显见，动态阈是用准峰值电平表示，而信噪比则是用准平均值电平表示的，两者的区别是显而易见的了。

Obviously, the dynamic threshold is to use quasi-peak level that, while the signal to noise ratio is expressed with the quasi-average levels, and the difference is obvious in.

youdao

因为通常电声设备技术指标给出的是噪声准平均值电平，而不是噪声准峰值电平，这一点应加以注意。

Because normally the electro-acoustic equipment, technical specifications are given quasi-average noise level, rather than quasi-peak noise level, this should be noted.

youdao