PDF(Pubmed)
Abstract：
OBJECTIVE: A case study was used to determine which acoustic parameters would be sensitive to a SOVT-based vocal warm-up over the duration of a standard voice treatment.
METHODS: The longitudinal research design consisted of repeated voice measures during 7 weeks from a single subject, a 48-year-old male occupational voice user with a history of voice disorders. A steady phonation and running speech tasks were performed before and after an intensive 1-minute water-resistance voice exercise (WRT). Acoustic assessment of the pre-and postrecordings from each session was obtained with freely accessible software (e.g., Audacity, PRAAT) and acoustic measures (e.g., fundamental frequency, jitter, shimmer, alpha ratio, NHR, HNR, L1L0, Cepstral Peak Prominence smoothed).
RESULTS: After WRT, the analysis indicated that jitter, shimmer, and NHR had a small but statistically significant decrease, while alpha ratio, CPPS, and HNR had a statistically significant increase. For the days where there were six repetitions, there was a larger effect in the later repetitions in the day for some metrics (i.e., alpha ratio, shimmer, NHR, CPPS), while others had the biggest effect in the first two repetitions in a day (i.e., jitter, HNR).
CONCLUSIONS: A short vocal water-resistance voice task had a positive effect on the short-term acoustic voice metrics after each repetition of the exercise, independent of the number of repetitions throughout the day. When five repetitions of this exercise routine occurred, there was a more substantial influence on the proportion of acoustic voice changes.
METHODS: The longitudinal research design consisted of repeated voice measures during 7 weeks from a single subject, a 48-year-old male occupational voice user with a history of voice disorders. A steady phonation and running speech tasks were performed before and after an intensive 1-minute water-resistance voice exercise (WRT). Acoustic assessment of the pre-and postrecordings from each session was obtained with freely accessible software (e.g., Audacity, PRAAT) and acoustic measures (e.g., fundamental frequency, jitter, shimmer, alpha ratio, NHR, HNR, L1L0, Cepstral Peak Prominence smoothed).
RESULTS: After WRT, the analysis indicated that jitter, shimmer, and NHR had a small but statistically significant decrease, while alpha ratio, CPPS, and HNR had a statistically significant increase. For the days where there were six repetitions, there was a larger effect in the later repetitions in the day for some metrics (i.e., alpha ratio, shimmer, NHR, CPPS), while others had the biggest effect in the first two repetitions in a day (i.e., jitter, HNR).
CONCLUSIONS: A short vocal water-resistance voice task had a positive effect on the short-term acoustic voice metrics after each repetition of the exercise, independent of the number of repetitions throughout the day. When five repetitions of this exercise routine occurred, there was a more substantial influence on the proportion of acoustic voice changes.
摘要：
目的：一项案例研究用于确定在标准语音治疗期间哪些声学参数对基于SOVT的声音热身敏感。
方法：纵向研究设计包括在7周内对单个受试者进行重复的语音测量，一名48岁的男性职业语音用户，有语音障碍史。在密集的1分钟防水语音练习（WRT）之前和之后，进行了稳定的发声和跑步语音任务。使用可免费访问的软件（例如，Audacity,PRAAT)和声学措施(例如，基频,抖动,shimmer,阿尔法比率，NHR,HNR,L1L0，倒谱峰顶度平滑）。
结果：在WRT之后，分析表明，抖动，shimmer,NHR有一个很小但有统计学意义的下降，而阿尔法比率，CPPS,HNR有统计学上的显著增加。在有六次重复的日子里，对于某些指标，在当天的后期重复中有较大的影响(即，阿尔法比率，shimmer,NHR,CPPS)，而其他人在一天的前两次重复中产生了最大的影响(即，抖动,HNR）。
结论：每次重复运动后，简短的声带防水语音任务对短期声学语音指标有积极影响，与一天中的重复次数无关。当这个练习程序重复五次时，对声音变化的比例有更大的影响。
方法：纵向研究设计包括在7周内对单个受试者进行重复的语音测量，一名48岁的男性职业语音用户，有语音障碍史。在密集的1分钟防水语音练习（WRT）之前和之后，进行了稳定的发声和跑步语音任务。使用可免费访问的软件（例如，Audacity,PRAAT)和声学措施(例如，基频,抖动,shimmer,阿尔法比率，NHR,HNR,L1L0，倒谱峰顶度平滑）。
结果：在WRT之后，分析表明，抖动，shimmer,NHR有一个很小但有统计学意义的下降，而阿尔法比率，CPPS,HNR有统计学上的显著增加。在有六次重复的日子里，对于某些指标，在当天的后期重复中有较大的影响(即，阿尔法比率，shimmer,NHR,CPPS)，而其他人在一天的前两次重复中产生了最大的影响(即，抖动,HNR）。
结论：每次重复运动后，简短的声带防水语音任务对短期声学语音指标有积极影响，与一天中的重复次数无关。当这个练习程序重复五次时，对声音变化的比例有更大的影响。
