freq_title->update(string);
int frm_sz1 = frm->size()-1;
if( freq_pixel > frm_sz1 ) freq_pixel = frm_sz1;
float *frame_data = frm->samples();
double level = frame_data[freq_pixel];
double scale = frm->scale();
freq_title->update(string);
int frm_sz1 = frm->size()-1;
if( freq_pixel > frm_sz1 ) freq_pixel = frm_sz1;
float *frame_data = frm->samples();
double level = frame_data[freq_pixel];
double scale = frm->scale();