Audio directional loudspeaker is a novel loudspeaker which can generate an audio signal with high directivity by utilizing the parametricarray principle.
声频定向扬声器是利用参量阵原理，产生高指向性声频信号的新一代扬声器。
2
The method for theoretical calculation of parametric transient signal array, in which the nonlinear absorption of primary wave has been taking into consideration, is presented.
提出考虑到非线性吸收时计算暂态信号参量阵的计算方法。
3
The sound fields of the parametric line array can be analysed by it. Firstly, the point-source function is expanded into an operator on a plane wave function.