1.   His most characteristic mannerism, sliding down a few frets, was the sonic image of someone slipping out of the spotlight.

2.   If the center speaker differs radically from the main stereo pair, weird things happen to the sonic image.

3.   The Madza-Bose system got high marks for musical temperament and for the naturally forward placement of its sonic image.

4.   There are multiple ultra-sound sensors, firing and picking up sonic images, that let the robot identify and avoid above-ground obstacles, their speed and direction.