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对通常静态状态反馈中所使用的控制定律采用了一种新型的直接形式表示法，它有利于扬声器系统的线性化。与积分去耦形式相比，计算效率更高、需要的扬声器参数更少，而且易于在使用定点格式的信号处理器上实现。直接形式的控制定律可应用于采用不同声幅射辅助措施（密闭箱系统、开口箱系统）的扬声器系统且无需进行内部状态的测量和声参数的全面识别。对反馈线性化和前馈滤波器技术（沃特拉滤波器、镜像滤波器）间的关系进行了讨论。
A new direct form of representation is used for the control law used in the usual static state feedback, which facilitates the linearization of the loudspeaker system. Comparing with the integral decoupling form, it is more computationally efficient, requires fewer loudspeaker parameters, and is easy to implement on signal processors that use fixed-point formats. The direct form of control law can be applied to loudspeaker systems with different acoustic radiations (closed box systems, open box systems) without the need for internal state measurements and full recognition of acoustic parameters. The relationship between feedback linearization and feedforward filter techniques (Vothura filters, image filters) is discussed.