方法：以喉声图仪采集、分析146例正常老年人嗓音声样。
Method :To collect and analyze 146 voice samples of the normal aged with sonogram.
目的：综合分析正常老年人嗓音变化的特征。方法：以喉声图仪采集、分析146例正常老年人嗓音声样。
Objective: to measure the voice samples of the normal aged in order to systemically study the features of the voice changes.
部分喉疾病组的频谱或相关曲线，以及声图具有较为特征性表现。
Some disease group showed distinct features in their spectrogram, correlogram and sonogram.
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