Parametric system for testing capability of auditory spatial positioning and method of providing parametric minimum audible angle

A parametric system for testing a capability of auditory spatial positioning, comprising:

• a host computer system, calculating spatial movement data according to a spatial coordinate conversion algorithm based on nonlinear least squares and communicating with a slave computer;
• a spatial movement system, realizing precise control of any spatial position through circumferential movement, radial movement and vertical movement;
• a real-time three-dimensional display system, built into the host computer system to reconstruct a three-dimensional model in real time through a system image and feedback real-time movement data of the system on the basis of virtual reality technologies;
• an audio system, randomly generating a type of audio data of a sound source and a sound source with equal-difference decibels;
• and
• an objective evaluation system for subjects, testing the spatial positioning of the sound source by human ears, selecting spatial point data, matching to real spatial data of the sound source, and providing an objective evaluation.