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目的:运用计算机语音处理系统(computerspeechlab,CSL)对咽成形术后语音障碍患者的异常辅音(塞擦音、擦音)进行治疗前、后的语音频谱分析,以期对腭咽成形术后患者的语音治疗效果进行定量和图形化分析。方法:腭咽成形术后存在语音障碍患者(清晰度<35%)40例,男24例,女16例,平均年龄11.48岁。语音治疗前、后分别将辅音音节、字表、词组和短句输入CSL,通过频谱图对含塞擦音(z、c、j、q)和擦音(s、x)的音节(zi、ci、si、ji、qi、xi)中的辅音除阻段的嗓音起始时间(VOT)进行分析,得出量化值,进行统计学分析;在频谱图上,根据治疗前、后有无冲直条和乱纹分布情况进行归纳,评价语音治疗效果,以此评判CSL的应用价值。用SPSS11.5软件包对数据进行t检验。结果:CSL测定结果显示,40例患者的VOT值由治疗前的0.0571s提高到治疗后的0.2262s,经t检验,P<0.01,具有显著差异;频谱图结果显示,代表塞的冲直条由治疗前消失到治疗后清晰可见或以整齐乱纹开始(z36/40、c30/40、j34/40、q28/40),代表擦音的乱纹由治疗前稀疏或消失到治疗后的均匀整齐,并有强频集中区。结论:运用CSL检测分析得出,腭咽成形术后严重语音障碍患者可通过语音治疗达到近似正常人的语音清晰度。CSL的定量和图形化分析,提高了语音治疗效果评价的水平。
OBJECTIVE: To analyze the speech spectrum before and after the treatment of abnormal consonants (scrubs and fricatives) in patients with dysphagia after pharyngeal angioplasty using computerspeechlab (CSL) Voice therapy effects quantitative and graphical analysis. Methods: Forty patients with speech impairment (clarity <35%) after velopharyngeal angioplasty, 24 males and 16 females, with an average age of 11.48 years. The consonant syllables, word lists, phrases and phrases are entered into the CSL before and after the speech therapy, and the syllables containing zigzag (s, z) and syllables (z, c, ci, si, ji, qi, xi) consonants in addition to block the voice of the start time (VOT) analysis, come to quantitative values for statistical analysis; in the spectrogram, according to whether the treatment before and after the red Straight lines and the distribution of random pattern summary, evaluation of speech therapy, in order to judge the value of CSL. Data was t-tested using SPSS 11.5 software package. Results: The results of CSL showed that the VOT values of 40 patients increased from 0.0571s before treatment to 0.2262s after treatment, and there was significant difference by t-test (P <0.01) Disappear from the treatment before treatment can be clearly seen or tidy streak began (z36 / 40, c30 / 40, j34 / 40, q28 / 40), on behalf of fricative rubbing pattern before treatment by sparse or disappear to the treatment after the uniform Tidy, and strong frequency area. CONCLUSIONS: Using CSL detection and analysis, we found that patients with severe speech impairment after velopharyngeal angioplasty can reach the voice of normal people by voice therapy. Quantitative and graphical analysis of CSL improves the evaluation of speech therapy.