int main( int argc, char *argv[] )
{
// make sure that an argument was passed in
if ( argc != 2 )
{
cout<<"usage: "<< argv[0] <<" <filename>\n";
return 0;
}
// open the wav file
char *path = new char[50];
strcpy(path, argv[1]);
WavFileForIO *myWav = new WavFileForIO(path);
// print a summary of the wav file
char *summary = myWav->getSummary();
printf("Summary:\n%s", summary);
// write the summary back out
strcpy(path, "out.wav");
myWav->setPath(path);
myWav->save();
// collect the garbage
delete summary;
delete path;
delete myWav;
return 0;
}
jdouble
Java_com_example_lsm_lasttest_NdkTest_WavToHz(JNIEnv* env, jobject obj, jstring jname)
{
double hz;
const char* filename = env->GetStringUTFChars(jname, NULL);
env->ReleaseStringUTFChars(jname, filename);
WavFileForIO *myWav = new WavFileForIO(filename);
CSoundAnalysis m_sndAnalysis;
myWav->read();
char *summary = myWav->getSummary();
int i;
short max_amp;
short min_amp;
const int N = 512;
int nFileSize = myWav->myChunkSize - 44;
//printf("nFileSize: %d\n", nFileSize );
short *BUFFER = new short[nFileSize/2];
memcpy(BUFFER, myWav->myData, nFileSize);
//------------------------------------------------------------------------------------------
for(i = 0 ; i < nFileSize/2 ; i++){
if (BUFFER[i] > max_amp) max_amp = BUFFER[i];
if (BUFFER[i] < min_amp) min_amp = BUFFER[i];
}
//------------------------------------------------------------------------------------------
//WaveView2(&dc, BUFFER, nFileSize/2, CRect(0,0,400, 100), min_amp, max_amp);//Input Wav View
//------------------------------------------------------------------------------------------
int frame_length=256; /* window size (points) */
int frame_pitch=60; /* window sift (points) */
short ds[N]; /* short형 음성 데이터를 double형으로 변환한 것 */
int num_frame = 0;
//double *mag_spectrum = new double[512];
//COMPLEX *complex_data = new COMPLEX[512];
//double maxSpectrum;
//CRect rtFreq = CRect(0,100,400, 200);
//CRect rtSpectrogram = CRect(0, 200, 1200, 200 + 256);
//------------------------------------------------------------------------------------------
map<float,int> all;
for (i= 0,num_frame = 0 ; i < nFileSize/2 ; i += frame_pitch, ++num_frame){
m_sndAnalysis.set_window(&BUFFER[i],ds,frame_length,0);
//m_sndAnalysis.PCM2FFT(ds, mag_spectrum, complex_data, &maxSpectrum, 512, 512);
//FreqView(&dc, mag_spectrum, maxSpectrum, rtFreq);
float hz = m_sndAnalysis.Spectrogram(ds, N, 512);
if (all.find(hz) == all.end()) all[hz] = 1;
else all[hz]++;
}
float max_hz = 0;
int maxa = 0;
for (auto a : all) {
if (maxa < a.first) {
maxa = a.first;
max_hz = a.second;
}
}
//std::string hello = "Hello from C++";
return max_hz;
}