平面环绕声的多声道扩展与效果分析

Multichannel Extensions and Effect Analysis of Plane Surround Sound

对现有的多种家庭三维声系统进行理论分析,提出一种新的五声道平面环绕声的多声道扩展算法。在主观听音实验的基础上,分别对五声道重放模式和多声道重放模式进行沉浸感、临场感、声像准确性、声音层次感以及空间感等5个参数的主观偏爱度评分,分析两种模式下的听感效果。

Theoretical analysis and listening comparison of various family’s 3D sound systems are carried out,and a new multi-channel extension algorithm for five channel planar surround sound is proposed.On the basis of subjective audition evaluation experiment,it was compared and appraised for subjective preference from immersion,telepresence,imaging accuracy,sound levels sense and sense of space in 5.0 mode and multi-channel mode.Auditory effect in two modes was analysed.