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.
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