After treatment of the test group, the acoustical parameters maximum phonation time ( MPT), frequency perturbation quotient ( FPQ), amplitude perturbation quotient ( APQ), ratio of harmonic to noise ( H/ N) objectively reflected improvement of voice quality.
试验组患者治疗前后的声时、频率微扰商、振幅微扰商、谐噪比声学参数也客观地反映了治疗后嗓音质量的提高。
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