The soundcloud short code does not seem to be working. I’ve tried over several days and it just shows up as raw code. Is this a glitch, has support officially been discontinued, is there some workaround?
[soundcloud url="https://api.soundcloud.com/tracks/151458437" params="color=ff5500&auto_play=false&hide_related=false&show_artwork=true&show_comments=true&show_user=true&show_reposts=false" width="100%" height="166" iframe="true" /]
Using the latest wordpress 3.9.1
If you are on WordPress 3.5 or higher just putting the URL on a separate line should work:
You do not need to use the embed code, WordPress handles the embedding via oEmbed itself.
Also have a look at the Codex.
EDIT: If you want the small image you probably should have mentioned that in the question…
The easiest way probably is to put the embed code in
<iframe width="100%" height="166" scrolling="no" frameborder="no" src="https://w.soundcloud.com/player/?url=https%3A//api.soundcloud.com/tracks/151456970&color=ff5500&auto_play=false&hide_related=false&show_artwork=true&show_comments=true&show_user=true&show_reposts=false"></iframe>