Function apply_window

KeyboardVisualizerCommon/chuck_fft.c:86–92

----------------------------------------------------------------------------- name: apply_window() desc: apply a window to data -----------------------------------------------------------------------------

// desc: apply a window to data
//-----------------------------------------------------------------------------
void apply_window(float * data, float * window, unsigned long length)
{
    unsigned long i;

    for (i = 0; i < length; i++)
        data[i] *= window[i];
}

static float PI;
static float TWOPI;