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A comprehensive discrete-time computer modeling of acoustic Transmission Line loudspeakers

机译：声学传输线扬声器的全面离散时间计算机建模

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摘要

The Transmission Line loudspeaker is an audio loudspeaker enclosure topology devoted to extending the low frequency range near the loudspeaker frequency resonance. A few models based on physical properties of damped pipes have been proposed to characterize the Transmission Line loudspeaker systems. Unfortunately, Thiele/Small parameters, which are usually employed in enclosure designs, are not useful as parameters of design for these loudspeakers. In this paper, a comprehensive numerical formulation of a Transmission Line loudspeaker is presented, which is based in a finite difference approach of the governing equations, including the effects of the absorbing material allocated inside the pipe. The influence of the main empirical parameters is tested on the proposed model, which is also compared to a real prototype for validation purposes.
机译：传输线扬声器是一种音频扬声器外壳拓扑结构，致力于在扬声器共振频率附近扩展低频范围。已经提出了一些基于阻尼管物理特性的模型来表征传输线扬声器系统。不幸的是，通常在外壳设计中使用的Thiele / Small参数不能用作这些扬声器的设计参数。本文提出了一种传输线扬声器的综合数值公式，该公式基于控制方程的有限差分法，包括分配在管道内的吸收材料的影响。在所建议的模型上测试了主要经验参数的影响，并与真实原型进行了比较以进行验证。

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