A spectrogram is like a visual voiceprint of whatever made the sound.

声谱图就像发出声音的视觉声纹。

And Mel had his own voiceprint.

梅尔有自己的声纹。

One glossy brochure featured technology that could not just intercept phone calls, but identify the caller, regardless of what phone number they were using, based on their unique voiceprint, and then identify their exact geographic location.

一本光鲜亮丽的小册子介绍的技术不仅可以拦截电话，而且可以根据来电者独特的声纹识别来电者， 无论他们使用的是什么电话号码，然后确定他们的确切地理位置。

It can sound real close to him, but then when you start to do sentences, it becomes very difficult for anybody to sound like him because everybody has their own voiceprint.

听起来很接近他，但是当你开始造句子时，任何人都很难听起来像他，因为每个人都有自己的声纹。