Three-dimensional sound system and three-dimensional sound implementation method using head related transfer function

摘要

Each signal of the 2-channel stereo signal is input to the high-pass filter to remove the DC component, and then the signal from which the DC component is removed is individually processed by a finite impulse response filter implementing the magnitude characteristic of the position-related head related transfer function (HRTF) Thereby realizing a three-dimensional sound. The head-related transfer function is a kind of filtering performed in the outer ear before the sound reaches the eardrum, and the characteristics of the head related transfer function vary depending on the direction in which the sound reaches the ears. The present invention applies a position-related head related transfer function F modeled by appropriately modifying such a head related transfer function to the sound source, thereby changing the position of the sound source in the direction of the celadon regardless of the position of the actual sound source, Respectively.