It is technically light on theory. DSP is just a lot of applied math and it’s hard to hand wave it away if you really want to write software.
A book on music production or an introduction to audio engineering would probably offer a higher level overview.
However, I do have to make one slight joke:
> "The topics are short and light on theory."
This did not prepare me for full-page greek-letter and symbol walls haha.
https://i.imgur.com/2K7w1vL.png