Department of ENT, Ain Shams University; Assistant professor of Phoniatrics, Cairo, Egypt.
Communicative Disorders and Sciences Department, University at Buffalo, Buffalo, NY, USA.; Faculty of Medicine - Fayoum University, Fayoum, Egypt.
J Voice. 2023 Jul;37(4):496-503. doi: 10.1016/j.jvoice.2021.03.008. Epub 2021 Apr 27.
This study initially investigated the relationship between Fundamental Frequency and Jitter Percent across and within MDVP and PRAAT. Subsequently, it explored if the measured acoustic signal's Length or the analysis temporal segment selection impacts potential correlation across the tools' measures.
We collected forty-two Maximum Phonation Time acoustic signals from 10 participants with Healthy Voices in a standardized setting. We excluded from enrollment any potential participants having a history of voice disorders or showing an abnormality in a pre-study assessment.
There is no correlation between Jitter percent's values and Fundamental Frequency within either Tool in our healthy voice samples. The Length of the acoustic signal and temporal analysis selection impact the correlation between Jitter Percent measurements across the two tools; The correlation between Fundamental Frequency measurements across the devices was not affected. Means of Fundamental Frequency did not differ across the two devices but show a persistent pattern of greater values in MDVP. Jitter Percent measurements were significantly higher in MDVP CONCLUSIONS: There is a potential for clinicians using PRAAT assessments in the clinic to make inferences from research using MDVP as an analysis tool. Further work is needed in patients with Voice disorders to explore that possibility.
本研究最初调查了 MDVP 和 PRAAT 中基频和抖动百分比在跨工具和工具内的关系。随后，它探讨了测量的声学信号的长度或分析时间片段选择是否会影响工具测量之间的潜在相关性。
我们在标准化设置中从 10 名健康声音参与者中收集了 42 个最大发声时间声学信号。我们排除了任何有声音障碍病史或在预研究评估中表现出异常的潜在参与者。
在我们的健康声音样本中，无论是在哪个工具内，Jitter percent 的值与基频之间都没有相关性。声学信号的长度和时间分析选择会影响两个工具之间 Jitter Percent 测量的相关性；工具之间的基频测量的相关性不受影响。两个设备的基频平均值没有差异，但 MDVP 显示出更高的数值模式。Jitter Percent 测量在 MDVP 中显著更高。
在诊所使用 PRAAT 评估的临床医生可以从使用 MDVP 作为分析工具的研究中得出推论。需要在有声音障碍的患者中进一步研究这种可能性。
