| 摘要 |
The present invention relates to a technique for realizing stereophonic sound using panning comprises: a first step for extracting the position information of a virtual sound source, the position information of each of a plurality of speakers arranged on an arc with the same radius, and the position information of the center point of the arc; a second step for comparing a distance (radius of virtual sound source, r) between the center point of the arc and the virtual sound source with a distance (radius of speaker, rspk) between the center point of the arc and the speakers; and a third step for calculating a gain value of each of the speakers according to a value obtained by the comparison of the radius of the virtual sound source and the radius of the speakers, the position information of the virtual sound source, and the position information of the speakers. According to the technical configuration of the present invention, when surround speakers are arranged and the listener is at the center thereof, a panning rule including level adjustment considering the position of a sound source and the angles of speakers can be applied when it is assumed that the position of the sound source is outside the speakers, a speaker level adjustment technique according to a distance between the speakers and the sound source can be applied when it is assumed that the position of the sound source is inside the speakers, and results obtained from two formulas can be compensated when it is assumed that the position of the sound source is near the radius of the speakers (boundary) to naturally change a level, thereby realizing spatial movement of the sound source more naturally. [Reference numerals] (AA) r : a distance between the listener and a sound source; (BB) g_i : level gain of speaker i; (CC) Start; (DD) Calculate g1^out_i and g1^in_i |
