research/implement ezaudio

[johanndiedrick]

https://github.com/syedhali/EZAudio

[therewasaguy]

Another option for accessing the raw buffer of audio might be to continue using AV Audio Engine directly, and "tap" the mic input

http://stackoverflow.com/questions/27203622/tap-mic-input-using-avaudioengine-in-swift

http://stackoverflow.com/questions/20930008/core-audio-get-data-from-audioqueue-or-audiounits-into-memory