add quadratic interpolation to yin

add quadratic interpolation to yin

diff --git a/src/pitchyin.c b/src/pitchyin.c
index 02e507b..eb6dec7 100644 (file)
--- a/src/pitchyin.c
+++ b/src/pitchyin.c
@@ -109,6 +109,7 @@ smpl_t aubio_pitchyin_getpitchfast(fvec_t * input, fvec_t * yin, smpl_t tol){
                        return vec_quadint_min(yin,period,1);
                }
         }
-       return 0;
+       return vec_quadint_min(yin,vec_min_elem(yin),1);
+       //return 0;
 }