Spectrogram

A spectrogram is a visual representation of the frequency spectrum of a signal as it varies over time, typically showing time on the horizontal axis, frequency on the vertical axis, and intensity represented by color or brightness. In speech science and accessibility research, spectrograms are used to analyze the acoustic properties of speech, including formant frequencies, consonant bursts, voicing patterns, and prosodic features. Spectrograms are essential tools for speech-language pathologists assessing communication disorders, researchers developing speech recognition and synthesis systems, and clinicians analyzing infant vocalizations for developmental screening.