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本文利用已研制成功的计算机软件,发现在倒相式扬声器箱系统优化设计中,规定低频理想频响特性对实际优化设计结果有明显的影响;在低频频响特性范围内,采用四阶最平直的Butterworth高通滤波器函数鉴定倒相箱优化设计的效果,与目前国际上公认的A.N.THIELE音箱系统参数对照,差别较大,除扬声器机电品质因素Q_(TS)等于0.383附近以外,实际设计效果并不理想。按Q_(TS)值分别采用QB_3、B_4、C_4分段处理低频理想频响鉴定倒相箱优化设计效果,与A.N.THIELE音箱系统参数对照,基本吻合,实际设计效果良好。经过实际试算和模拟测试表明:倒相式音箱低频理想频响分段处理方法是成功的,设计效果是满意的;我们研制的软件,在箱系统参数项目和对应参数数据密集程度方面都比A.N.THIELE表有进一步扩充和完善,它具有一定的实际设计倒相箱的价值。
In this paper, the computer software has been developed and found that in the inverted speaker box system optimization design, the provisions of the low-frequency ideal frequency response characteristics of the actual optimization design results have a significant impact; in the low-frequency response characteristics of the fourth-order flattest The effect of straight Butterworth high-pass filter function to identify the optimal design of the inverter box is quite different from that of internationally recognized ANTHIELE speaker system parameters. The practical design effect is obtained except that the quality factor Q TS of the speaker is equal to 0.383 Not ideal. According to the value of Q_ (TS), QB_3, B_4 and C_4 are used respectively to process the optimal design result of low frequency ideal frequency response inverter box, which is basically consistent with that of A.N.THIELE speaker system, and the actual design effect is good. After the actual trial and simulation tests show that: low-frequency reverse phase speaker ideal frequency response segmentation processing method is successful, the design effect is satisfactory; our software developed in the box system parameters and corresponding parameters of the data-intensive degree than ANTHIELE table has further expansion and improvement, it has a certain amount of actual design inverted box value.