One is 184k, the other is 219k. I assume the 1 and 2 ending the file names correspond to original and re-record. I also notice an approximately 1 second difference in length favoring file 2, so I doubt this is a sound-activated recording issue.
It's very slight, but it does sound like there is some sort of booster or effect that is 'warming' the sound. You may want to check any effects within the software to see if anything like that could be an issue.