Aby zapisywac trzeba posiadać plik dll oszukaj na stronie producenta programu tam wszystko będzie napisane/
How do I download and install the LAME MP3 encoder?
Because of software patents, we cannot distribute MP3 encoding software ourselves. Follow these instructions to use the free LAME encoder to export MP3 files with Audacity.
Windows
Go to the LAME download page.
http://users.evtek.fi/~k0301510/lame/lame-3.96.1.zipClick on any link from the list of identical "lame-3.96.1" links.
When you have finished downloading LAME, unzip it and save the file lame_enc.dll anywhere on your computer.
The first time you use the "Export as MP3" command, Audacity will ask you where lame_enc.dll is saved.
Mac OS 9 or X
Otoz jak chce eksportowac nagrany plik (nagrywam mikrofonem) w MP3 to pisze ze musze jakas biblioteke znalezc 
Mozecie powiedziec o co chodzi?
