To add a video from YouTube/Vimeo in a post or page follow the instructions written in the two custom shortcodes specially developed for this. You’ll be asked for the video ID found in the Video URL. Use the “Insert SoundCloud File” shortcode to embed an audio file from soundcloud.com. They have the largest community of artists, bands, podcasters and creators of music & audio from online.
Here are three examples of these shortcodes at work: