Now moviegoers could not only hear, say, Stravinsky's The Rite of Spring, conducted by Maestro Leopold Stokowski and recorded in stereophonic sound (then a rarity in film .
At the wheel was a shapely brunette beautysecretary, assistant and part-time chauffeur to the man in the back seat listening to Mantovani on a built-in stereophonic tape .
In stereophonic recording, sound is picked up by three microphones widely separated on the sound stage, to produce an illusion of tonal depth and space comparable to that of an .