There's something happening to the vocals - best shown at around 0.46 to 0.52 where the 1st syllable of words when you're giving emphasis - it's aggressive/loud almost distorted - it may well be the reverb/delay or some other treatment causing it. Perhaps adjusting the compressor on the vocals to clamp down quickly and not allows the transients through will deal with it.


Cheers
rayc
"What's so funny about peace, love & understanding?" - N.Lowe