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5.1环绕声系统中声像的准确定位是非常重要的问题,其主要由环绕声前方3支话筒实现。较双声道立体声而言,环绕声前方声道由于增加了中央声道,声像定位更加复杂。文中着重分析和讨论环绕声系统中前方声道应用3支全指向话筒时声像定位的问题,并结合双声道立体声的相关理论及数据,得出使前方声道声像分布较均匀的相关参数。
5.1 Accurate positioning of the sound image in the surround sound system is a very important issue, which is mainly achieved by the 3 microphones in front of the surround sound. Compared with the two-channel stereo, the surround sound front channel due to an increase of the center channel, the sound image localization is more complicated. In this paper, we focus on the analysis and discussion of the sound image localization of 3 omnidirectional microphones in the front channel of the surround sound system. Combining with the theory and data of the 2-channel stereo, we get the more uniform correlation parameter.