*http://webpages.charter.net/tidmarsh/binmic/
*Stelios' electret preamp: http://wiki.dxarts.washington.edu/groups/general/wiki/22769/Electret_Preamp_Circuit.html
*[[Image:http://www.fullcompass.com/common/products/original/96629.jpg|400px]]**$110 http://www.fullcompass.com/product/387081.html?utm_source=googleps&utm_medium=shopping&utm_campaign=googleps&gclid=CNnC-b2Ig7YCFcR7QgodFiQA9g*http://www.zachpoff.com/diy-resources/low-noise-binaural-mics-primo-em172/
==Head-tracking==
Head-tracking with the MPU6050