// ofApp.h
#pragma once
#include "ofMain.h"
#include "ofxTonic.h"
using namespace Tonic;
class ofApp : public ofBaseApp{
    ofxTonicSynth synth;
public:
    void setup();
    void update();
    void draw();
    void audioRequested (float * output, int bufferSize, int nChannels);
};
// ofApp.cpp
#include "ofApp.h"
void ofApp::setup() {
    // set up a stereo output in oF
    ofSoundStreamSettings settings;
    settings.numOutputChannels = 2;
    settings.setOutListener(this);
    ofSoundStreamSetup(settings);
    // create a sine wave we'll use for some vibrato
    SineWave vibratoOsc = SineWave().freq(10);
    // plug that frequency generator into the frequency slot of the main audio-producing sine wave
    SineWave tone = SineWave().freq(400 + 20 * vibratoOsc);
    // set the synth's final output generator
    synth.setOutputGen( tone );
}
void ofApp::update() { }
void ofApp::draw() { }
void ofApp::audioRequested (float * output, int bufferSize, int nChannels) {
    synth.fillBufferOfFloats(output, bufferSize, nChannels);
}