当设计一个扬声器时，进行自由场测量以观察喇叭的指向性和障板形状对于极性响应的影响是非常重要的。
When designing a loudspeaker it is essential to perform free-space measurements to see the effects of driver directivity and baffle shape on the important polar response.
以TMS320VC33数字信号处理器为核心设计了一种指向性扬声器。
A directional loudspeaker based on the TMS320VC33 digital signal processor is presented in the paper.
声反射器广泛用于高音扬声器的指向性控制。
Acoustic reflector is widely used in dome speaker for sound energy dispersion redistribution.
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。
Audio directional loudspeaker is a novel loudspeaker which can generate an audio signal with high directivity by utilizing the parametric array principle.
提出了一种利用空气中超声波非线性传播效应制作的、可产生高指向性可听声的新型声束扬声器。
A novel audio beam loudspeaker which based on nonlinear propagation effects of ultrasonic in the air to generate audible sound with high directivity is presented.
最后，构建了一实验系统，该系统由信号源、功放阵列和扬声器阵列组成，并在实验室环境下完成了线阵列扬声器组的指向性实验和测试。
At last, we design an experimental system including signal source, power amplifier array and loudspeaker array. Some experiments of the directive property of loudspeaker array are completed.
一种新颖的声束扬声器是捏造的利用超声波在空气中的非线性传播效应，产生声音的高指向性的声音。
A novel audio beam loudspeaker is fabricated by utilizing the nonlinear propagation effects of ultrasonic in the air to generate audible high directivity sound.
一种新颖的声束扬声器是捏造的利用超声波在空气中的非线性传播效应，产生声音的高指向性的声音。
A novel audio beam loudspeaker is fabricated by utilizing the nonlinear propagation effects of ultrasonic in the air to generate audible high directivity sound.
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