摘要
目的 :为变声后“假声”的命名、诊断、治疗及疗效评价提供科学、客观的理论依据。方法 :用计算机采集变声后“假声”患者 15例 (患者组 )、正常青年男性 12例 (青年男性对照组 )、女性13例 (青年女性对照组 )、正常儿童 12例 (儿童对照组 )的舒适话声 /a/、/i/音及青年男性对照组、青年女性对照组的舒适假声 /a/、/i/音 ,均持续 3s ,将声样进行声学分析。结果 :患者组元音 /a/、/i/的平均基频 (MF0 )、最高基频 (Fhi)和最低基频 (Flo) ,与青年女性对照组的话声接近 (P >0 .0 5 ) ,明显低于儿童对照组和青年男性、女性对照组的假声 (P <0 .0 5 ) ;频率微扰 (Jitter)与频率微扰商 (PPQ)明显高于其他各组 (P <0 .0 5 ) ;基频变异 (vF0 )与各组比较 ,差异无显著性意义(P >0 .0 5 ) ;患者组 /a/音的振幅微扰 (Shimmer)与振幅变异 (vAm ) ,明显高于其他组 (P <0 .0 5 ) ,振幅微扰商 (APQ)虽高于其他组 ,但无显著性意义 ;患者组 /i/音的Shimmer和APQ明显高于青年男性对照组的假声 (P <0 .0 5 ) ,vAm明显高于青年男性、女性对照组 (P <0 .0 5 ) ;谐噪比 (HNR)各组中假声的数值最小 ;嗓音紊乱指数 (VTI)患者组和青年男性、女性对照组的假声的数值较青年男性、女性对照组的话声低 ;软发声指数 (SPI)患者组高于其?
Objective:Set an objectively scientific foundation for name, diagnosis, therapy and assessment of mutational falsetto.Method:We analyzed the acoustic samples of patients by computer. 15 patients, 12 normal young men, 13 normal young women and 12 normal children were asked to produced comfortable modal vowel /a/ and /i/, sustained 3 seconds. The falsetto /a/ and /i/ were only collected from young men and women. The acoustic parameters were compared between any two groups.Result:Both vowel /a/ and /i/, the fundamental frequency, highest fundamental frequency and lowest fundamental frequency of patients are closed to young women's (P> 0.05 ). Jitter percent and pitch perturbation quotient is significantly higher than other groups (P< 0.05 ). Fundamental frequency variation has no significant difference between groups, but the patients' mean is higher than others. Shimmer percent and peak to peak amplitude variation of patients' vowel /a/ are distinctly greater than other groups. Amplitude perturbation quotient of vowel /a/ has no significance between groups, but the patients' group is higher than others. Shimmer percent, peak to peak amplitude variation and amplitude perturbation of vowel /i/ has no significant difference between most groups, but the results of patients are the biggest. Noise to harmonic ratio of falsetto is the lowest among all groups. Voice turbulence index of the patients and falsetto is lower than that of others. Soft phonation index of patients is higher than other groups and near to falsetto, vowel /i/ is more significant than /a/. The children falsetto and the patients have voice break.Conclusion:Mutational 'falsetto' is not really falsetto,but rather similar to female's voice.To lower fundamental frequency and improve chest resonance is the key of treatment. Both psychotherapy and voice training are important. We can try to use rigid phonation to treat patients.
出处
《临床耳鼻咽喉科杂志》
CSCD
北大核心
2003年第6期332-335,共4页
Journal of Clinical Otorhinolaryngology
关键词
变声后“假声”
声学分析
青少年
Mutational 'falsetto'
Acoustic analysis
Adolescence
