The Haas Effect
The Haas effect, aka the precedence effect, is a binaural psychoacoustical effect. It explains how, when a sound follows another sound separated by a short time delay, listeners perceive it as a single auditory event. This phenomenon dates back to 1949. The first description of this effect appeared in The Precedence Effect in Sound Localization by Wallach, Newman, and Rosenzweig. The Physics…
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