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现有的许多音频放大器都采用各种各样的、与普通反馈稍有不同的误差校正技术。这些技术中有两种较普通的误差校正电路应单独提出，它们都包含有主要和辅助通路。辅助放大器作用于一个由于主通路偏离期望值而产生的误差信号。在每种误差校正电路中分别确定传输函数、总增益变换灵敏度、稳定准则。指明除了真正的前馈以外，就放大器的变换灵敏度而言，其它的电路并不比普通的反馈有更多的优点。前馈频率补偿是带有有源误差反馈的误差校正电路的特例。前馈补偿将在类似文献中详细讨论。
Many existing audio amplifiers employ a wide variety of error correction techniques that are slightly different from normal feedback. Two of the more common types of error correction circuits in these technologies are proposed separately, and they contain both primary and secondary paths. The auxiliary amplifier acts on an error signal due to the deviation of the main path from the desired value. The transfer function, the total gain conversion sensitivity and the stability criterion are respectively determined in each error correction circuit. Indicates that in addition to the real feed forward, the other circuits do not have more advantages than normal feedback in terms of the amplifier’s switching sensitivity. Feed-forward frequency compensation is a special case of an error correction circuit with active error feedback. Feedforward compensation will be discussed in detail in similar literature.