The fundamental frequency and bass were lower in diseased group. The percentage of jitter increased and the percentage of fundamental frequency decreased with severity.

 
  • 试验组的基频和低音明显降低 ,随室带肥厚程度的加重 ,微扰百分值的检出率有增高的倾向 ,而基频和低音频率则有下降的倾向。
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