Comment by mhh__
Peter Wright (of Spycatcher fame) wrote that he got good results in the 60s helping people snoop on conversations (i.e. cocktail party problem) by playing mono audio as "stereo" with a slight phase shift in one ear.
Peter Wright (of Spycatcher fame) wrote that he got good results in the 60s helping people snoop on conversations (i.e. cocktail party problem) by playing mono audio as "stereo" with a slight phase shift in one ear.