#pragma once

#include "Arduino.h"
#include "board.h"

#define SAMPLERATE_HZ 44100  // The sample rate of the audio.  Higher sample rates have better fidelity,
                             // but these tones are so simple it won't make a difference.  44.1khz is
                             // standard CD quality sound.

#define AMPLITUDE     ((1<<29)-1)   // Set the amplitude of generated waveforms.  This controls how loud
                             // the signals are, and can be any value from 0 to 2**31 - 1.  Start with
                             // a low value to prevent damaging speakers!

#define WAV_SIZE      256    // The size of each generated waveform.  The larger the size the higher
                             // quality the signal.  A size of 256 is more than enough for these simple
                             // waveforms.


// Define the frequency of music notes (from http://www.phy.mtu.edu/~suits/notefreqs.html):
#define C4_HZ      261.63
#define D4_HZ      293.66
#define E4_HZ      329.63
#define F4_HZ      349.23
#define G4_HZ      392.00
#define A4_HZ      440.00
#define B4_HZ      493.88

// Define a C-major scale to play all the notes up and down.
float scale[] = { C4_HZ, D4_HZ, E4_HZ, F4_HZ, G4_HZ, A4_HZ, B4_HZ, A4_HZ, G4_HZ, F4_HZ, E4_HZ, D4_HZ, C4_HZ };


void initAudio(void);
void handleAudio(void);