[Stk] mo_audio recording internal sound

[Davide Cairo]

Hi everyone!
I'm making an app that play samples that i load in a buffer. i'm using mo_audio to play buffers, but i need to record ,what the user is doing , on a sound file, i don't want to use iphone mic , i need to save all the sounds in a buffer and create a file.
Is this possible using momu stk? can i write an audio file using internal soundsource?