unsafe public float pitchDetect(double[] pre_ptr, int sample_count)
{
int SAMPLE_RATE = RATE;
int SAMPLE_COUNT = sample_count;
int BLOCK_SIZE = 8192;
int STEP_SIZE = 512;
// Prepare objects
pyinc_init(SAMPLE_RATE, BLOCK_SIZE, STEP_SIZE);
float *ptr = stackalloc float[SAMPLE_COUNT];
for (int i = 0; i < SAMPLE_COUNT; i++)
{
ptr[i] = (float)pre_ptr[i];
}
// Mine pitches
pyinc_pitch_range pitches = pyinc_feed(ptr, SAMPLE_COUNT);
float ret_ptr = 0.0F;
int num_of_pitches = 0;
// Go through and print the pitches
float *res_ptr = pitches.begin;
//if (*res_ptr != -1)
//Console.WriteLine(*res_ptr);
while (res_ptr != pitches.end)
{
if (*res_ptr != -1)
{
ret_ptr += *res_ptr;
num_of_pitches++;
}
res_ptr++;
}
ret_ptr = ret_ptr / num_of_pitches;
res_ptr = pitches.begin;
// Release the data
pyinc_clear();
return(ret_ptr);
}
// Use this for initialization
unsafe static public void use()
{
int SAMPLE_RATE = 44100;
int SAMPLE_COUNT = 10000;
int BLOCK_SIZE = 2048;
int STEP_SIZE = 512;
// Prepare objects
pyinc_init(SAMPLE_RATE, BLOCK_SIZE, STEP_SIZE);
float *ptr = stackalloc float[SAMPLE_COUNT];
// Generate a 440 herz sine wave
double freq = 440;
double angle_speed = 2 * Math.PI * (freq / SAMPLE_RATE);
for (int i = 0; i < SAMPLE_COUNT; i++)
{
ptr[i] = (float)Math.Sin(angle_speed * i);
}
// Mine pitches
pyinc_pitch_range pitches = pyinc_feed(ptr, SAMPLE_COUNT);
// Go through and print the pitches
float *res_ptr = pitches.begin;
while (res_ptr != pitches.end)
{
#if UNITY_EDITOR
Debug.Log(*res_ptr);
#else
Console.Write(*res_ptr);
#endif
res_ptr++;
}
// Release the data
pyinc_clear();
}
