doc/aubiopitch.txt: add note about yinfast

diff --git a/doc/aubiopitch.txt b/doc/aubiopitch.txt
index 1313975..a521ce1 100644 (file)
--- a/doc/aubiopitch.txt
+++ b/doc/aubiopitch.txt
@@ -120,6 +120,12 @@ PITCH METHODS
   Chapter 3, Pitch Analysis, PhD thesis, Centre for Digital music, Queen Mary
   University of London, London, UK, 2006.
 
   Chapter 3, Pitch Analysis, PhD thesis, Centre for Digital music, Queen Mary
   University of London, London, UK, 2006.
 

+  yinfast  YIN algorithm (accelerated)
+
+  An optimised implementation of the YIN algorithm, yielding results identical
+  to the original YIN algorithm, while reducing its computational cost from
+  O(n^2) to O(n log(n)).
+

 SEE ALSO
 
   aubioonset(1),
 SEE ALSO
 
   aubioonset(1),