src/effects/pitchshift.h: improve documentation

diff --git a/src/effects/pitchshift.h b/src/effects/pitchshift.h
index e125273..c27eed7 100644 (file)
--- a/src/effects/pitchshift.h
+++ b/src/effects/pitchshift.h
@@ -29,7 +29,7 @@ extern "C" {
 
   Pitch shifting object
 
-  This file ...
+  ::aubio_pitchshift_t can be used to transpose a stream of blocks of frames.
 
   \example effects/test-pitchshift.c