What does a jitter measure of less than or equal to 1.040% suggest?

A jitter measure of less than or equal to 1.040% suggests that the voice is healthy. Jitter is a measure of the frequency variation between consecutive cycles of vocal fold vibration, and lower values typically indicate a more stable and controlled vocal function. When jitter values fall within this specific range, it is generally interpreted as a sign that there are no significant fluctuations or irregularities in the voice production, which correlates with good vocal health.

Higher jitter values, on the other hand, would indicate potential issues with voice quality or the presence of a voice disorder, as increased variability in frequency can point to irregularities in vocal fold vibration. Therefore, a jitter measure within this healthy range serves as an important benchmark for assessing voice quality and stability.