There’ll be a variety of ways you can do it, but one very easy way will be using a plugin for WordPress called “Wavr”. Once you install that plugin, you simply use the following code to embed one in your post:
You’ll be able to change some options in the settings for fonts and colors, too.
The problem at this point is that you can only see embedded waves if you have access to a dev account for Wave. Over time, that will change and these will suddenly get very useful. If you’ve got access already, check out this post to see what it looks like. If not, check out the screenshot below to see what an embedded wave looks like: