Monitoring subglottal neck-surface acceleration has received renewed attention due to the ability of low-profile accelerometers to confidentially and noninvasively track properties related to normal and disordered voice characteristics and behavior. This study investigated the ability of subglottal neck-surface acceleration to yield vocal function measures traditionally derived from the acoustic voice signal and help guide the development of clinically functional accelerometer-based measures from a physiological perspective. Results are reported for 82 adult speakers with voice disorders and 52 adult speakers with normal voices who produced the sustained vowels /a/, /i/, and /u/ at a comfortable pitch and loudness during the simultaneous recording of radiated acoustic pressure and subglottal neck-surface acceleration. As expected, timing-related measures of jitter exhibited the strongest correlation between acoustic and neck-surface acceleration waveforms (r ≤ 0.99), whereas amplitude-based measures of shimmer correlated less strongly (r ≤ 0.74). Additionally, weaker correlations were exhibited by spectral measures of harmonics-to-noise ratio (r ≤ 0.69) and tilt (r ≤ 0.57), whereas the cepstral peak prominence correlated more strongly (r ≤ 0.90). These empirical relationships provide evidence to support the use of accelerometers as effective complements to acoustic recordings in the assessment and monitoring of vocal function in the laboratory, clinic, and during an individual's daily activities.

中文翻译：

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从声学麦克风和声门下颈部表面加速度计得出的声音功能测度之间的关系。

由于低调加速度计能够秘密和无创地跟踪与正常和混乱的语音特征和行为有关的特性，因此监测声门下颈部表面加速度已引起了新的关注。这项研究调查了声门下颈部表面加速度产生传统上从声音信号中导出的声音功能指标的能力，并从生理学角度帮助指导基于临床功能的加速度计的指标的发展。报告了82位患有语音障碍的成人说话者和52位具有正常声音的成人说话者的结果，在同时记录辐射声压和声门下时，它们以舒适的音调和响度产生了持续元音/ a /，/ i /和/ u /颈部表面加速。不出所料 与时间相关的抖动量度在声学和颈部表面加速度波形之间表现出最强的相关性（r≤0.99），而基于幅度的闪烁量度的相关性则不那么强（r≤0.74）。此外，谐波和噪声比（r≤0.69）和倾斜（r≤0.57）的频谱测量显示出较弱的相关性，而倒谱峰的突出程度则更强（r≤0.90）。这些经验关系提供了证据，以支持在实验室，诊所以及个人日常活动中，在评估和监控声音功能时，将加速度计作为声学记录的有效补充。而基于幅度的闪烁测量则相关性较小（r≤0.74）。此外，谐波和噪声比（r≤0.69）和倾斜（r≤0.57）的频谱测量结果显示出较弱的相关性，而倒谱峰的突出程度则更相关（r≤0.90）。这些经验关系提供了证据，以支持在实验室，诊所以及个人日常活动中，在评估和监控声音功能时，将加速度计作为声学记录的有效补充。而基于幅度的闪烁测量则相关性较小（r≤0.74）。此外，谐波和噪声比（r≤0.69）和倾斜（r≤0.57）的频谱测量结果显示出较弱的相关性，而倒谱峰的突出程度则更相关（r≤0.90）。这些经验关系提供了证据，以支持在实验室，诊所以及个人日常活动中，在评估和监控声音功能时，将加速度计作为声学记录的有效补充。