Abstract
Investigations with a "relative" technique of the limits of dichotic intensity which permit binaural beats, show that listeners respond to the presence of beats whenever the tones to both ears are above threshold. The frequencies investigated ranged from 100 to 2000 cps. As other authors have previously reported, the best performances occurred in the 400- to 600-cps range. These new results fit more neatly into current theoretical formulations. They strengthen the case for an auditory nervous system with timing channels independent of other transmission lines and, thereby, also have implications for pitch theory.

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