Yu research group is focused mainly on spatial audio, binaural hearing, signal processing and psychoacoustics.

     Currently, the near-field HRTF database is established by our group for 56 Chinese subjects. Measuring the nearfield HRTF is challenging, due to the effort and resources required, and the multiple-scattering error caused by the sound source. A novel spherical source and a fast measurement system were designed to address these challenges. Additionally, a method to recover the minimum-phase character of the measured HRTF was found, and accurate models were proposed to analyze near-field HRTFs and to understand source localization in the vicinity of listener.

In addition,we also did many works about sound source localization.The sound source localization of human auditory system includes two aspects: direction and distance. Auditory distance localization is determined by multiple cues. In the following, the auditory distance localization cues under the various physic conditions will be investigated comprehensively and in detail. Then, the relative and synergistic contributions of various distance localization cues will be analyzed and discussed, and thereby the rule and model of auditory distance localization will be expected to be obtained. The experimental platform of the study is the virtual auditory environment (VAE) real-time rendering system. The research results will be applied into binaural hearing and spatial sound reproduction of hand-held multimedia devices.