iPhone record audio from mic while playing music from iPod library using MPMusicPlayerController

问题

Is it possible while playing music from iPod library using MPMusicPlayerController, recording voice form mic on iPhone? If possible, any sample or code?

来源：https://stackoverflow.com/questions/13826065/iphone-record-audio-from-mic-while-playing-music-from-ipod-library-using-mpmusic