The minimum audible angle quantifies the just-detectable change in sound source position

Evidence

Mills (1958) took a somewhat different approach to measuring the ability to localize sounds and measured the just detectable angle between two sounds. This quantity is commonly called the minimum audible angle (MAA) today. Mills placed a speaker at a specific location (e.g., 0° in front or 90° to the side) and measured how far the speaker must be moved (in degrees) before the listener was able to determine that the speaker was in a different location. — Jennifer Lentz, Psychoacoustics- Perception of Normal…, 1495

Categorization

Category: Definitional Content

• DEFINE: Defines MAA as a key measurement concept in localization research.

Related

• The just-detectable speaker shift defines the minimum audible angle. (similarity 0.92)
• Minimum Audible Angle measures the smallest discriminable angular change (similarity 0.86)

Broader Connections

• The just-noticeable difference quantifies the smallest audible change in a sound #expands (0.92)
• Inter-loudspeaker delay shifts perceived virtual source position toward the earlier sound. #exemplifies (0.78)