Programar archivo wav en cpp

#include <iostream>

#include <cmath>

#include <fstream>

using namespace std;

// Riff chunk

const string chunkID = "RIFF";

const string chunkSize = "----";

const string format = "WAVE";

// FMT chunk

const string subchunk1ID = "fmt ";

const int subchunk1Size = 16;

const int audioFormat = 1;

const int numChannels = 1;

const int sampleRate = 44100;

const int byteRate = sampleRate * numChannels * (subchunk1Size/2);

const int blockAlign = numChannels * (subchunk1Size/8);

const int bitsPerSample = 16;

// Data sub-chunk

const string subchunk2ID= "data";

const string subchunk2Size = "----";

const int duration = 30;

const int amplitudMax = 32760;

const double sol = 391.995;

const double la = 440;

const double si = 493.883;

const double dO = 523.251;

const double re = 587.330;

const double mi = 659.255;

const double fa_sost = 739.989;

const double sol2 = 783.991;

void escribir_en_bytes(ofstream &file, int value, int byteSize){

        file.write(reinterpret_cast<const char*>(&value), byteSize);

}

int main(){

        ofstream wav;

        wav.open("test.wav", ios::binary);

        if(wav.is_open()){

                wav << chunkID;

                wav << chunkSize;

                wav << format;

                wav << subchunk1ID;

                escribir_en_bytes(wav, subchunk1Size, 4);

                escribir_en_bytes(wav, audioFormat, 2);

                escribir_en_bytes(wav, numChannels, 2);

                escribir_en_bytes(wav, sampleRate, 4);

                escribir_en_bytes(wav, byteRate, 4);

                escribir_en_bytes(wav, blockAlign, 2);

                escribir_en_bytes(wav, bitsPerSample, 2);

                wav << subchunk2ID;

                wav << subchunk2Size;

                int iniciar_audio = wav.tellp();

                for(int i=0; i < 2; i++){

                        for(int j=0; j < sampleRate * (duration/2); j++){

...