The frequency pseudocolor-coded speech spectrogram is then obtained by means of a sampling narrow slit placed at Fourier plane in white-light optical spectrum analyzer.

然后在白光光学频谱分析系统中，利用放置在傅里叶频谱面上的取样狭缝得到按频率假彩色编码的频谱图。

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Using the invariable characteristics of PCNN time series and entropy series of Spectrogram, people can extract the feature of speakers speech and recognize the speakers rapidly and effectively.

该方法将语谱图输入到PCNN后得到输出图像的时间序列及其熵序列作为说话人语音的特征，利用它的不变性实现说话人识别。

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This paper will discuss the role of spectrogram in speech training for the hearing-impaired with special reference to the understanding of cognitive psychology and practical cases.

发音学习过程是一个自动化程序认知过程，本文结合实际案例从认知心理学的各个过程分析语谱图在聋人语训中的作用与效果。

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But audio experts say that the basic principles the CIA uses are likely the same ones that have driven the field of voice recognition since the 1940s: use of a spectrogram, a visual representation of the frequencies of human speech.

NPR: Bin Laden Tape Won't Raise Security Levels