Abstract：
UNASSIGNED: Literature suggests a dependency of the acoustic metrics, smoothed cepstral peak prominence (CPPS) and harmonics-to-noise ratio (HNR), on human voice loudness and fundamental frequency (F0). Even though this has been explained with different oscillatory patterns of the vocal folds, so far, it has not been specifically investigated. In the present work, the influence of three elicitation levels, calibrated sound pressure level (SPL), F0 and vowel on the electroglottographic (EGG) and time-differentiated EGG (dEGG) metrics hybrid open quotient (OQ), dEGG OQ and peak dEGG, as well as on the acoustic metrics CPPS and HNR, was examined, and their suitability for voice assessment was evaluated.
UNASSIGNED: In a retrospective study, 29 women with a mean age of 25 years (± 8.9, range: 18-53) diagnosed with structural vocal fold pathologies were examined before and after voice therapy or phonosurgery. Both acoustic and EGG signals were recorded simultaneously during the phonation of the sustained vowels /ɑ/, /i/, and /u/ at three elicited levels of loudness (soft/comfortable/loud) and unconstrained F0 conditions.
UNASSIGNED: A linear mixed-model analysis showed a significant effect of elicitation effort levels on peak dEGG, HNR, and CPPS (all p < .01). Calibrated SPL significantly influenced HNR and CPPS (both p < .01). Furthermore, F0 had a significant effect on peak dEGG and CPPS (p < .0001). All metrics showed significant changes with regard to vowel (all p < .05). However, the treatment had no effect on the examined metrics, regardless of the treatment type (surgery vs. voice therapy).
UNASSIGNED: The value of the investigated metrics for voice assessment purposes when sampled without sufficient control of SPL and F0 is limited, in that they are significantly influenced by the phonatory context, be it speech or elicited sustained vowels. Future studies should explore the diagnostic value of new data collation approaches such as voice mapping, which take SPL and F0 effects into account.
UNASSIGNED: In a retrospective study, 29 women with a mean age of 25 years (± 8.9, range: 18-53) diagnosed with structural vocal fold pathologies were examined before and after voice therapy or phonosurgery. Both acoustic and EGG signals were recorded simultaneously during the phonation of the sustained vowels /ɑ/, /i/, and /u/ at three elicited levels of loudness (soft/comfortable/loud) and unconstrained F0 conditions.
UNASSIGNED: A linear mixed-model analysis showed a significant effect of elicitation effort levels on peak dEGG, HNR, and CPPS (all p < .01). Calibrated SPL significantly influenced HNR and CPPS (both p < .01). Furthermore, F0 had a significant effect on peak dEGG and CPPS (p < .0001). All metrics showed significant changes with regard to vowel (all p < .05). However, the treatment had no effect on the examined metrics, regardless of the treatment type (surgery vs. voice therapy).
UNASSIGNED: The value of the investigated metrics for voice assessment purposes when sampled without sufficient control of SPL and F0 is limited, in that they are significantly influenced by the phonatory context, be it speech or elicited sustained vowels. Future studies should explore the diagnostic value of new data collation approaches such as voice mapping, which take SPL and F0 effects into account.
摘要：
■文献表明声学度量的依赖性，平滑倒频谱峰突出(CPPS)和谐波噪声比(HNR)，人的声音响度和基本频率（F0）。尽管这已经用声带的不同振荡模式来解释，到目前为止,没有具体调查。在目前的工作中,三个启发水平的影响，校准声压级(SPL),电音图（EGG）和时间微分EGG（dEGG）指标上的F0和元音混合开放商（OQ），dEGGOQ和峰值dEGG，以及声学指标CPPS和HNR，被检查,并评估了其语音评估的适用性。
■在一项回顾性研究中，在语音治疗或语音手术之前和之后，对29名平均年龄为25岁（±8.9，范围：18-53）的女性进行了检查。在持续元音的发声过程中，同时记录了声学和EGG信号/α/，/i/,和/u/在三个引起的响度水平(柔和/舒适/响亮)和不受约束的F0条件下。
■线性混合模型分析显示，激发努力水平对峰值dEGG有显著影响，HNR,和CPPS（所有p<0.01）。校准的SPL显著影响HNR和CPPS(均p<0.01)。此外，F0对峰dEGG和CPPS有显著影响(p<0.0001)。所有指标均显示出元音方面的显着变化（所有p<0.05）。然而,治疗对检查的指标没有影响，无论治疗类型如何(手术与语音治疗)。
■在没有充分控制SPL和F0的情况下进行采样时，用于语音评估目的的调查指标的值有限，因为它们受到语音语境的显著影响，无论是言语还是引起持续的元音。未来的研究应该探索新的数据整理方法的诊断价值，如语音映射，其中考虑了SPL和F0效应。
■在一项回顾性研究中，在语音治疗或语音手术之前和之后，对29名平均年龄为25岁（±8.9，范围：18-53）的女性进行了检查。在持续元音的发声过程中，同时记录了声学和EGG信号/α/，/i/,和/u/在三个引起的响度水平(柔和/舒适/响亮)和不受约束的F0条件下。
■线性混合模型分析显示，激发努力水平对峰值dEGG有显著影响，HNR,和CPPS（所有p<0.01）。校准的SPL显著影响HNR和CPPS(均p<0.01)。此外，F0对峰dEGG和CPPS有显著影响(p<0.0001)。所有指标均显示出元音方面的显着变化（所有p<0.05）。然而,治疗对检查的指标没有影响，无论治疗类型如何(手术与语音治疗)。
■在没有充分控制SPL和F0的情况下进行采样时，用于语音评估目的的调查指标的值有限，因为它们受到语音语境的显著影响，无论是言语还是引起持续的元音。未来的研究应该探索新的数据整理方法的诊断价值，如语音映射，其中考虑了SPL和F0效应。
