diff --git a/README.md b/README.md
index 13b32ac..666f69b 100644
--- a/README.md
+++ b/README.md
@@ -90,5 +90,6 @@ The input data should represent for an audio longer than 0.9s.
 ​   *numpy.ndarray*
 
 ​   Audio embeddings in shape (num_clips, 128).
+Each embedding stands for features of an audio clip with length of 0.9s.