Ошибка terminate called after throwing an instance of 'std::bad_alloc' what(): std::bad_alloc выделение памяти

#include <string>
#include <fstream>
#include <tchar.h>
#include <iostream>
#include <math.h>
#include <cstdlib>
#include <new>
 
using namespace std;
 
struct WAVHEADER
{
    char chunkId[4];
    unsigned long chunkSize;
    char format[4];
    char subchunk1Id[4];
    unsigned long subchunk1Size;
    unsigned short audioFormat;
    unsigned short numChannels;
    unsigned long sampleRate;
    unsigned long byteRate;
    unsigned short blockAlign;
    unsigned short bitsPerSample;
    char subchunk2Id[4];
    unsigned long subchunk2Size;
};
 
class WavProcessor
{
public:
    WavProcessor();
    ~WavProcessor();
 
    long *w;
    bool ReadWav(std::string fileName);
    bool SaveWav(std::string targetFileName);
 
 
 
private:
    WAVHEADER *wh;
    long *waveData;
    //short *w;
    long *data1;
    size_t dataLen;
};
 
WavProcessor::WavProcessor() : wh(0), waveData(0)
{
}
 
 
WavProcessor::~WavProcessor()
{
    if(wh)
        delete wh;
    if(waveData)
        delete[] waveData;
    if(data1)
        delete[] data1;
}
 
bool WavProcessor::ReadWav( std::string fileName)
{
    if(wh)
        delete wh;
    if(waveData)
        delete waveData;
    if(data1)
        delete data1;
 
    std::fstream fs(fileName.c_str(), std::ios::in | std::ios::binary);
    if(!fs.is_open())
        return false;
...
wh = new WAVHEADER;
            fs.read((char*)wh, sizeof(WAVHEADER));
            dataLen = wh->subchunk2Size;
            waveData[dataLen];
            w[dataLen];
            data1[dataLen];
            fs.read((char*)waveData, dataLen);
            cout << "FILE WAS READ" << endl;
            MO = 0;
            for (i = 0; i < dataLen; i++) {
            //if (i<16*N+1) cout << w[i] << " " << waveData[i] << " " << endl;
            MO = MO+waveData[i];
            }
            MO = MO/dataLen;
            cout << "MO=" << MO << endl;