Spectrography
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A graphic display of a sound signal wherein frequency and intensity are plotted over time. Both glottal and supraglottal influences on the sound signal can be evaluated, including vowel type, voiced and voiceless transitions, vibrato rate and extent, aspiration, coarticulation, and influence of the epilarynx. In a periodic signal, the fundamental frequency is displayed as the lowest energy horizontal line in the spectrogram. Formants are displayed as bands or concentrations of frequencies above the fundamental. Turbulent or transient noise can be seen as fill-in between the horizontal harmonic lines.[1]
- ↑ "NATS July 2022 Pedagogy Workshop Working Group Three Science-Informed Terminology and Definitions for Voice Pedagogy" (PDF). Science-Informed Voice Pedagogy Resources. Retrieved March 7 2025.
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