Department of Speech Pathology and Audiology, Cleveland State University, Cleveland, OH 44115-2214, USA.
J Voice. 2012 May;26(3):341-50. doi: 10.1016/j.jvoice.2011.05.007. Epub 2011 Sep 1.
This study investigated whether there were differences in the acoustic measures of fundamental frequency (Fo), jitter, intensity, and shimmer of older amateur singers and nonsingers and whether there were significant correlations between these acoustic measurements and listener judgments of speaker age.
Acoustic measurements were obtained on 60 speaker participants from a sustained vowel production. Study participants included 30 male and female singers and 30 male and female nonsingers between the ages of 65 and 80 years. In addition, 10 speech-language pathology graduate students were recruited as listener participants to estimate the age of speaker participants from recorded vowel sounds.
The results of this study indicate that participants were perceived as significantly younger than their real ages, and male and female singers were perceived to be significantly younger than male and female nonsingers. Significant differences were found between male and female singers and nonsingers regarding jitter and intensity, with singers displaying significantly less jitter and significantly greater intensity than nonsingers. Perceived age was found to be related to jitter in male singers and nonsingers and female singers. Perceived age was found to be related to intensity in female nonsingers. No statistically significant differences were found between singers and nonsingers regarding Fo or shimmer. No significant correlations were found between perceived age and intensity in male singers, male nonsingers, or female singers.
Acoustic and auditory-perceptual features of the aging voice appear to be factors associated with participation in amateur singing.
本研究旨在探讨老年业余歌唱者和非歌唱者在基频（Fo）、抖动、强度和颤动等声学测量方面是否存在差异，以及这些声学测量与听众对说话者年龄的判断之间是否存在显著相关性。
对 60 名参与者在持续发元音时进行了声学测量。研究参与者包括 30 名年龄在 65 至 80 岁之间的男女歌手和男女非歌手。此外，还招募了 10 名言语病理学研究生作为听众参与者，根据录制的元音声音来估计参与者的年龄。
本研究的结果表明，参与者被认为比实际年龄年轻得多，男性和女性歌手比男性和女性非歌手年轻得多。歌手和非歌手之间在抖动和强度方面存在显著差异，歌手的抖动明显较少，强度明显较大。发现感知年龄与男性歌手和非歌手以及女性歌手的抖动有关。发现感知年龄与女性非歌手的强度有关。在 Fo 或颤动方面，歌手和非歌手之间没有统计学上的显著差异。在男性歌手、男性非歌手或女性歌手的感知年龄与强度之间未发现显著相关性。
衰老声音的声学和听觉感知特征似乎是参与业余歌唱的相关因素。
