Is there an app for android that will record sound coming from the speakers, like audacity does on the computer?

I want to record an online lecture and for some reason it plays faster on my kindle than it does on my computer, though it still requires a lot of buffering.

I'd like to be able to record on the Kindle and then transfer the recording to audacity on the computer to snip out the silent parts.

Most of the droid applications I've found record phone calls, which is not what I want to do.