XIE Bosun

(Acoustic Lab., School of Physics, South China University of Technology  Guangzhou 510641)

Received Feb.20, 2008

Revised Mar.8, 2008  

Abstract A method to correct the measured head-related transfer functions (HRTFs) at low frequency was proposed. By analyzing the HRTFs from the spherical head model at low frequency, it is proved that below the frequency of 400 Hz, magnitude of HRTF is nearly constant and the phase is a linear function of frequency both for the far and near field. Therefore, if the HRTFs above 400Hz are accurately measured by experiment, it is able to correct the HRTFs at low frequency by the theoretical model. The results of calculation and subjective experiment show that the feasibility of the proposed method.

PACS numbers: 43.66, 43.60