Listen to this video until the end, and when it stops, play it again to hear the difference. A Shepard tone, named after Roger Shepard, is a sound consisting of a superposition of sine waves separated by octaves. When played with the base pitch of the tone moving upward or downward, it is referred to as the Shepard scale. This creates the auditory illusion of a tone that continually ascends or descends in pitch, yet which ultimately seems to get no higher or lower. It has been described as a "sonic barber's pole".
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The State Fair maybe over, but celebrating the Commonwealth continues. What's going on this week? Tony Cruise talks with the Kentucky Tourism's Scottie Ellis.
Getting paid at work is about to change for many. How so? CBS News and Fortune Magazine's Geoff Colvin explains.
Mayor Greg Fischer checks in with Tony this week talking about more jobs for Louisville Ford workers, plus Leadership Louisville.