Intentional changes in sound pressure level and rate: Their impact on measures of respiration, phonation, and articulation
Intentional changes in sound pressure level and rate: Their impact on measures of respiration, phonation, and articulation
复制标题
DOI：
10.1044/jslhr.4105.1003
复制
发表时间：
1998-10-01
影响因子：
2.6
通讯作者：
Ramig, LO
中科院分区：
文献类型：
--
作者：
Dromey, C;Ramig, LO
本研究的目的是比较在句子产生过程中改变声压级（SPL）和频率对呼吸、发声和酸性发音行为的影响。10名受试者（5名男性和5名女性）在5 SPL和5速率条件下重复了“我又卖了一个菠萝”这句话。通过多通道记录，测量肺容量（LV）、SPL、基频（F（0））、三位标准差（STSD）、上下唇位移和峰值速度。大声讲话导致左心室起始、左心室终止、F（0）、STSD、发音位移和双唇峰值速度增加。这些发音测量中的标记间变异性一般随着SPL的增加而降低，而频率的增加与嘴唇运动变异性增加有关。男性的F（0）和男女的STSD随速率增加。下唇的位移变小了为了说话更快。作为速率的函数的速度变化的扬声器之间的差异与更一致的速度性能形成对比：扬声器SPL的变化。由于SPL和速率变化是针对构音障碍的治疗，目前的数据表明未来的研究方向与障碍扬声器。
The purpose of the study was to compare the effects of changing sound pressure level (SPL) and rate on respiratory, phonatory, acid articulatory behavior during sentence production. Ten subjects, 5 men and 5 women, repeated the sentence, "I sell a sapapple again," under 5 SPL and 5 rate conditions. From a multi-channel recording, measures were made of lung volume (LV), SPL, fundamental frequency (F(0)), semitone standard deviation (STSD), and upper and lower lip displacements and peak velocities. Loud speech led to increases in LV initiation, LV termination, F(0), STSD, and articulatory displacements and peak velocities for both lips. Token-to-token variability in these articulatory measures generally decreased as SPL increased, whereas rate increases were associated with increased lip movement variability I.V excursion decreased as rate increased. F(0) for the men and STSD for both genders increased with rate. Lower lip displacements became smaller For faster speech. The interspeaker differences in velocity change as a function of rate contrasted with the more consistent velocity performance across :speakers for changes in SPL. Because SPL and rate change are targeted in therapy for dysarthria, the present data suggest directions for future research with disordered speakers.