Question

In the context of voice pathology, which acoustic measurement quantifies the cycle-to-cycle variability in the fundamental frequency of a voice signal?

Accepted Answer

The acoustic measurement that quantifies the cycle-to-cycle variability in the fundamental frequency—the lowest frequency of a periodic waveform, perceived as pitch—is called jitter. While a perfectly healthy voice maintains a steady vibration, jitter captures the tiny, involuntary fluctuations in how quickly the vocal folds open and close from one vibration cycle to the next. You can think of jitter like a metronome that is slightly inconsistent; even if the overall tempo remains the same, the tiny gaps between individual beats vary, just as the vocal folds vary slightly in their timing during a sustained vowel. Because these microscopic timing shifts are often linked to instability in the vocal folds or the neuromuscular control of the larynx, clinicians use jitter measurements to objectively assess vocal health and track the progression or recovery of various voice disorders.

In the context of voice pathology, which acoustic measurement quantifies the cycle-to-cycle variability in the fundamental frequency of a voice signal?

The acoustic measurement that quantifies the cycle-to-cycle variability in the fundamental frequency—the lowest frequency of a periodic waveform, perceived as pitch—is called jitter. While a perfectly healthy voice maintains a steady vibration, jitter captures the ti....

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In the context of voice pathology, which acoustic measurement quantifies the cycle-to-cycle variability in the fundamental frequency of a voice signal?

The acoustic measurement that quantifies the cycle-to-cycle variability in the fundamental frequency—the lowest frequency of a periodic waveform, perceived as pitch—is called jitter. While a perfectly healthy voice maintains a steady vibration, jitter captures the ti....

Community Answers