Spartan Ops dialogue too quiet

Does the dialogue in spartan ops seem too quiet for anyone else. The music and gunshots and everything make it so i cant hear what they are saying and as far as i can tell you cant change the volume of the audio tracks seperately. is there anyway to raise the volume of the dialogue. I have to play wtih the subtitles on to even know whats happening.

Dialogue is quiet b/c chaos is erupting on Infinity. if you know what i mean.