I am a post sound b#itch. I love it. It is everything I have wanted since I ran my Cubase system in 89. There is nothing else for me. I started competing for time in the studio at age 13.
While I do call my female comrades "unicorns", as there are not many of us, those that exist would not at all be attracted to more "artsy" course titles or different educational marketing. In fact, if anyone can find an Advanced SSL and/or Neve Automation Techniques for Post seminar or Audio Implementation course for gaming, I would be tickled.
The last statistic I read was 5% females in audio engineering by the US Dept of Labor a few years back. I couldn't tell you why it is so low. I cannot imagine a cooler gig.
All I know is that it is changing and the women that roll in audio successfully are blowing it up. Check out mixer Anna Behlmer (Super 8, Cloverfield, etc), mixer Lora Hirschberg (First Female Academy Award Winner for Audio Mix last year for Inception and also mixed Avengers and The Dark Knight this year.), or Supervising Sound Editor, Gwen Whittle (Tron, Mission:Impossible Ghost Protocol, etc). In fact, Skywalker in general has lots of audio chicks rocking the air waves.
Generally, there seems to be more females in dialogue editing, ADR mixing, & dialogue supervision than sound design, foley, and re-recording mix. But I know plenty of women on the lots in LA who can make things go "BOOM" and can surf faders. Many do so for some of the highest end audio post companies and studios imaginable. Take Ann Scibelli for example. She works for Soundelux and just finished Prometheus this year.
And just to crush another stereotype...I am also girly and hott. I love to nerd just as much as I love to get mani/pedis. We do exist. We are the complete package. We are gunning for your gigs. We are getting gigs and your studio will be assimilated. :)