To accomplish this, Watts explains, means “precisely measuring the time delay between sound sensors that are separated in space and that both receive the sound.” The process involves pitch analysis, spatial position, and speech cues, including language-specific cues. “One of the important cues used by humans for localizing the position of a sound source is the Interaural Time Difference (ITD), that is, the difference in time of arrival of sounds at the two ears.”
