This is Audio Xtra ShockWave recorder, third-party software (Plugin) for Macromedia Director MX and later: http://xtras.tabuleiro.com/products/audio/
The site says: "Audio Xtra is no longer being updated, and no new releases are planned at this time. Registered users will continue to receive priority support until November of 2011."
You can use the embed code from the web page that Director outputs to embed it like regular flash in a ReadingDiv in HotPotatoes (or as an iframe full page) so students can read a text aloud and record their voices, for instance.
Yet, as Glenys said, how are you going to assess and grade students? HotPotatoes won't help you there as it cannot calculate any score, so you don't need HotPotatoes for anything more than uploading it through QuizPort or HotPot.
So what you need is:
- purchase Macromedia Director MX or later.
- purchase AudioXtra
- Embed the resulting output html code in HotPotatoes
I've long wanted to use this AudioXtra plugin, but Director IS expensive, and if a friend/colleague (who you can ask for a favour) has purchased it already, you're lucky.
Over the years I've searched for alternative audio recorders to use WITH (not inside) HotPotatoes but I need help with php. At the HotPot Minimoot in Paris, I mentioned that to Gordon, but he seems very busy trying to release TaskChain a.s.a.p., so I don't want to bother him right now.
Hope that helps