Definition of spectrogram in US English:



  • A photographic or other visual or electronic representation of a spectrum.

    • ‘The picture below shows six sound spectrograms, top to bottom.’
    • ‘Nowadays, most spectrograms map frequency to a predefined color table to visually clarify the plot.’
    • ‘For the study of vowels and consonants, the waveform is presented as a spectrogram, on which sounds appear as recognizable visual patterns.’
    • ‘As I was trained as a linguist, I of course studied spectrograms and sound analyses.’
    • ‘By listening to the booms and looking at their spectrograms, the scientists can distinguish between individual bitterns and count them more accurately.’