以彝语北部方言塞音为研究对象，运用实验语音学的方法对其进行物理信号采集，并对其进行声学特征分析。研究中使用语音分析工作站(Computerized Speech Lab(CSL 4500b))、MATLAB、Praat和AS等软件对语音信号进行处理，研究结果表明:①塞音发爆破音时从低频至高频会有强弱不等的能量聚集——"冲直条"，舌根音/g/、/k/、/gg/、/mg/出现双冲直条，甚至3条冲直条的现象。②依据VOT参数正负和长短来判断清浊和送气与否的方法，/b/、/p/、/d/、/t/、/g/、/k/的 VOT 为正值均为清音，/bb/、/nb/、/dd/、/nd/、/gg/、/mg/的 VOT 为负值是浊音，/p/、/t/、/k/为送气音，/b/、/g/、/d/为不送气音。③/ni/、/nd/、/mg/3个音都有鼻音共振峰的现象实证是鼻冠浊塞音。
Analysis and study of acoustic characteristics of consonants(plosive sounds)
This study focuses on the plosive sounds in the northern dialect of Yi language,using experimental phonetics to collect physical signals and analyze their acoustic characteristics.In the study,a speech analysis workstation(Computerized Speech Lab(CSL 4500b)),MATLAB,Praat,and AS software were used to process speech signals.The results showed that when plosive sounds are produced,there will be varying degrees of energy accumulation from low to high frequency-"straight lines"-in the case of tongue root sounds/g/,/k/,/g/,/mg/,double straight lines,or even three straight lines,that the method of determining voiced and aspirated sounds based on the positive and negative values and length of VOT parameters is as follows:positive VOT values for/b/,/p/,/d/,/t/,/g/,/k/are all voiced sounds,negative VOT values for/bb/,/nb/,/dd/,/gg/,/mg/are voiced sounds,/p/,/t/,/k/are aspirated sounds,and/b/,/g/,/d/are unaspirated sounds,and that the phenomenon of nasal resonance peaks in the sounds of/ni/,/nd/,and/mg/is confirmed to be nasal voiced plosives.
万方数据
维普
