diff --git a/pages/audio.datasets.md b/pages/audio.datasets.md
index acb2498..7fa7cd5 100644
--- a/pages/audio.datasets.md
+++ b/pages/audio.datasets.md
@@ -57,7 +57,7 @@
 #### fat tissue
 
 - https://physionet.org/content/maternal-ultrasound-nutrition/
-	- **knowledge-wall**
+	- #knowledge-wall
 
   
 #### speech / mouth / articulation
@@ -65,10 +65,12 @@
 ##### KSoF (The Kassel State of Fluency Dataset – A Therapy Centered Dataset of Stuttering)
 
 - https://paperswithcode.com/dataset/ksof
+	- #knowledge-wall 
 
 ##### RWCP-SSD-Onomatopoeia
 
 - https://paperswithcode.com/dataset/rwcp-ssd-onomatopoeia
+	- no sound, you need to register http://research.nii.ac.jp/src/en/register.html #knowledge-wall
 
 > RWCP-SSD-Onomatopoeia is a dataset consisting of 155,568 onomatopoeic words paired with audio samples for environmental sound synthesis