语音信号微机处理系统的建立及面颌修复的频谱分析  

The design and the application of Speech Signal Processing System by computer in Stomatology

作　　者：罗建平[1] 樊森[1] 杨宠莹[1] 

机构地区：[1]上海第二医科大学口腔医学院修复学教研室

出　　处：《上海口腔医学》1995年第2期85-86,89,共3页Shanghai Journal of Stomatology

摘　　要：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。Abstract In this study we established a computer bases on Speech Signal Processing System and changes of formant frequencies of the vowel/i/accompany the changes in the oral cavity after maxillary surgery and prosthodontic reconstruction.The study found the F1 for vowel /i/ has no change,while the F2 peak significantly shifted between the preprosthetic and postprosthetic speaking condition after anterior resection of relative energy error value and the speech intelligible measured aurally (P<0. 05 ).

关 键 词：语音信号 微机处理系统 频谱分析 面颌修复 上颌修复体 语言理解度 

分 类 号：R782.2[医药卫生—口腔医学] TN912.35[医药卫生—临床医学]