I had to measure the pulse durations and the frequency spectrum.

我必须测量脉冲的持续时间和频谱。

Repeat this process for all frequencies of sine waves and you get the frequency spectrum.

对正弦波的所有频率重复此过程，即可获得频谱。

But they also represent an area of the frequency spectrum. So if you look here, this is dialogue.

但它们也代表了频谱的一个区域。所以如果你看这里，这是对话。

And one of the distinguishing features of a Discreet Fourier Transform is that the frequency spectrum is also discreet and finite.

离散傅立叶变换的显着特征之一是频谱也是离散且有限的。

Thus far I've been thinking about signals as infinite continuous waves and when you take their Fourier transform, you get an infinite continuous frequency spectrum.

到目前为止， 我一直将信号视为无限连续波， 当你对其进行傅里叶变换时，你会得到无限连续的频谱。

Toothed species in general employ more of the frequency spectrum, and produce a wider variety of sounds, than baleen species (though the sperm whale apparently produces a monotonous series of high-energy clicks and little else).

齿鲸大都采用更多的频谱产生出各种声音，而须鲸采用的频谱则较少，尽管抹香鲸发出的只是单调而激烈的滴滴声。