Hello, I would like to create a little script with ruby, that would run 
on my computer - nothing to do with the web - and that would just record 
the audio stream from the internal microphone of the computer.
After this, I would like to make this script a windows service, and to 
be able to plan when to record, but anyway for this part I think I found 
enough documentation.

Recording sound from the internal microphone is the part where I need 
some help... because I couldn't find anything about it.
Is there some library that already exists to be able to access to the 
microphone sound input ?
Or is there a simple executable that I might execute using the %x() 
syntax of ruby, and that can do what I need ? Maybe something like 
mencoder ?

Concerning the recording audio format, I would prefer direct mp3 
recording/encoding, like 64kbit/s rate or more...

Thank you in advance.

Guillaume