Dominant Channel Theory: Why is 700 Hz so important for interaural time difference sensitivity and sound localization?

It has been well understood for decades that low-frequency interaural time differences (ITDs) are critical for humans to achieve their exquisite sound localization and speech perception in noise abilities. We have been investigating binaural perception across a range of sound pressure levels to better understand the underlying binaural frequency importance and the mechanisms that contribute to these abilities. Our new data suggest a rethinking of the classic ITD-frequency binaural display that enhances the importance of the 700-Hz channel.

More about the speaker: https://hesp.umd.edu/facultyprofile/goupell/matthew