On 9/3/2014 2:11 PM, DAVID BURNHAM wrote:
> Traditionally, "binaural" means designed to be listened to using head phones.  In other words, each channel is designed to reach only one ear.  Usually these recordings are made using an artificial head or a single pair of mikes spaced roughly 20cms apart with a baffle in between.  Spot mikes shouldn't be employed.  It is difficult to convert such a source to a true stereo recording.

All true, and this is the classic definition of "binaural". But for 
decades the word was occasionally and loosely used to denote any 
two-channel recording system. Caused no end of confusion.

Peace,
Paul