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本研究运用微机开发了计算机辅助的语音信号处理系统,并运用该系统对上颌骨术后及颌骨修复后的病例进行元音/i/的频谱共振峰及相对能量误差法分析。分析显示在术前及修复前后三个阶段,元音/i/的共振峰值明显地出现漂移,F1峰值位置无改变,而F2、F3峰值则术后低于术前;修复体修复后F2,F3回复至较高值,相对能量误差和耳测语言理解度的相关分析结果显示它们间有相关关系。
In this study, a computer-aided speech signal processing system was developed by computer. The system was used to analyze the vowel / i / spectral resonance peaks and the relative energy error analysis of the maxillary and post-maxillofacial surgery. The analysis showed that the resonance peak of vowel / i / obviously drifted preoperatively and before and after the repair, the peak position of F1 did not change, while the peak of F2 and F3 was lower than preoperatively. The values of F2, F3 returned to a higher value, relative energy error and ear language test results of the correlation analysis showed that there is a correlation between them.