short audioStream[65536];
 float ifftData[65536];

 //Represent float data as short
 for(int i = 0; i < 65536; i++) {
    audioStream[i] = ifftData[i] * 32767;
 }

 const char *fname = "test.wav";

 //SNDFILE
 create_file (fname, SF_FORMAT_WAV | SF_FORMAT_PCM_16) ;

 void create_file (const char * fname, int format) {

 SNDFILE *file2;
 SF_INFO x;

 x.samplerate = 44100;
 x.frames = 65536;
 x.format = format;
 x.channels = 1;

 file2 = sf_open(fname,SFM_WRITE,&x);

 sf_write_short(file2, audioStream, 65536);

 sf_close(file2);

 }