Methods Fundamental Frequency(F 0),Formant,shimmer,jitter,acoustic time-territory waveform and diagram among 26 tracheooesophageal and 32 normal speakers were examined by using USSA and the difference between the two groups were analyzed.

• 方法 应用通用信号频谱分析系统 (USSA)对2 6例气管食管音及 32例正常语音的基频、共振峰、微扰、时域波形及语图进行分析。