醫聞診現代化之研究（二）陰虛患者之語音分析

羅綸謙 
中國醫藥學
中醫聞診以患者聲音之變化協助診斷，為臨床辨症重要的一環，但其作業過程缺乏客觀之標準，亦未曾進行精確的測量與驗証，本項研究以「陰虛」患者為對象，借助現代語音分析之技術，對其聲音加以分析，以瞭解聞診辨症的微觀變化。

在中國醫藥學院附設醫院中醫門診篩選陰虛患者60名為實驗組，另60名非虛者為對照組，錄取母音/a/三短聲，每一短聲約一秒鐘，將錄取之有效聲波分成八等分，擷取有效語音之前段、中段及後段之語音波形作分析，亦即取其1/8、4/8、6/8處之波，每處由波峰起取100 msec長度(約? Q個週期波)，依次定義為F(front)波、M(medium)波、E(end)波，加以比較分析。以往對虛症患者語音初步觀察結果如下：

一、時域軸分析顯示：
1.虛症患者的聲波表現不穩定，F、M、E三波差異性較非虛者為大。
2.虛症患者的波峰(P)與波谷(V)的高度不能維持穩定，與非虛者有顯著的不同。

二、頻域軸分析顯示：
陰虛患者所發出母音/a/，經由頻域軸分析，除在共振頻率點之波形外，會有奇異尾波的現象，而非虛組則無。
以上僅為中醫聞診圖形化的初步成果，如能繼續深入研究，必能有更多重要的發現，值得進一步的開發。

關鍵字：中醫聞診，陰虛，語音分析

A study of voice analysis on Yin-vacuity patients-The modernization of 　　 auscultation in Chinese medicine

Auscultation using patients voice changes for diagnosis is an essential issue in traditional Chinese medicine. However, its procedure fell short of objective standard, and it had never undergone precise measurement and testing. This study involving the modern technique of voice analysis was applied to Yin-vacuity patients in order to understand their microscopic auscultatory changes.

60 Yin-vacuity patients screened from our clinic of Chinese medical department, were taken as the study group. While another 60 "non-deficient" patients as control group. We recorded the vowel /a/ in 3 short notes, each note lasting about 1 second. By dividing the recorded voice utterance into 8 segments, we look the early, middle and late part of the sound wave from the voice utterance for analysis. That is, from the 1/8, 4/8 and 6/8 segment of the wave, each from peak of wave to about the 100msec length (about 10 wave forms), we defined them as F wave, M wave and E wave, and further analyzed them
關鍵字：Auscultation, Yin-vacuity, Voice analysis