Recently Fraunhofer released its own AAC-LC/HE-AAC/HE-ACC v2 encoder and decoder for Android 4.1, and this has been extracted as a separate open source project and included in ffmpeg/libav as an external library. Since FAAC is crappy and not really GPL (contains third party copyrighted source code) and Fraunhofer's encoder has ranked higher than Nero's in recent tests, I feel compelled to strongly suggest the inclusion of FDK-AAC in MeGUI. Reference links:
http://www.iis.fraunhofer.de/bf/amm/implementierungen/fdkaaccodec/index.jsp
https://android.googlesource.com/platform/external/aac
http://sourceforge.net/projects/opencore-amr/files/fdk-aac
http://www.hydrogenaudio.org/forums/index.php?showtopic=95989&st=0
http://listening-tests.hydrogenaudio.org/igorc/aac-96-a/results.html
Please add this high-quality open-source AAC encoder. Something good is needed in MeGUI since it's been a while now since the development of Nero AAC stopped.
Implemented
Hi. you are a genius. Thanks for MeGUI. Please add the latest audio codec, Unified Speech and Audio Coding (USAC) or (xHE-AAC). xHE-AAC is THE BEST OF THE BEST.

and soon x266 and av1 video codecs. Thank you so much for everything