apq

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。