Results There were remarkable differences between esophageal speaker and normal subjects in jitter, shimmer, harmonics to noise ratio and normalized noise energy except...

• 结论食管发音的声学特性与正常男性相比有显著差别,声音稳定性差、声时短、音调低钝,但食管发音仍是喉全切除术后患者获得发音的一种重要途径。