本文選題：子帶 + 濾波器組　； 參考：《聲學(xué)學(xué)報(bào)》2014年06期

【摘要】：針對腭裂患者易出現(xiàn)塞音弱化或消失的現(xiàn)象,提出了一種基于塞音段爆破能量檢測的腭裂康復(fù)手術(shù)客觀評價(jià)方法。該方法采用類聽覺的濾波器組作為處理前端,并對處理后得到的信號在其各子帶內(nèi)分別計(jì)算塞音除阻過程中的能量變化率。對腭裂組和術(shù)后對照組的平均子帶能量變化率進(jìn)行了比對,結(jié)果表明腭裂組在高頻段(子帶中心頻率從209.8 Hz至8000 Hz)具有較小的除阻能量變化率。對不送氣清塞音/d/、/b/進(jìn)行了實(shí)驗(yàn),Logistic回歸表明提出的方法與主觀判聽一致性在音節(jié)/di/和/bu/上分別達(dá)到88.9%和90.27%。
[Abstract]:In view of the phenomenon of weakening or disappearing of stoppers in cleft palate patients, an objective evaluation method of cleft palate rehabilitation surgery based on energy measurement of choke segment blasting is proposed.In this method, the auditory filter bank is used as the front end of the processing, and the energy change rate of the processed signal in each subband is calculated respectively.The mean energy change rate of subband in cleft palate group was compared with that in postoperative control group. The results showed that cleft palate group had a small rate of energy change in high frequency range (from 209.8 Hz to 8000 Hz).The logistic regression analysis of the non-aspirated / voiceless r / d / / b / showed that the consistency of the proposed method and the subjective judgment was 88.9% and 90.27% in the syllable / / and / or / and / and / or syllable, respectively.
【作者單位】： 中國科學(xué)院聲學(xué)研究所語言聲學(xué)與內(nèi)容理解重點(diǎn)實(shí)驗(yàn)室;北京交通大學(xué)信息科學(xué)研究所;北京大學(xué)口腔醫(yī)學(xué)院;
【基金】：國家自然科學(xué)基金(60875014,60772039)資助項(xiàng)目
【分類號】：R782.22

【參考文獻(xiàn)】

相關(guān)期刊論文 前9條

1 楊增杰;陳仁吉;穆s，

本文編號：1740842