use library to convert output file in to mp3 format.

```
you can use this (or part) library to convert a recorded file in streaming, 
with output format mp3? if you could give me some advice on how to use 
libraries jni to get the result described above?
Thank you.
```

Original issue reported on code.google.com by `pietrona...@gmail.com` on 8 Nov 2012 at 10:17
