--- /dev/null
+#define AUBIO_UNSTABLE 1
+
+// this file uses the unstable aubio api, please use aubio_pitch instead
+// see src/pitch/pitch.h and tests/src/pitch/test-pitch.c
+
+#include <aubio.h>
+
+int main ()
+{
+ uint_t n = 10; // compute n times
+ uint_t win_s = 1024; // window size
+ // create some vectors
+ fvec_t * in = new_fvec (win_s); // input buffer
+ fvec_t * out = new_fvec (1); // input buffer
+ // create pitch object
+ aubio_pitchspecacf_t * o = new_aubio_pitchspecacf(win_s);
+
+ while ( n-- ) {
+ aubio_pitchspecacf_do(o,in, out);
+ };
+
+ del_aubio_pitchspecacf(o);
+ del_fvec(in);
+ del_fvec(out);
+ aubio_cleanup();
+
+ return 0;
+}
+