
assert(NUM_FORMANT_BANDS == 3);
mFreqs[0] = f1;
mGains[0] = g1;
mFreqs[1] = f2;
mGains[1] = g2;
mFreqs[2] = f3;
mGains[2] = g3;
}
float mFreqs[NUM_FORMANT_BANDS]{};
float mGains[NUM_FORMANT_BANDS]{};
};
std::vector<Formants> mFormants;
float* mOutputBuffer{ nullptr };
};
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