Help, Audio quality is losing (first time face this problem)

hi, could anyone help me figure out what happened with my audio?

i have audio files with enough, not that bad, audio quality.

when i add to Animate it sounds rather wierd like compressed, and then when i export it, it still sounds that bad.

i compare them by played in Media player, wow, the quality between the two really different.

although our studio new with Animate, but it seems just new problem that we never face before.

if you wanna know, i attach all 2 files, samples original audio and rendered mp4.