Patent ID: 8031883
Filing Date: 2011-10-04
Classification: H04S

Abstract:
1. A parameter determining method applied to a crosstalk cancellation system for preserving quality of sound, the method comprising the steps of: (A) providing an audio signal input device for inputting a two-channel audio signal; (B) modeling a relation between parameters of the crosstalk cancellation system and a head related transfer function (HRTF) to thereby obtain an output transfer impulse response, wherein the HRTF contains contralateral and ipsilateral head related impulse responses (HRIRs), and the output transfer impulse response contains contralateral and ipsilateral output transfer impulse responses; (C) setting the contralateral output transfer impulse responses to a value approximate to zero; (D) delaying the ipsilateral head related impulse responses (HRIRs) to form the ipsilateral output transfer impulse responses so as to maintain an original field tone and further preserve the quality of sound; and (E) performing an inverse operation to compute the parameters of the crosstalk cancellation system.